awesome-javascript/README.md

Awesome JavaScript

A collection of awesome browser-side JavaScript libraries, resources and shiny things.

Contents

• Package Managers
• Component management
• Loaders
• Transpilers
• Bundlers
• Minimizers
• Type Checkers
• Testing Frameworks
• QA Tools
• MVC Frameworks and Libraries
• Node-Powered CMS Frameworks
• Templating Engines
• Game Engines
• Articles/Posts
• Data Visualization
  • Timeline
  • Spreadsheet
• Editors
• Documentation
• Utilities
  • Files
  • Functional Programming
  • Reactive Programming
  • Data Structure
  • Date
  • String
  • Number
  • Storage
  • Color
  • I18n And L10n
  • Control Flow
  • Routing
  • Security
  • Log
  • RegExp
  • Media
  • Voice Command
  • API
  • Streaming
  • Vision Detection
  • Browser Detection
  • Operating System
  • Benchmark
  • Machine Learning
  • Web Worker
• UI
  • Code Highlighting
  • Loading Status
  • Validation
  • Keyboard Wrappers
  • Tours And Guides
  • Notifications
  • Sliders
  • Range Sliders
  • Form Widgets
  • Tips
  • Modals and Popups
  • Scroll
  • Menu
  • Table/Grid
  • Frameworks
  • Boilerplates
  • Images
• Gesture
• Maps
• Typography
• Animations
• Image processing
• ES6
• Generators
• Full Text Search
• SDK
• ORM
• WebSockets
• Misc
• Worth Reading
• Other Awesome Lists
• Contributing

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Package Managers

Host the JavaScript libraries and provide tools for fetching and packaging them.

Name	Repository	Description	Badges
npm	npm/cli	the package manager for JavaScript.
Bower	bower/bower	A package manager for the web.
jspm	jspm/jspm-cli	Import Map Package Manager.
yarn	yarnpkg/berry	Fast, reliable, and secure dependency management.
pnpm	pnpm/pnpm	Fast, disk space efficient package manager.
bun	oven-sh/bun	Incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one

Component Management

Name	Repository	Description	Badges
Bit	teambit/bit	AI-powered development workspaces with reusable components, architectural clarity and zero overhead.

Loaders

Module or loading system for JavaScript.

Name	Repository	Description	Badges
RequireJS	requirejs/requirejs	A file and module loader for JavaScript.
browserify	browserify/browserify	browser-side require() the node.js way.
SystemJS	systemjs/systemjs	Dynamic ES module loader.

Transpilers

Software that converts the modern JavaScript syntax into the older JavaScript syntax.

Name	Repository	Description	Badges
SWC	swc-project/swc	Rust-based platform for the Web.

Bundlers

Name	Repository	Description	Badges
webpack	webpack/webpack	A bundler for javascript and friends.
Rollup	rollup/rollup	Next-generation ES module bundler.
Parcel	parcel-bundler/parcel	The zero configuration build tool for the web.
Microbundle	developit/microbundle	Zero-configuration bundler for tiny modules.
bundlejs	okikio/bundlejs	An online tool to quickly bundle & minify your projects, while viewing the compressed gzip/brotli bundle size, all running locally on your browser.
Vite	vitejs/vite	Next generation frontend tooling. It's fast!

Minimizers

Name	Repository	Description	Badges
Terser	terser/terser	JavaScript parser, mangler and compressor toolkit for ES6+.
UglifyJS	Uglify	JavaScript parser / mangler / compressor / beautifier toolkit.

Type Checkers

Name	Repository	Description	Badges
TypeScript	-	A typed superset of JavaScript that compiles to plain JavaScript.
Flow.js	-	A static type checker for JavaScript from Facebook.
Hegel	-	A static type checker for JavaScript with a bias on type inference an strong type system.
TypL	getify/TypL	the JavaScript Type Linter with a bias on type inference.
Hindley Milner Definitions	xodio/hm-def	runtime type checking for JavaScript functions using Haskell-alike Hindley Milner type signatures.
Zod	colinhacks/zod	TypeScript-first schema validation with built-in static type inference.

Testing Frameworks

Frameworks

Name	Repository	Description	Badges
mocha	mochajs/mocha	Simple, flexible, fun JavaScript test framework for node.js & the browser.
jasmine	jasmine/jasmine	DOM-less simple JavaScript testing framework.
qunit	jquery/qunit	An easy-to-use JavaScript Unit Testing framework.
jest	facebook/jest	Painless JavaScript Unit Testing.
prova	azer/prova	Node & Browser test runner based on Tape and Browserify
DalekJS	dalekjs/dalek	Automated cross browser functional testing with JavaScript
Protractor	angular/protractor	Protractor is an end-to-end test framework for AngularJS applications.
tape	substack/tape	Tap-producing test harness for node and browsers.
TestCafe	DevExpress/testcafe	Automated browser testing for the modern web development stack.
ava	avajs/ava	🚀 Futuristic JavaScript test runner
Cypress	-	Complete end-to-end testing framework for anything that runs in a browser and beyond.
WebdriverI/O	-	Next-gen browser and mobile automation test framework for Node.js

Assertion

Name	Repository	Description	Badges
chai	chaijs/chai	BDD / TDD assertion framework for node.js and the browser that can be paired with any testing framework.
Enzyme	-	Enzyme is a JavaScript Testing utility for React that makes it easier to assert, manipulate, and traverse your React Components' output.
react testing library	kentcdodds/react-testing-library	Simple and complete React DOM testing utilities that encourage good testing practices.
Sinon.JS	sinonjs/sinon	Test spies, stubs, and mocks for JavaScript.
expect.js	Automattic/expect.js	Minimalistic BDD-style assertions for Node.JS and the browser.
proxyquire	thlorenz/proxyquire	Stub nodejs's require.
Supertest	visionmedia/supertest	A popular HTTP assertion library for testing REST APIs, often used with other testing frameworks like Mocha or Jest

Coverage

Name	Repository	Description	Badges
istanbul	gotwarlost/istanbul	Yet another JS code coverage tool.
blanket	alex-seville/blanket	A simple code coverage library for JavaScript. Designed to be easy to install and use, for both browser and nodejs.
JSCover	tntim96/JSCover	JSCover is a tool that measures code coverage for JavaScript programs.

Runner

Name	Repository	Description	Badges
phantomjs	ariya/phantomjs	Scriptable Headless WebKit.
slimerjs	laurentj/slimerjs	A PhantomJS-like tool running Gecko.
casperjs	casperjs/casperjs	Navigation scripting & testing utility for PhantomJS and SlimerJS.
zombie	assaf/zombie	Insanely fast, full-stack, headless browser testing using node.js.
totoro	totorojs/totoro	A simple and stable cross-browser testing tool.
karma	karma-runner/karma	Spectacular Test Runner for JavaScript.
nightwatch	nightwatchjs/nightwatch	UI automated testing framework based on node.js and selenium webdriver.
intern	theintern/intern	A next-generation code testing stack for JavaScript.
puppeteer	GoogleChrome/puppeteer	Headless Chrome Node.js API by official Google Chrome team.
webdriverio	webdriverio/webdriverio	Next-gen WebDriver test automation framework for Node.js.
taiko	getgauge/taiko	A Node.js library with a simple API to automate Chromium based browsers.
Playwright	microsoft/playwright	Node.js library to automate Chromium, Firefox and WebKit with a single API.

QA Tools

Name	Repository	Description	Badges
prettier	prettier/prettier	Prettier is an opinionated code formatter.
JSHint	jshint/jshint	JSHint is a tool that helps to detect errors and potential problems in your JavaScript code.
jscs	jscs-dev/node-jscs	JavaScript Code Style checker.
jsfmt	rdio/jsfmt	For formatting, searching, and rewriting JavaScript.
jsinspect	danielstjules/jsinspect	Detect copy-pasted and structurally similar code.
buddy.js	danielstjules/buddy.js	Magic number detection for JavaScript.
ESLint	eslint/eslint	A fully pluggable tool for identifying and reporting on patterns in JavaScript.
JSLint	douglascrockford/JSLint	High-standards, strict & opinionated code quality tool, aiming to keep only good parts of the language.
JavaScript Standard Style	feross/standard	Opinionated, no-configuration style guide, style checker, and formatter
Pre-evaluate code at buildtime	kentcdodds/preval.macro	Pre-evaluate your front end javascript code at build-time
JS-Beautifier	beautify-web/js-beautify	Npm cli and library to format JS code.
husky	typicode/husky	Prevents bad git commit, git push and more.

MVC Frameworks and Libraries

Name	Repository	Description	Badges
angular.js	angular/angular.js	HTML enhanced for web apps. (deprecated)
angular	angular/angular	Angular is a development platform for building mobile and desktop web applications using Typescript/JavaScript and other languages.
aurelia	-	A JavaScript client framework for mobile, desktop and web.
backbone	jashkenas/backbone	Give your JS App some Backbone with Models, Views, Collections, and Events.
ember.js	emberjs/ember.js	A JavaScript framework for creating ambitious web applications.
meteor	meteor/meteor	An ultra-simple, database-everywhere, data-on-the-wire, pure-javascript web framework.
ractive	ractivejs/ractive	Next-generation DOM manipulation.
vue	vuejs/vue	Intuitive, fast & composable MVVM for building interactive interfaces.
svelte	sveltejs/svelte	Svelte is a new way to build web applications. It's a compiler that takes your declarative components and converts them into efficient JavaScript that surgically updates the DOM.
knockout	knockout/knockout	Knockout makes it easier to create rich, responsive UIs with JavaScript.
spine	spine/spine	Lightweight MVC library for building JavaScript applications.
espresso.js	techlayer/espresso.js	A minimal JavaScript library for crafting user interfaces.
canjs	canjs/canjs	Can do JS, better, faster, easier.
react	-	A library for building user interfaces. It's declarative, efficient, and extremely flexible. Works with a Virtual DOM.
hyperapp	hyperapp/hyperapp	1kb JavaScript library for building frontend applications.
preact	developit/preact	Fast 3kb React alternative with the same ES6 API. Components & Virtual DOM.
nativescript	NativeScript/NativeScript	Build truly native cross-platform iOS and Android apps with JavaScript.
react-native	facebook/react-native	A framework for building native apps with React.
riot	riot/riot	React-like library, but with very small size.
thorax	walmartlabs/thorax	Strengthening your Backbone.
chaplin	chaplinjs/chaplin	An architecture for JavaScript applications using the Backbone.js library.
marionette	marionettejs/backbone.marionette	A composite application library for Backbone.js that aims to simplify the construction of large scale JavaScript applications.
ripple	ripplejs/ripple	A tiny foundation for building reactive views.
rivets	mikeric/rivets	Lightweight and powerful data binding + templating solution.
derby	derbyjs/derby	MVC framework making it easy to write realtime, collaborative applications that run in both Node.js and browsers.
derby-awesome	russll/awesome-derby	A collection of awesome derby components
way.js	gwendall/way.js	Simple, lightweight, persistent two-way databinding.
mithril.js	lhorie/mithril.js	Mithril is a client-side MVC framework (Light-weight, Robust, Fast).
jsblocks	astoilkov/jsblocks	jsblocks is better MV-ish framework.
feathers	feathersjs/feathers	A minimalist real-time JavaScript framework for tomorrow's apps.
Keo	Wildhoney/Keo	Functional stateless React components with Shadow DOM support.
atvjs	emadalam/atvjs	Blazing fast Apple TV application development using pure JavaScript.
Alpine.js	alpinejs/alpine	offers you the reactive and declarative nature of big frameworks like Vue or React at a much lower cost.
inferno	infernojs/inferno	🔥 An extremely fast, React-like JavaScript library for building modern user interfaces.
FoalTS	-	Elegant and all-inclusive Node.JS framework for building web applications (TypeScript).
Lucia	aidenybai/lucia	3kb library for tiny web apps.
Adonis	adonisjs/core	The Node.js Framework highly focused on developer ergonomics, stability and confidence.
GrapesJS	artf/grapesjs	Free and Open source Web Builder Framework. Next generation tool for building templates without coding.
Rete.js	retejs/rete	A modular framework for visual programming allows to create node based editor in browser.
litegraph.js	jagenjo/litegraph.js	A graph node engine and editor similar to PD or UDK Blueprints, comes with its own editor in HTML5 Canvas2D.
Drawflow	jerosoler/Drawflow	This allow you to create data flows easily and quickly.
Blockly	google/blockly	A library that adds a visual code editor to web and mobile apps by Google.
Million	aidenybai/million	<1kb compiler-focused virtual DOM. It's fast!
Whatsup	whatsup/whatsup	A frontend framework for chillout-mode development 🥤. JSX components on generators, fast mobx-like state management and exclusive cssx style system.
Remult	remult/remult	A CRUD framework for full-stack TypeScript.

Node-Powered CMS Frameworks

Name	Repository	Description	Badges
KeystoneJS	keystonejs/keystone	powerful CMS and web app framework.
Reaction Commerce	reactioncommerce/reaction	reactive CMS, real-time architecture and design.
Ghost	tryghost/Ghost	simple, powerful publishing platform.
Apostrophe	punkave/apostrophe	CMS with content editing and essential services.
We.js	wejs/we	framework for real time apps, sites or blogs.
Hatch.js	inventures/hatchjs	CMS platform with social features.
TaracotJS	xtremespb/taracotjs-generator	fast and minimalist CMS based on Node.js.
Nodizecms	nodize/nodizecms	CMS for CoffeeScript lovers.
Cody	jcoppieters/cody	CMS with WSYWYG editor.
PencilBlue	pencilblue/pencilblue	CMS and blogging platform.
Strapi	strapi/strapi	Open source Node.js Headless CMS to easily build customisable APIs.
Factor	fiction-com/factor	The Javascript CMS

Templating Engines

Templating engines allow you to perform string interpolation.

Name	Repository	Description	Badges
mustache.js	janl/mustache.js	Minimal templating with {{mustaches}} in JavaScript.
handlebars.js	handlebars-lang/handlebars.js	An extension to the Mustache templating language.
nunjucks	-	A rich and powerful templating language for JavaScript from Mozilla.
hogan.js	twitter/hogan.js	A compiler for the Mustache templating language.
doT	olado/doT	The fastest + concise JavaScript template engine for nodejs and browsers.
dustjs	linkedin/dustjs	Asynchronous templates for the browser and node.js.
eco	sstephenson/eco	Embedded CoffeeScript templates.
JavaScript-Templates	blueimp/JavaScript-Templates	< 1KB lightweight, fast & powerful JavaScript templating engine with zero dependencies.
t.js	jasonmoo/t.js	A tiny JavaScript templating framework in ~400 bytes gzipped.
Pug	pugjs/pug	Robust, elegant, feature rich template engine for nodejs. (formerly known as Jade)
EJS	mde/ejs	Effective JavaScript templating.
xtemplate	xtemplate/xtemplate	eXtensible Template Engine lib for node and the browser
marko	marko-js/marko	A fast, lightweight, HTML-based templating engine for Node.js and the browser with async, streaming, custom tags and CommonJS modules as compiled output.
swig	paularmstrong/swig	(Archived) A simple, powerful, and extendable Node.js and browser-based JavaScript template engine.
hmpl	-	Server-oriented customizable templating for JavaScript.

Game Engines

Name	Repository	Description	Badges
A-Frame	-	Make WebVR.
Cocos	-	Open Source Cross-Platform Game Development Framework.
Impact	-	Impact - HTML5 Canvas & JavaScript Game Engine.
GDevelop	-	Free and Easy Game-Making App.
Kaboom.js	-	A game programming library that helps you make games fast and fun.
Matter.js	-	A 2D rigid body JavaScript physics engine.
melonJS	-	Open source HTML5 game engine that empowers developers and designers to focus on content.
Phaser	-	Phaser - A fast, fun and free open source HTML5 game framework.
PixiJS	-	The HTML5 Creation Engine.
PlayCanvas	-	PlayCanvas WebGL Game Engine.

Articles and Posts

Name	Repository	Description	Badges
The JavaScript that you should know	-	Article about concepts of JavaScript Functional.
Multi-threading using web-workers	-	Web Workers: Adding Multi-threading to JavaScript
this keyword in JavaScript	-	Breaking down the 'this' keyword in JavaScript

Data Visualization

Data visualization tools for the web.

Name	Repository	Description	Badges
d3	d3/d3	A JavaScript visualization library for HTML and SVG.
metrics-graphics	mozilla/metrics-graphics	A library optimized for concise, principled data graphics and layouts.
three.js	mrdoob/three.js	JavaScript 3D library.
Chart.js	chartjs/Chart.js	Simple HTML5 Charts using the <canvas> tag.
paper.js	paperjs/paper.js	The Swiss Army Knife of Vector Graphics Scripting – Scriptographer ported to JavaScript and the browser, using HTML5 Canvas.
fabric.js	kangax/fabric.js	JavaScript Canvas Library, SVG-to-Canvas (& canvas-to-SVG) Parser.
peity	benpickles/peity	Progressive
raphael	DmitryBaranovskiy/raphael	JavaScript Vector Library.
echarts	apache/echarts	Enterprise Charts.
visjs	-	Multiple Libraries for dynamic, browser-based data visualization.
two.js	jonobr1/two.js	A renderer agnostic two-dimensional drawing api for the web.
g.raphael	DmitryBaranovskiy/g.raphael	Charts for Raphaël.
sigma.js	jacomyal/sigma.js	A JavaScript library dedicated to graph drawing.
arbor	samizdatco/arbor	A graph visualization library using web workers and jQuery.
cubism	square/cubism	A D3 plugin for visualizing time series.
dc.js	dc-js/dc.js	Multi-Dimensional charting built to work natively with crossfilter rendered with d3.js
vega	trifacta/vega	A visualization grammar.
envisionjs	HumbleSoftware/envisionjs	Dynamic HTML5 visualization.
rickshaw	shutterstock/rickshaw	JavaScript toolkit for creating interactive real-time graphs.
flot	flot/flot	Attractive JavaScript charts for jQuery.
morris.js	morrisjs/morris.js	Pretty time-series line graphs.
nvd3	novus/nvd3	Build re-usable charts and chart components for d3.js.
svg.js	wout/svg.js	A lightweight library for manipulating and animating SVG.
heatmap.js	pa7/heatmap.js	JavaScript Library for HTML5 canvas based heatmaps.
jquery.sparkline	gwatts/jquery.sparkline	A plugin for the jQuery JavaScript library to generate small sparkline charts directly in the browser.
trianglify	qrohlf/trianglify	Low poly style background generator with d3.js.
d3-cloud	jasondavies/d3-cloud	Create word clouds in JavaScript.
d4	heavysixer/d4	A friendly reusable charts DSL for D3.
dimple.js	-	Easy charts for business analytics powered by d3.
chartist-js	gionkunz/chartist-js	Simple responsive charts.
epoch	epochjs/epoch	A general purpose real-time charting library.
c3	c3js/c3	D3-based reusable chart library.
BabylonJS	BabylonJS/Babylon.js	A framework for building 3D games with HTML 5 and WebGL.
recharts	recharts/recharts	Redefined chart library built with React and D3.
GraphicsJS	AnyChart/GraphicsJS	A lightweight JavaScript graphics library with the intuitive API, based on SVG/VML technology.
mxGraph	jgraph/mxgraph	Diagramming library that enables interactive graph and charting applications to be quickly created that run natively in any major browser that is supported by its vendor.
Frappe Charts	frappe/charts	GitHub-inspired simple and modern SVG charts for the web with zero dependencies.
Frappe Gantt	frappe/gantt	A simple, interactive, modern gantt chart library for the web.
G2	antvis/G2	A highly interactive data-driven visualization grammar for statistical charts.
G2Plot	antvis/G2Plot	An interactive and responsive charting library. Based on the grammar of graphics.
Cytoscape.js	cytoscape/cytoscape.js	A fully featured graph theory library.
cola.js	-	library for arranging your HTML5 documents and diagrams using constraint-based optimization techniques
jointjs	clientIO/joint	Diagramming library to create static diagrams or fully interactive diagramming tools.
vizzu	vizzuhq/vizzu-lib	Library for animated data visualizations and data stories.

There're also some great commercial libraries, like amchart, anychart, plotly, and lightning chart.

Timeline

Name	Repository	Description	Badges
TimelineJS v3	NUKnightLab/TimelineJS3	A Storytelling Timeline built in JavaScript.
timesheet.js	sbstjn/timesheet.js	JavaScript library for simple HTML5 & CSS3 time sheets.

Spreadsheet

Name	Repository	Description	Badges
HANDSONTABLE	handsontable/handsontable	Handsontable is a JavaScript/HTML5 Spreadsheet Library for Developers
Frappe Datatable	frappe/datatable	Frappe DataTable is a simple, modern and interactive datatable library for displaying tabular data.
Luckysheet	mengshukeji/Luckysheet	Luckysheet is an online spreadsheet like excel that is powerful, simple to configure, and completely open source.
Jspreadsheet CE	jspreadsheet/ce	Jspreadsheet is a lightweight vanilla javascript plugin to create amazing web-based interactive tables and spreadsheets compatible with other spreadsheet software.
RevoGrid	revolist/revogrid	RevoGrid is a fast, responsive excel like data grid library for modern web applications.

Editors

Name	Repository	Description	Badges
ace	ajaxorg/ace	Ace (Ajax.org Cloud9 Editor).
CodeMirror	codemirror/CodeMirror	In-browser code editor.
esprima	ariya/esprima	ECMAScript parsing infrastructure for multipurpose analysis.
quill	quilljs/quill	A cross browser rich text editor with an API.
medium-editor	yabwe/medium-editor	Medium.com WYSIWYG editor clone.
pen	sofish/pen	enjoy live editing (+markdown).
jquery-notebook	raphaelcruzeiro/jquery-notebook	A simple, clean and elegant text editor. Inspired by the awesomeness of Medium.
bootstrap-wysiwyg	mindmup/bootstrap-wysiwyg	Tiny bootstrap-compatible WYSIWYG rich text editor.
ckeditor-releases	ckeditor/ckeditor-releases	The best web text editor for everyone.
editor	lepture/editor	A markdown editor. still on development.
EpicEditor	OscarGodson/EpicEditor	An embeddable JavaScript Markdown editor with split fullscreen editing, live previewing, automatic draft saving, offline support, and more.
jsoneditor	josdejong/jsoneditor	A web-based tool to view, edit and format JSON.
vim.js	coolwanglu/vim.js	JavaScript port of Vim with a persistent ~/.vimrc.
Squire	neilj/Squire	HTML5 rich text editor.
TinyMCE	tinymce/tinymce	The JavaScript Rich Text editor.
trix	basecamp/trix	A rich text editor for everyday writing. By Basecamp.
Trumbowyg	Alex-D/Trumbowyg	A lightweight and amazing WYSIWYG JavaScript editor.
Draft.js	facebook/draft-js	A React framework for building text editors.
bootstrap-wysihtml5	jhollingworth/bootstrap-wysihtml5	Simple, beautiful wysiwyg editor
wysihtml5	xing/wysihtml5	Open source rich text editor based on HTML5 and the progressive-enhancement approach. Uses a sophisticated security concept and aims to generate fully valid HTML5 markup by preventing unmaintainable tag soups and inline styles.
raptor-editor	PANmedia/raptor-editor	Raptor, an HTML5 WYSIWYG content editor!
popline	kenshin54/popline	Popline is an HTML5 Rich-Text-Editor Toolbar.
Summernote	summernote/summernote	Super simple WYSIWYG editor.
Everright-formEditor	Liberty-liu/Everright-formEditor	A visual drag-and-drop low-code form editor

Documentation

Name	Repository	Description	Badges
DevDocs	-	is an all-in-one API documentation reader with a fast, organized, and consistent interface.
docco	-	is a quick-and-dirty, hundred-line-long, literate-programming-style documentation generator.
styledocco	-	generates documentation and style guide documents from your stylesheets.
Ronn	rtomayko/ronn	builds manuals. It converts simple, human readable textfiles to roff for terminal display, and also to HTML for the web.
dox	tj/dox	is a JavaScript documentation generator written with node. Dox no longer generates an opinionated structure or style for your docs, it simply gives you a JSON representation, allowing you to use markdown and JSDoc-style tags.
jsdox	sutoiku/jsdox	is a JSDoc3 to Markdown documentation generator.
ESDoc	esdoc/esdoc	is a good documentation generator for JavaScript.
YUIDoc	-	is a Node.js application that generates API documentation from comments in source, using a syntax similar to tools like Javadoc and Doxygen.
coddoc	-	is a jsdoc parsing library. Coddoc is different in that it is easily extensible by allowing users to add tag and code parsers through the use of coddoc.addTagHandler and coddoc.addCodeHandler. coddoc also parses source code to be used in APIs.
sphinx	-	a tool that makes it easy to create intelligent and beautiful documentation
Beautiful docs	beautiful-docs/beautiful-docs	is a documentation viewer based on markdown files.
documentation.js	-	API documentation generator with support for ES2015+ and flow annotation.
jsduck	senchalabs/jsduck	API documentation generator made for Sencha JavaScript frameworks, but can be used for other frameworks too.
codecrumbs	Bogdan-Lyashenko/codecrumbs	is a visual tool for learning and documenting a codebase by putting breadcrumbs in source code.

Files

Libraries for working with files.

Name	Repository	Description	Badges
Papa Parse	mholt/PapaParse	A powerful CSV library that supports parsing CSV files/strings and also exporting to CSV.
jBinary	jDataView/jBinary	High-level I/O (loading, parsing, manipulating, serializing, saving) for binary files with declarative syntax for describing file types and data structures.
diff2html	rtfpessoa/diff2html	Git diff output parser and pretty HTML generator.
jsPDF	MrRio/jsPDF	JavaScript PDF generation.
PDF.js	mozilla/pdf.js	PDF Reader in JavaScript.

Functional Programming

Functional programming libraries to extend JavaScript’s capabilities.

Name	Repository	Description	Badges
underscore	jashkenas/underscore	JavaScript's utility _ belt.
lodash	lodash/lodash	A utility library delivering consistency, customization, performance, & extras.
Sugar	andrewplummer/Sugar	A JavaScript library for working with native objects.
lazy.js	dtao/lazy.js	Like Underscore, but lazier.
ramda	ramda/ramda	A practical functional library for JavaScript programmers.
mout	mout/mout	Modular JavaScript Utilities.
preludejs	alanrsoares/prelude-js	Hardcore Functional Programming for JavaScript.
rambda	selfrefactor/rambda	Faster and smaller alternative to Ramda.
fxts	marpple/FxTS	Lazy evaluation and concurrency.
wild-wild-path	ehmicky/wild-wild-path	Object property paths with wildcards and regexps.
sweet-monads	JSMonk/sweet-monads	A utility library containing popular monads and lazy iterators.

Reactive Programming

Reactive programming libraries to extend JavaScript’s capabilities.

Name	Repository	Description	Badges
RxJS	ReactiveX/rxjs	A reactive programming library for JavaScript.
Bacon	baconjs/bacon.js	FRP (functional reactive programming) library for JavaScript.
Kefir	pozadi/kefir	FRP library for JavaScript inspired by Bacon.js and RxJS with focus on high performance and low memory consumption.
Highland	-	Re-thinking the JavaScript utility belt, Highland manages synchronous and asynchronous code easily, using nothing more than standard JavaScript and Node-like Streams.
Most.js	cujojs/most	high performance FRP library.
MobX	mobxjs/mobx	TFRP library for simple, scalable state management.
Cycle.js	-	A functional and reactive JavaScript library for cleaner code.
concent	concentjs/concent	Definitely the ❤️ simplest but ⚡️ strongest state management for react, it is predictable、progressive and efficient.

Data Structure

Data structure libraries to build a more sophisticated application.

Name	Repository	Description	Badges
immutable-js	facebook/immutable-js	Immutable Data Collections including Sequence, Range, Repeat, Map, OrderedMap, Set and a sparse Vector.
mori	swannodette/mori	A library for using ClojureScript's persistent data structures and supporting API from the comfort of vanilla JavaScript.
buckets	mauriciosantos/Buckets-JS	A complete, fully tested and documented data structure library written in JavaScript.
hashmap	flesler/hashmap	Simple hashmap implementation that supports any kind of keys.
ngraph.graph	anvaka/ngraph.graph	Graph data structure in javascript.
js-sdsl	zly201/js-sdsl	Refer to the javascript standard data structure library implemented by c++ stl, which supports c++ bidirectional iterator mode.

Date

Date Libraries.

Name	Repository	Description	Badges
moment	moment/moment	Parse, validate, manipulate, and display dates in JavaScript.
moment-timezone	moment/moment-timezone	Timezone support for moment.js.
jquery-timeago	rmm5t/jquery-timeago	A jQuery plugin that makes it easy to support automatically updating fuzzy timestamps (e.g. "4 minutes ago").
timezone-js	mde/timezone-js	Timezone-enabled JavaScript Date object. Uses Olson zoneinfo files for timezone data.
date	MatthewMueller/date	Date() for humans.
ms.js	rauchg/ms.js	Tiny millisecond conversion utility.
countdown.js	gumroad/countdown.js	Super simple countdowns.
timeago.js	hustcc/timeago.js	Simple library (less then 2kb) used to format date with *** time ago statement.
fecha	taylorhakes/fecha	Lightweight date formatting and parsing (~2KB). Meant to replace parsing and formatting functionality of moment.js.
date-fns	date-fns/date-fns	Modern JavaScript date utility library.
map-countdown	dawidjaniga/map-countdown	A browser countdown built on top of the Google Maps.
dayjs	iamkun/dayjs	Day.js 2KB immutable date library alternative to Moment.js with the same modern API.
luxon	moment/luxon	Luxon is a library for working with dates and times in JavaScript.
tempo	formkit/tempo	Parsing, formatting, and timezones — Tempo is a small tree-shakable library for native Date objects.

String

String Libraries.

Name	Repository	Description	Badges
voca	panzerdp/voca	The ultimate JavaScript string library
selecting	EvandroLG/selecting	A library that allows you to access the text selected by the user.
underscore.string	epeli/underscore.string	String manipulation extensions for Underscore.js JavaScript library.
string.js	jprichardson/string.js	Extra JavaScript string methods.
he	mathiasbynens/he	A robust HTML entity encoder/decoder written in JavaScript.
multiline	sindresorhus/multiline	Multiline strings in JavaScript.
query-string	sindresorhus/query-string	Parse and stringify URL query strings.
URI.js	medialize/URI.js	JavaScript URL mutation library.
jsurl	Mikhus/domurl	Lightweight URL manipulation with JavaScript.
sprintf.js	alexei/sprintf.js	A sprintf implementation.
url-pattern	snd/url-pattern	Easier than regex string matching patterns for urls and other strings. Turn strings into data or data into strings.
plexis	plexis-js/plexis	Lo-fi, powerful, community-driven string manipulation library.
url-state-machine	anonrig/url-js	Super fast spec-compliant URL parser state machine for Node.js.

Number

Name	Repository	Description	Badges
Numeral-js	adamwdraper/Numeral-js	A JavaScript library for formatting and manipulating numbers.
chance.js	chancejs/chancejs	Random generator helper in JavaScript. Can generate numbers, strings etc.
odometer	HubSpot/odometer	Smoothly transitions numbers with ease.
accounting.js	josscrowcroft/accounting.js	A lightweight JavaScript library for number, money and currency formatting - fully localisable, zero dependencies.
money.js	josscrowcroft/money.js	A tiny (1kb) JavaScript currency conversion library, for web & nodeJS.
Fraction.js	infusion/Fraction.js	A rational number library for JavaScript.
Complex.js	infusion/Complex.js	A complex number library for JavaScript.
Polynomial.js	infusion/Polynomial.js	A polynomials library for JavaScript.
Quaternion.js	infusion/Quaternion.js	A quaternion library for JavaScript

Storage

Name	Repository	Description	Badges
store.js	marcuswestin/store.js	LocalStorage wrapper for all browsers without using cookies or flash. Uses localStorage, globalStorage, and userData behavior under the hood.
localForage	mozilla/localForage	Offline storage, improved. Wraps IndexedDB, WebSQL, or localStorage using a simple but powerful API.
jStorage	andris9/jStorage	jStorage is a simple key/value database to store data on browser side.
cross-storage	zendesk/cross-storage	Cross domain local storage, with permissions.
basket.js	addyosmani/basket.js	A script and resource loader for caching & loading scripts with localStorage.
bag.js	nodeca/bag.js	A caching script and resource loader, similar to basket.js, but with additional k/v interface and localStorage / websql / indexedDB support.
basil.js	Wisembly/basil.js	The missing JavaScript smart persistent layer.
jquery-cookie	carhartl/jquery-cookie	A simple, lightweight jQuery plugin for reading, writing and deleting cookies.
js-cookie	js-cookie/js-cookie	A simple, lightweight JavaScript API for handling browser cookies.
Cookies	ScottHamper/Cookies	JavaScript Client-Side Cookie Manipulation Library.
DB.js	aaronpowell/db.js	Promise based IndexDB Wrapper library.
lawnchair.js	brianleroux/lawnchair	Simple client-side JSON storage.
sql.js	kripken/sql.js	SQLite compiled to JavaScript through Emscripten.
pouchdb	pouchdb/pouchdb	Javascript db inspired by Apache CouchDB to run well within the browser.
crumbsjs	nirtz89/crumbsjs	A lightweight vanilla ES6 cookies and local storage JavaScript library.
awesome-web-storage	softvar/awesome-web-storage	Everything you need to know about client-side storage.
datavore	StanfordHCI/datavore	A small, fast, in-browser database engine written in JavaScript.
Hoodie	hoodiehq/hoodie	Offline First backend to work in browser without internet connectivity.
NeDB	louischatriot/nedb	Embedded Persistent database for Browsers, nw.js, electron.
Lovefield	-	Lovefield is a relational database for web apps, By Google.
Dexie.js	dexie/Dexie.js	Dexie.js is a wrapper library for indexedDB.
proxy-web-storage	KID-joker/proxy-web-storage	Keep the type of storage value unchanged and change array and object directly. Supports listening to the changes and setting expires.
PostgreSQL Browser	datawan-labs/pg	Browser PostgreSQL Playground, no server, just client and pglite (postgresql wasm)

Color

Name	Repository	Description	Badges
randomColor	davidmerfield/randomColor	A color generator for JavaScript.
chroma.js	gka/chroma.js	JavaScript library for all kinds of color manipulations.
color	Qix-/color	JavaScript color conversion and manipulation library.
colors	mrmrs/colors	Smarter defaults for colors on the web.
PleaseJS	Fooidge/PleaseJS	JavaScript Library for creating random pleasing colors and color schemes.
TinyColor	bgrins/TinyColor	Fast, small color manipulation and conversion for JavaScript.
Vibrant.js	jariz/vibrant.js	Extract prominent colors from an image.

i18n and l10n

Internationalization (i18n) and localization (l10n) JavaScript libraries.

Name	Repository	Description	Badges
i18next	i18next/i18next	internationalisation (i18n) with JavaScript the easy way.
polyglot	airbnb/polyglot.js	tiny i18n helper library.
babelfish	nodeca/babelfish	i18n with human friendly API and built in plurals support.
ttag	ttag-org/ttag	Modern javascript i18n localization library based on ES6 tagged templates and the good old GNU gettext.
attranslate	fkirc/attranslate	A JavaScript-tool for synchronizing translation-files, including JSON/YAML/XML and other formats.

Control Flow

Name	Repository	Description	Badges
async	caolan/async	Async utilities for node and the browser.
q	kriskowal/q	A tool for making and composing asynchronous promises in JavaScript.
step	creationix/step	An async control-flow library that makes stepping through logic easy.
contra	bevacqua/contra	Asynchronous flow control with a functional taste to it.
Bluebird	petkaantonov/bluebird	fully featured promise library with focus on innovative features and performance.
when	cujojs/when	A solid, fast Promises/A+ and when() implementation, plus other async goodies.
ObjectEventTarget	gartz/ObjectEventTarget	Provide a prototype that add support to event listeners (with same behavior of EventTarget from DOMElements available on browsers).
sporadic	marcoonroad/sporadic	Composable concurrency abstractions (such as streams, coroutines and Go-like channels) on top of promises, for Node and browser engines.

Routing

Name	Repository	Description	Badges
director	flatiron/director	A tiny and isomorphic URL router for JavaScript.
page.js	visionmedia/page.js	Micro client-side router inspired by the Express router (~1200 bytes).
pathjs	mtrpcic/pathjs	Simple, lightweight routing for web browsers.
crossroads	millermedeiros/crossroads.js	JavaScript Routes.
davis.js	olivernn/davis.js	RESTful degradable JavaScript routing using pushState.
navaid	lukeed/navaid	A navigation aid (aka, router) for the browser in 850 bytes~!

Security

Name	Repository	Description	Badges
DOMPurify	cure53/DOMPurify	A DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG.
js-xss	leizongmin/js-xss	Sanitize untrusted HTML (to prevent XSS) with a configuration specified by a Whitelist.
xss-filters	yahoo/xss-filters	Secure XSS Filters by Yahoo.
sanitize-html	apostrophecms/sanitize-html	sanitize-html provides a simple HTML sanitizer with a clear API.

Log

Name	Repository	Description	Badges
log	adamschwartz/log	Console.log with style.
Conzole	Oaxoa/Conzole	A debug panel built in JavaScript that wraps JavaScript native console object methods and functionality in a panel displayed inside the page.
console.log-wrapper	patik/console.log-wrapper	Log to the console in any browser with clarity.
loglevel	pimterry/loglevel	Minimal lightweight logging for JavaScript, adding reliable log level methods to wrap any available console.log methods.
minilog	-	– Lightweight client & server-side logging with Stream-API backends.
storyboard	-	Universal logging library + Chrome extension; it lets you see all client and server tasks triggered by a user action in a single place.
LogTape	-	Simple logging library with zero dependencies for Deno, Node.js, Bun, browsers, and edge functions.

RegExp

Name	Repository	Description	Badges
RegEx101	-	Online regex tester and debugger for JavaScript. Also supports Python, PHP and PCRE.
RegExr	-	HTML/JS based tool for creating, testing, and learning about Regular Expressions.
Regulex	-	JavaScript Regular Expression Parser & Visualizer.
Regex-Vis	-	Regex visualizer & editor.

Voice Command

Name	Repository	Description	Badges
annyang	TalAter/annyang	A JavaScript library for adding voice commands to your site, using speech recognition.
voix.js	pazguille/voix	A JavaScript library to add voice commands to your sites, apps or games.

API

Name	Repository	Description	Badges
axios	axios/axios	Promise based HTTP client for the browser and node.js.
bottleneck	SGrondin/bottleneck	A powerful rate limiter that makes throttling easy.
oauth-signature-js	bettiolo/oauth-signature-js	JavaScript OAuth 1.0a signature generator for node and the browser.
amygdala	lincolnloop/amygdala	RESTful HTTP client for JavaScript powered web applications.
jquery.rest	jpillora/jquery.rest	A jQuery plugin for easy consumption of RESTful APIs.
Rails Ranger	victor-am/rails-ranger	An opinionated REST client for Ruby on Rails APIs.
wretch	elbywan/wretch	A tiny wrapper built around fetch with an intuitive syntax.
FarFetch	WebsiteBeaver/far-fetch	Modern Fetch API wrapper for simplicity, with concise file uploading.
Optic	opticdev/optic	Optic automatically documents and tests your APIs.
SWR	vercel/swr	React Hooks library for remote data fetching.
React Query	tannerlinsley/react-query	Hooks for fetching, caching and updating asynchronous data in React.
SWRV	Kong/swrv	Stale-while-revalidate data fetching for Vue.
Vue Query	DamianOsipiuk/vue-query	Hooks for fetching, caching and updating asynchronous data in Vue.

Streaming

Name	Repository	Description	Badges
Tailor	zalando/tailor	Streaming layout service for front-end microservices, inspired by Facebook's BigPipe.

Vision Detection

Name	Repository	Description	Badges
tracking.js	eduardolundgren/tracking.js	A modern approach for Computer Vision on the web.
ocrad.js	antimatter15/ocrad.js	OCR in JavaScript via Emscripten.

Machine Learning

Name	Repository	Description	Badges
ConvNetJS	karpathy/convnetjs	Deep Learning in JavaScript. Train Convolutional Neural Networks (or ordinary ones) in your browser.
DN2A	dn2a/dn2a-javascript	Digital Neural Networks Architecture.
Brain.js	harthur/brain	Neural networks in JavaScript.
Mind.js	stevenmiller888/mind	A flexible neural network library.
Synaptic.js	cazala/synaptic	Architecture-free neural network library for node.js and the browser.
TensorFlow.js	-	A JavaScript library for training and deploying ML models in the browser and on Node.js.
ml5.js	-	Friendly Machine Learning for the Web.
Synapses	mrdimosthenis/Synapses	Lightweight cross-platform Neural Network library.
m2cgen	BayesWitnesses/m2cgen	A CLI tool to transpile trained classic ML models into a native JavaScript code with zero dependencies.
JS-PyTorch	eduardoleao052/js-pytorch	GPU accelerated PyTorch in JavaScript.

Browser Detection

Name	Repository	Description	Badges
bowser	ded/bowser	a browser detector.

Operating System

Name	Repository	Description	Badges
os.js	os-js/OS.js	An open-source web desktop platform with a window manager, application APIs, GUI toolkit, filesystem abstractions and much more.

Benchmark

Name	Repository	Description	Badges
benchmark.js	bestiejs/benchmark.js	A benchmarking library. As used on jsPerf.com.
matcha	logicalparadox/matcha	A caffeine driven, simplistic approach to benchmarking.
bencher	bencherdev/bencher	A suite of continuous benchmarking tools designed to catch performance regressions in CI.

Web Worker

Name	Repository	Description	Badges
partytown	BuilderIO/partytown	Relocate resource intensive third-party scripts off of the main thread and into a web worker.
comlink	GoogleChromeLabs/comlink	Comlink is a tiny library (1.1kB), that removes the mental barrier of thinking about postMessage and hides the fact that you are working with workers.
greenlet	developit/greenlet	Move an async function into its own thread.
workerize	developit/workerize	Moves a module into a Web Worker, automatically reflecting exported functions as asynchronous proxies.
worker-dom	ampproject/worker-dom	An in-progress implementation of the DOM API intended to run within a Web Worker.
threads.js	andywer/threads.js	Offload CPU-intensive tasks to worker threads in node.js, web browsers and electron using one uniform API.
workly	pshihn/workly	A really simple way to move a function or class to a web worker.
stockroom	developit/stockroom	Offload your store management to a worker easily.
workerpool	josdejong/workerpool	Offload tasks to a pool of workers on node.js and in the browser.
clooney	GoogleChromeLabs/clooney	Clooney is an actor library for the web. Use workers without thinking about workers.

Code highlighting

Name	Repository	Description	Badges
Highlight.js	isagalaev/highlight.js	JavaScript syntax highlighter.
PrismJS	PrismJS/prism	Lightweight, robust, elegant syntax highlighting.

Loading Status

Libraries for indicate load status.

Name	Repository	Description	Badges
Mprogress.js	lightningtgc/MProgress.js	Create Google Material Design progress linear bars.
NProgress	-	Slim progress bars for Ajax'y applications.
Spin.js	fgnass/spin.js	A spinning activity indicator.
progress.js	usablica/progress.js	Create and manage progress bar for every objects on the page.
progressbar.js	kimmobrunfeldt/progressbar.js	Beautiful and responsive progress bars with animated SVG paths.
pace	HubSpot/pace	Automatically add a progress bar to your site.
topbar	buunguyen/topbar	Tiny & beautiful site-wide progress indicator.
nanobar	jacoborus/nanobar	Very lightweight progress bars. No jQuery.
PageLoadingEffects	codrops/PageLoadingEffects	Modern ways of revealing new content using SVG animations.
SpinKit	tobiasahlin/SpinKit	A collection of loading indicators animated with CSS.
Ladda	hakimel/Ladda	Buttons with built-in loading indicators.
css-loaders	lukehaas/css-loaders	A collection of loading spinners animated with CSS

Validation

Name	Repository	Description	Badges
Parsley.js	guillaumepotier/Parsley.js	Validate your forms, frontend, without writing a single line of JavaScript.
jquery-validation	jzaefferer/jquery-validation	jQuery Validation Plugin.
validator.js	chriso/validator.js	String validation and sanitization.
validate.js	rickharrison/validate.js	Lightweight JavaScript form validation library inspired by CodeIgniter.
validatr	jaymorrow/validatr	Cross Browser HTML5 Form Validation.
FormValidation	-	The best jQuery plugin to validate form fields. Formerly BootstrapValidator.
is.js	arasatasaygin/is.js	Check types, regexps, presence, time and more.
FieldVal	FieldVal/fieldval-js	multipurpose validation library. Supports both sync and async validation.
Funval	neuledge/funval	Data validation using functions interfaces (support TypeScript).
vest	ealush/vest	🦺 Declarative form validation framework inspired by unit testing.

Keyboard Wrappers

Name	Repository	Description	Badges
mousetrap	ccampbell/mousetrap	Simple library for handling keyboard shortcuts in JavaScript.
keymaster	madrobby/keymaster	A simple micro-library for defining and dispatching keyboard shortcuts.
Keypress	dmauro/Keypress	A keyboard input capturing utility in which any key can be a modifier key.
KeyboardJS	RobertWHurst/KeyboardJS	A JavaScript library for binding keyboard combos without the pain of key codes and key combo conflicts.
jquery.hotkeys	jeresig/jquery.hotkeys	jQuery Hotkeys lets you watch for keyboard events anywhere in your code supporting almost any key combination.
jwerty	keithamus/jwerty	Awesome handling of keyboard events.

Tours And Guides

Name	Repository	Description	Badges
intro.js	usablica/intro.js	A better way for new feature introduction and step-by-step users guide for your website and project.
shepherd	HubSpot/shepherd	Guide your users through a tour of your app.
bootstrap-tour	sorich87/bootstrap-tour	Quick and easy product tours with Twitter Bootstrap Popovers.
tourist	easelinc/tourist	Simple, flexible tours for your app.
hopscotch	linkedin/hopscotch	A framework to make it easy for developers to add product tours to their pages.
joyride	zurb/joyride	jQuery feature tour plugin.
focusable	zzarcon/focusable	Set a spotlight focus on DOM element adding a overlay layer to the rest of the page.
driver.js	kamranahmedse/driver.js	Powerful yet light-weight, vanilla JavaScript engine to drive the user's focus across the page

Notifications

Name	Repository	Description	Badges
iziToast	dolce/iziToast	Elegant, responsive, flexible and lightweight notification plugin with no dependencies.
messenger	HubSpot/messenger	Growl-style alerts and messages for your app.
noty	needim/noty	jQuery notification plugin.
pnotify	sciactive/pnotify	JavaScript notifications for Bootstrap, jQuery UI, and the Web Notifications Draft.
toastr	CodeSeven/toastr	Simple JavaScript toast notifications.
humane-js	wavded/humane-js	A simple, modern, browser notification system.
smoke.js	hxgf/smoke.js	Framework-agnostic styled alert system for JavaScript.
notie	jaredreich/notie	Simple notifications and inputs with no dependencies.
notifire	notifirehq/notifire	Open-source notification infrastructure for products.
toastify-js	apvarun/toastify-js	Pure JavaScript library for better notification messages.

Sliders

Name	Repository	Description	Badges
Swiper	nolimits4web/Swiper	Mobile touch slider and framework with hardware accelerated transitions.
slick	kenwheeler/slick	The last carousel you'll ever need.
slidesJs	-	Is a responsive slideshow plug-in for JQuery(1.7.1+) with features like touch and CSS3 transitions
FlexSlider	woothemes/FlexSlider	An awesome, fully responsive jQuery slider plugin.
sly	darsain/sly	JavaScript library for one-directional scrolling with item based navigation support.
vegas	jaysalvat/vegas	A jQuery plugin to add beautiful fullscreen backgrounds to your webpages. It even allows Slideshows.
Sequence	IanLunn/Sequence	CSS animation framework for creating responsive sliders, presentations, banners, and other step-based applications.
reveal.js	hakimel/reveal.js	A framework for easily creating beautiful presentations using HTML.
impress.js	impress/impress.js	It's a presentation framework based on the power of CSS3 transforms and transitions in modern browsers and inspired by the idea behind prezi.com.
bespoke.js	bespokejs/bespoke	DIY Presentation Micro-Framework
Strut	tantaman/Strut	Strut - An Impress.js and Bespoke.js Presentation Editor
PhotoSwipe	dimsemenov/PhotoSwipe	JavaScript image gallery for mobile and desktop, modular, framework independent.
jcSlider	JoanClaret/jcSlider	A responsive slider jQuery plugin with CSS animations.
basic-jquery-slider	jcobb/basic-jquery-slider	Simple to use, simple to theme, simple to customise.
jQuery.adaptive-slider	creative-punch/jQuery.adaptive-slider	A jQuery plugin for a slider with adaptive colored figcaption and navigation.
slidr	bchanx/slidr	add some slide effects.
Flickity	metafizzy/flickity	Touch, responsive, flickable galleries.
Glide.js	jedrzejchalubek/glidejs	Responsive and touch-friendly jQuery slider. It's simple, lightweight and fast.
Embla Carousel	davidcetinkaya/embla-carousel	An extensible low level carousel for the web, written in TypeScript.

Range Sliders

Name	Repository	Description	Badges
Ion.RangeSlider	IonDen/ion.rangeSlider	Powerful and easily customizable range slider with many options and skin support.
jQRangeSlider	ghusse/jQRangeSlider	A JavaScript slider selector that supports dates.
noUiSlider	leongersen/noUiSlider	A lightweight, highly customizable range slider without bloat.
rangeslider.js	andreruffert/rangeslider.js	HTML5 input range slider element polyfill.

Form Widgets

Input

Name	Repository	Description	Badges
typeahead.js	twitter/typeahead.js	A fast and fully-featured autocomplete library.
tag-it	aehlke/tag-it	A jQuery UI plugin to handle multi-tag fields as well as tag suggestions/autocomplete.
At.js	ichord/At.js	Add GitHub like mentions autocomplete to your application.
Placeholders.js	jamesallardice/Placeholders.js	A JavaScript polyfill for the HTML5 placeholder attribute.
fancyInput	yairEO/fancyInput	Makes typing in input fields fun with CSS3 effects.
jQuery-Tags-Input	xoxco/jQuery-Tags-Input	Magically convert a simple text input into a cool tag list with this jQuery plugin.
vanilla-masker	BankFacil/vanilla-masker	A pure JavaScript mask input.
Ion.CheckRadio	IonDen/ion.checkRadio	jQuery plugin for styling checkboxes and radio-buttons. With skin support.
awesomplete	LeaVerou/awesomplete	Ultra lightweight, usable, beautiful autocomplete with zero dependencies. - https://projects.verou.me/awesomplete/

Calendar

Name	Repository	Description	Badges
pickadate.js	amsul/pickadate.js	The mobile-friendly, responsive, and lightweight jQuery date & time input picker.
bootstrap-datepicker	eternicode/bootstrap-datepicker	A datepicker for @twitter bootstrap forked from Stefan Petre's (of eyecon.ro), improvements by @eternicode.
Pikaday	dbushell/Pikaday	A refreshing JavaScript Datepicker — lightweight, no dependencies, modular CSS.
fullcalendar	fullcalendar/fullcalendar	Full-sized drag & drop event calendar (jQuery plugin).
rome	bevacqua/rome	A customizable date (and time) picker. Dependency free, opt-in UI.
Date Range Picker	dangrossman/daterangepicker	creates a dropdown menu from which a user can select a range of dates.
Duet Date Picker	duetds/date-picker	open source version of Duet Design System’s accessible date picker, WCAG 2.1 accessibility complaint
tui.calendar	nhn/tui.calendar	A JavaScript schedule calendar that is full featured. Now your service just got the customizable calendar.
Schedule-X	schedule-x/schedule-x	Material design event calendar. Features drag & drop, dark mode, multiple views and more.

Select

Name	Repository	Description	Badges
selectize.js	selectize/selectize.js	Selectize is the hybrid of a textbox and <select> box. It's jQuery based and it has autocomplete and native-feeling keyboard navigation; useful for tagging, contact lists, etc.
select2	select2/select2	a jQuery based replacement for select boxes. It supports searching, remote data sets, and infinite scrolling of results.
chosen	harvesthq/chosen	A library for making long, unwieldy select boxes more friendly.

File Uploader

Name	Repository	Description	Badges
jQuery-File-Upload	blueimp/jQuery-File-Upload	File Upload widget with multiple file selection, drag&drop support, progress bar, validation and preview images, audio and video for jQuery.
dropzone	enyo/dropzone	Dropzone is an easy to use drag'n'drop library. It supports image previews and shows nice progress bars.
flow.js	flowjs/flow.js	A JavaScript library providing multiple simultaneous, stable, fault-tolerant and resumable/restartable file uploads via the HTML5 File API.
fine-uploader	FineUploader/fine-uploader	Multiple file upload plugin with progress-bar, drag-and-drop, direct-to-S3 uploading.
FileAPI	mailru/FileAPI	A set of JavaScript tools for working with files. Multiupload, drag'n'drop and chunked file upload. Images: crop, resize and auto orientation by EXIF.
plupload	moxiecode/plupload	A JavaScript API for dealing with file uploads it supports features like multiple file selection, file type filtering, request chunking, client side image scaling and it uses different runtimes to achieve this such as HTML 5, Silverlight and Flash.
filepond	pqina/filepond	A JavaScript library that can upload anything you throw at it, optimizes images for faster uploads, and offers a great, accessible, silky smooth user experience.

Other

Name	Repository	Description	Badges
form	jquery-form/form	jQuery Form Plugin.
Garlic.js	guillaumepotier/Garlic.js	Automatically persist your forms' text and select field values locally, until the form is submitted.
Countable	RadLikeWhoa/Countable	A JavaScript function to add live paragraph-, word- and character-counting to an HTML element.
card	jessepollak/card	Make your credit card form better in one line of code.
stretchy	LeaVerou/stretchy	Form element autosizing, the way it should be.
analytics	davidwells/analytics	A lightweight, extendable analytics library designed to work with any third-party analytics provider to track page views, custom events, & identify users.
dat.GUI	dataarts/dat.gui	A lightweight gui controller for changing variables in JavaScript.

Tips

Name	Repository	Description	Badges
tipsy	jaz303/tipsy	Facebook-style tooltips plugin for jQuery.
opentip	enyo/opentip	An open source JavaScript tooltip based on the prototype framework.
qTip2	qTip2/qTip2	Pretty powerful tooltips.
tooltipster	iamceege/tooltipster	A jQuery tooltip plugin.
simptip	arashmanteghi/simptip	A simple CSS tooltip made with Sass.
toolbar	paulkinzett/toolbar	A tooltip style toolbar jQuery plugin
hint.css	chinchang/hint.css	A tooltip library in CSS for your lovely websites.

Modals and Popups

Name	Repository	Description	Badges
Magnific-Popup	dimsemenov/Magnific-Popup	Light and responsive lightbox script with focus on performance.
jquery-popbox	gristmill/jquery-popbox	jQuery PopBox UI Element.
jquery.avgrund.js	voronianski/jquery.avgrund.js	A jQuery plugin with new modal concept for popups.
vex	HubSpot/vex	A modern dialog library which is highly configurable and easy to style.
bootstrap-modal	jschr/bootstrap-modal	Extends the default Bootstrap Modal class. Responsive, stackable, ajax and more.
css-modal	drublic/css-modal	A modal built out of pure CSS.
jquery-popup-overlay	vast-engineering/jquery-popup-overlay	jQuery plugin for responsive and accessible modal windows and tooltips.
SweetAlert	t4t5/sweetalert	An awesome replacement for JavaScript's alert.
SweetAlert2	sweetalert2/sweetalert2	An awesome replacement for JavaScript's alert.
baguetteBox.js	feimosi/baguetteBox.js	Simple and easy to use lightbox script written in pure JavaScript.
colorbox	jackmoore/colorbox	A light-weight, customizable lightbox plugin for jQuery.
fancyBox	fancyapps/fancyBox	A tool that offers a nice and elegant way to add zooming functionality for images, html content and multi-media on your webpages.
swipebox	brutaldesign/swipebox	A touchable jQuery lightbox
jBox	StephanWagner/jBox	jBox is a powerful and flexible jQuery plugin, taking care of all your popup windows, tooltips, notices and more.
lightGallery	sachinchoolur/lightGallery	A customizable, modular, responsive, lightbox gallery plugin for jQuery.
keukenhof	Alexandrshy/keukenhof	Lightweight, no dependencies, accessibility enabled TypeScript library for creating modal windows.
screenfull.js	sindresorhus/screenfull.js	the JavaScript Fullscreen API, which lets you bring the page or any element into fullscreen. Smoothens out the browser implementation differences, so you don't have to.

Scroll

Name	Repository	Description	Badges
scrollMonitor	stutrek/scrollMonitor	A simple and fast API to monitor elements as you scroll.
headroom	WickyNilliams/headroom.js	Give your pages some headroom. Hide your header until you need it.
onepage-scroll	peachananr/onepage-scroll	Create an Apple-like one page scroller website (iPhone 5S website) with One Page Scroll plugin.
iscroll	cubiq/iscroll	iScroll is a high performance, small footprint, dependency free, multi-platform JavaScript scroller.
skrollr	Prinzhorn/skrollr	Stand-alone parallax scrolling library for mobile (Android + iOS) and desktop. No jQuery.
parallax	wagerfield/parallax	Parallax Engine that reacts to the orientation of a smart device.
stellar.js	markdalgleish/stellar.js	Parallax scrolling made easy.
plax	cameronmcefee/plax	jQuery powered parallaxing.
jparallax	stephband/jparallax	jQuery plugin for creating interactive parallax effect.
fullPage	alvarotrigo/fullPage.js	A simple and easy to use plugin to create fullscreen scrolling websites (also known as single page websites).
ScrollMenu	s-yadav/ScrollMenu	A new interface to replace old boring scrollbar.
Clusterize.js	NeXTs/Clusterize.js	Tiny vanilla JS plugin to display large data sets easily.
simpleParallax	geosigno/simpleParallax	Simple and tiny JavaScript library to add parallax animations on any images
rellax	dixonandmoe/rellax	Buttery smooth, super lightweight, vanilla javascript parallax library.
asscroll	ashthornton/asscroll	A hybrid smooth scroll setup that combines the performance gains of virtual scroll with the reliability of native scroll.
stroll	hakimel/stroll.js	A collection of CSS List scroll effects bind to dom through javascript.
locomotive-scroll	locomotivemtl/locomotive-scroll	Detects the elements in viewport and smooth scrolling with parallax.
elevator.js	tholman/elevator.js	Finally, a "back to top" button that behaves like a real elevator.

Menu

Name	Repository	Description	Badges
jQuery-menu-aim	kamens/jQuery-menu-aim	jQuery plugin to fire events when user's cursor aims at particular dropdown menu items. For making responsive mega dropdowns like Amazon's.
jQuery contextMenu	swisnl/jQuery-contextMenu	contextMenu manager.
Slideout	mango/slideout	A responsive touch slideout navigation menu for mobile web apps.
Slide and swipe	JoanClaret/slide-and-swipe-menu	A sliding swipe menu that works with touchSwipe library.
mmenu	FrDH/jQuery.mmenu	The best jQuery plugin for app look-alike on- and off-canvas menus with sliding submenus for your website and webapp.

Table/Grid

Name	Repository	Description	Badges
jTable	hikalkan/jtable	A jQuery plugin to create AJAX based CRUD tables.
DataTables	-	(jQuery plug-in) It is a highly flexible tool, based upon the foundations of progressive enhancement, and will add advanced interaction controls to any HTML table.
Tabulator	-	(jQuery plug-in) An extremely flexible library that create tables with a range of interactive features from any JSON data source or existing HTML table.
Bootstrap Table	-	An Extension to the popular Bootstrap framework for creating tables that fit the style of your site with no need for additional markup.
floatThead	mkoryak/floatThead	(jQuery plug-in) lock any table's header while scrolling within the body. Works on any table and requires no custom html or css.
Masonry	-	A cascading grid layout library.
Packery	-	A grid layout library that uses a bin-packing algorithm. Useable for draggable layouts.
Isotope	-	A filterable, sortable, grid layout library. Can implement Masonry, Packery, and other layouts.
flexboxgrid	kristoferjoseph/flexboxgrid	Grid based on CSS3 flexbox.

Frameworks

Name	Repository	Description	Badges
Semantic UI	-	UI Kit with lots of themes and elements.
w2ui	-	A set of jQuery plugins for front-end development of data-driven web applications.
fluidity	mrmrs/fluidity	The worlds smallest fully-responsive css framework.
Ink	sapo/Ink	An HTML5/CSS3 framework used at SAPO for fast and efficient website design and prototyping.
DataFormsJS	dataformsjs/dataformsjs	A minimal JavaScript Framework and standalone components for rapid development of sites and SPA's.
EHTML	Guseyn/EHTML	HTML Framework that allows you not to write JavaScript code.

Boilerplates

Name	Repository	Description	Badges
html5-boilerplate	h5bp/html5-boilerplate	A professional front-end template for building fast, robust, and adaptable web apps or sites.
mobile-boilerplate	h5bp/mobile-boilerplate	A front-end template that helps you build fast, modern mobile web apps.
webplate	chrishumboldt/webplate	An awesome front-end framework that lets you stay focused on building your site or app while remaining really easy to use.
Cerberus	TedGoas/Cerberus	A few simple, but solid patterns for responsive HTML emails. Even in Outlook.
full-page-intro-and-navigation	CodyHouse/full-page-intro-and-navigation	An intro page with a full width background image, a bold animated menu and an iOS-like blurred effect behind the navigation.
Fluid-Squares	crozynski/Fluid-Squares	A fluid grid of square units.
Mobile-First-RWD	bradfrost/Mobile-First-RWD	An example of a mobile-first responsive web design.
this-is-responsive	bradfrost/this-is-responsive	This Is Responsive.
npm run-scripts	addyosmani/9f10c555e32a8d06ddb0	Task automation with NPM run-scripts.
Wasp	wasp-lang/wasp	Wasp is a declarative domain-specific language for developing, building, and deploying modern Javascript full-stack web apps with less code.

Images

Name	Repository	Description	Badges
Drift	imgix/drift	Easily add "zoom on hover" functionality to your site's images. Lightweight, no-dependency JavaScript.
Magnificent.js	AndersDJohnson/magnificent.js	Zoom responsively, images & more, w/ jQuery.
Panolens.js	pchen66/panolens.js	Panolens.js is an event-driven and WebGL based panorama viewer. Lightweight and flexible

Gesture

Name	Repository	Description	Badges
hammer.js	hammerjs/hammer.js	A JavaScript library for multi-touch gestures.
touchemulator	hammerjs/touchemulator	Emulate touch input on your desktop.
Dragula	bevacqua/dragula	Drag and drop so simple it hurts.

Maps

Name	Repository	Description	Badges
Leaflet	Leaflet/Leaflet	JavaScript library for mobile-friendly interactive maps.
Cesium	AnalyticalGraphicsInc/cesium	Open Source WebGL virtual globe and map engine.
gmaps	HPNeo/gmaps	The easiest way to use Google Maps.
polymaps	simplegeo/polymaps	A free JavaScript library for making dynamic, interactive maps in modern web browsers.
kartograph.js	kartograph/kartograph.js	Open source JavaScript renderer for Kartograph SVG maps.
mapbox.js	mapbox/mapbox.js	Mapbox JavaScript API, a Leaflet Plugin.
jqvmap	manifestinteractive/jqvmap	jQuery Vector Map Library.
OpenLayers3	-	A high-performance, feature-packed library for all your mapping needs.
H3js	uber/h3	Hexagonal hierarchical geospatial indexing system ported to javascript by Uber for geospatial visualization.

Video/Audio

Name	Repository	Description	Badges
prettyembed.js	mike-zarandona/prettyembed.js	Prettier embeds for your YouTubes - with nice options like high-res preview images, advanced customization of embed options, and optional FitVids support.
Play-em JS	adrienjoly/playemjs	Play'em is a JavaScript component that manages a music/video track queue and plays a sequence of songs by embedding several players in a HTML DIV including Youtube, Soundcloud and Vimeo.
polyplayer	Acconut/polyplayer	Rule YouTube, Soundcloud and Vimeo player with one API.
flowplayer	flowplayer/flowplayer	The HTML5 video player for the web
mediaelement	johndyer/mediaelement	HTML5 or
SoundJS	CreateJS/SoundJS	A library to make working with audio on the web easier. It provides a consistent API for playing audio in different browsers.
video.js	videojs/video.js	Video.js - open source HTML5 & Flash video player.
FitVids.js	davatron5000/FitVids.js	A lightweight, easy-to-use jQuery plugin for fluid width video embeds.
Ion.Sound	IonDen/ion.sound	Simple sounds on any web page.
photobooth-js	WolframHempel/photobooth-js	A widget that allows users to take their avatar pictures on your site.
clappr	clappr/clappr	An extensible media player for the web http://clappr.io
ts-audio	EvandroLG/ts-audio	an agnostic and easy-to-use library to work with the AudioContext API.
AmplitudeJS	-	Open Source HTML5 Web Audio Library. Design your web audio player, the way you want. No dependencies required.
ractive-player	ysulyma/ractive-player	A library for making interactive videos in React.js.
ffmpeg.js	Kagami/ffmpeg.js	FFmpeg optimized for in-browser use: minimal size for faster loading, asm.js, performance tunings, etc.
flv.js	bilibili/flv.js	An HTML5 Flash Video (FLV) Player written in pure JavaScript without Flash.
hls.js	video-dev/hls.js	A JavaScript library that implements an HTTP Live Streaming client. It relies on HTML5 video and MediaSource Extensions for playback.

Typography

Name	Repository	Description	Badges
FlowType.JS	simplefocus/FlowType.JS	Web typography at its finest: font-size and line-height based on element width.
BigText	zachleat/BigText	jQuery plugin, calculates the font-size and word-spacing needed to match a line of text to a specific width.
circletype	peterhry/circletype	A jQuery plugin that lets you curve type on the web.
slabText	freqDec/slabText	A jQuery plugin for producing big, bold & responsive headlines.
simple-text-rotator	peachananr/simple-text-rotator	Add a super simple rotating text to your website with little to no markup.
novacancy.js	chuckyglitch/novacancy.js	Text Neon Golden effect jQuery plug-in.
jquery-responsive-text	ghepting/jquery-responsive-text	Make your text sizing responsive!
FitText.js	davatron5000/FitText.js	A jQuery plugin for inflating web type.
Lettering.js	davatron5000/Lettering.js	A lightweight, easy to use JavaScript <span> injector for radical Web Typography.

Animations

Name	Repository	Description	Badges
velocity	julianshapiro/velocity	Accelerated JavaScript animation.
jquery.transit	rstacruz/jquery.transit	Super-smooth CSS3 transformations and transitions for jQuery.
bounce.js	tictail/bounce.js	Create tasty CSS3 powered animations in no time.
GreenSock-JS	greensock/GreenSock-JS	High-performance HTML5 animations that work in all major browsers.
TransitionEnd	EvandroLG/transitionEnd	TransitionEnd is an agnostic and cross-browser library to work with transitioned event.
Dynamic.js	michaelvillar/dynamics.js	JavaScript library to create physics-based CSS animations.
the-cube	pstadler/the-cube	The Cube is an experiment with CSS3 transitions.
Effeckt.css	h5bp/Effeckt.css	A Performant Transitions and Animations Library.
animate.css	daneden/animate.css	A cross-browser library of CSS animations. As easy to use as an easy thing.
textillate	jschr/textillate	A simple plugin for CSS3 text animations.
move.js	visionmedia/move.js	CSS3 backed JavaScript animation framework.
animatable	LeaVerou/animatable	One property, two values, endless possibilities.
shuffle-images	peachananr/shuffle-images	The Simplest Way to shuffle through images in a Creative Way.
smoothState.js	miguel-perez/smoothState.js	Unobtrusive page transitions with jQuery.
Anime.js	-	A JavaScript animation engine.
Mo.js	-	Motion graphics toolbelt for the web.
particles.js	VincentGarreau/particles.js	A lightweight JavaScript library for creating particles.
tsParticles	matteobruni/tsparticles	A new and improved version of particles.js with bug fixes and many new features.
particles-bg	lindelof/particles-bg	A lightweight React particles animation background component.
barbajs	barbajs/barba	It helps you create fluid and smooth transitions between your website's pages.
typicaljs	camwiegert/typical	Animated typing in ~400 bytes 🐡 of JavaScript
AutoAnimate	-	Add motion to your apps with a single line of code.

Image Processing

Name	Repository	Description	Badges
lena.js	davidsonfellipe/lena.js	A Library for image processing with filters and util functions.
pica	nodeca/pica	High quality image resize (with fast Lanczos filter, implemented in pure JS).
cropper	fengyuanchen/cropper	A simple jQuery image cropping plugin.

ES6

Name	Repository	Description	Badges
es6features	lukehoban/es6features	Overview of ECMAScript 6 features.
es6-features	rse/es6-features	ECMAScript 6: Feature Overview & Comparison.
es6-cheatsheet	DrkSephy/es6-cheatsheet	ES2015 [ES6] cheatsheet containing tips, tricks, best practices and code snippets.
ECMAScript 6 compatibility table	-	Compatibility tables for all ECMAScript 6 features on a variety of environments.
Babel (Formerly 6to5)	babel/babel	Turn ES6+ code into vanilla ES5 with no runtime.
Traceur compiler	google/traceur-compiler	ES6 features > ES5. Includes classes, generators, promises, destructuring patterns, default parameters & more.

Generators

Name	Repository	Description	Badges
Gatsby.js	gatsbyjs/gatsby	React-based static site generator.
Gridsome	gridsome/gridsome	Vue-powered static site generator.
Docusaurus	facebook/docusaurus	React-based static site generator by Facebook, ideal for content-centric websites.
Next.js	vercel/next.js	React powered static site generator, and they say "All the tools you need to make the Web. Faster.".
Lume	lumeland/lume	Static site generator for Deno.
Astro	withastro/astro	The web framework for content-driven websites.

SDK

Name	Repository	Description	Badges
javascript-sdk-design	huei90/javascript-sdk-design	JavaScript SDK design guide extracted from work and personal experience.
Spotify SDK	loverajoel/spotify-sdk	Entity oriented SDK to work with the Spotify Web API.
Square Node.js SDK	square/connect-nodejs-sdk	JavaScript client library for payments and other Square APIs.
OpenAI SDK	openai/openai-node	Official JavaScript / TypeScript library for the OpenAI API.

Full Text Search

Name	Repository	Description	Badges
lunr	olivernn/lunr.js	Library for use in the browser and It indexes JSON documents and provides a simple search interface for retrieving documents that best match text queries.
flexsearch	nextapps-de/flexsearch	It is a Next-Generation full text search library for Browser and Node.js.
Elasticlunr	weixsong/elasticlunr.js	This library is based on lunr.js, but more flexible and customized.

ORM

Name	Repository	Description	Badges
Prisma	prisma/prisma	Next-generation ORM for Node.js & TypeScript | PostgreSQL, MySQL, MariaDB, SQL Server, SQLite, MongoDB and CockroachDB.
Sequelize	sequelize/sequelize	Feature-rich ORM for modern Node.js and TypeScript | PostgreSQL, MySQL, MariaDB, SQLite, MS SQL Server, Snowflake, Oracle DB...
Mongoose	Automattic/mongoose	MongoDB object modeling designed to work in an asynchronous environment.
TypeORM	typeorm/typeorm	ORM for TypeScript and JavaScript, Works in NodeJS, Browser, Ionic, Cordova and Electron platforms.
Drizzle ORM	drizzle-team/drizzle-orm	Headless TypeScript ORM with a head. Runs on Node, Bun and Deno.
Kysely	kysely-org/kysely	A type-safe typescript SQL query builder.
Knex	knex/knex	A query builder for PostgreSQL, MySQL, CockroachDB, SQL Server, SQLite3 and Oracle, designed to be flexible, portable, and fun to use.
MikroORM	mikro-orm/mikro-orm	TypeScript ORM for Node.js based on Data Mapper, Unit of Work and Identity Map patterns.

WebSockets

Name	Repository	Description	Badges
Socket.io	socketio/socket.io	The most widely used WebSocket library for real-time applications. Supports auto-reconnection, rooms, and fallbacks (e.g., polling).
ws	websockets/ws	Simple to use, blazing fast and thoroughly tested WebSocket client and server for Node.js.

Misc

Name	Repository	Description	Badges
echo	toddmotto/echo	Lazy-loading images with data-* attributes.
picturefill	scottjehl/picturefill	A responsive image polyfill for <picture>, srcset, sizes.
platform.js	bestiejs/platform.js	A platform detection library that works on nearly all JavaScript platforms.
json3	bestiejs/json3	A modern JSON implementation compatible with nearly all JavaScript platforms.
Logical Or Not	-	A game about JavaScript specificities.
BitSet.js	infusion/BitSet.js	A JavaScript Bit-Vector implementation.
spoiler-alert	joshbuddy/spoiler-alert	SPOILER ALERT! A happy little jquery plugin to hide spoilers on your site.
jquery.vibrate.js	illyism/jquery.vibrate.js	Vibration API Wrappers
list.js	javve/list.js	Adds search, sort, filters and flexibility to tables, lists and various HTML elements. Built to be invisible and work on existing HTML.
mixitup	patrickkunka/mixitup	MixItUp - A Filter & Sort Plugin.
grid	hootsuite/grid	Drag and drop library for two-dimensional, resizable and responsive lists.
jquery-match-height	liabru/jquery-match-height	a responsive equal heights plugin for jQuery.
SurveyJS	surveyjs/survey-library	SurveyJS is a JavaScript Survey and Form Library. https://surveyjs.io/
Array Explorer	sdras/array-explorer	and Object Explorer - Resources to help figure out what native JavaScript method would be best to use at any given time.
Clipboard.js	-	"Copy to clipboard" without Flash or use of Frameworks.
ky	sindresorhus/ky	Tiny and elegant HTTP client based on the browser Fetch API.
Fcal	5anthosh/fcal	Math expression evaluator.
emoji-button	joeattardi/emoji-button	Vanilla JavaScript emoji picker component.
iooxa	iooxa/article	Components for interactive scientific writing, reactive documents and explorable explanations.
Idyll	idyll-lang/idyll	Create explorable explanations and interactive storytelling essays. Can be embedded in HTML.
javascript-algorithms	trekhleb/javascript-algorithms	Algorithms and data structures implemented in JavaScript with explanations and links to further readings.
FingerprintJS	fingerprintjs/fingerprintjs	Makes a visitor identifier from a browser fingerprint that stays the same in incognito mode and when browser data is purged.
Peg.js	pegjs/pegjs	A simple parser generator for JavaScript that produces fast parsers with excellent error reporting. Usable from your browser, from the command line, or via JavaScript API.
lune	ryanseys/lune	Library to calculate the phases of the moon accurately.
jsemu	fcambus/jsemu	A list of emulators written in the JavaScript programming language.

Worth Reading

Name	Repository	Description	Badges
You Don't Know JS	getify/You-Dont-Know-JS	Possibly the best book written on modern JavaScript, completely readable online for free, or can be bought to support the author.
braziljs/js-the-right-way	braziljs/js-the-right-way	An easy-to-read, quick reference for JS best practices, accepted coding standards, and links around the Web.
JSbooks	revolunet/JSbooks	Directory of free JavaScript ebooks.
Superhero.js	-	A collection of resources about creating, testing and maintaining a large JavaScript code base.
SJSJ	KittyGiraudel/SJSJ	Simplified JavaScript Jargon is a community-driven attempt at explaining the loads of buzzwords making the current JavaScript ecosystem in a few simple words.
How to Write an Open Source JavaScript Library	sarbbottam/write-an-open-source-js-lib	A comprehensive guide through a set of steps to publish a JavaScript open source library.
JavaScript Tutorials	-	Learn Javascript online from a diverse range of user ranked online tutorials.
Functional-Light JavaScript	getify/Functional-Light-JS	Pragmatic, balanced FP in JavaScript.
Clean Code JavaScript	ryanmcdermott/clean-code-javascript	Clean Code concepts adapted for JavaScript.
Roadmap.sh JavaScript Roadmap	-	Learn JavaScript from a community sourced learning roadmap.

Other Awesome Lists

Name	Repository	Description	Badges
sotayamashita/awesome-css	sotayamashita/awesome-css
emijrp/awesome-awesome	emijrp/awesome-awesome
bayandin/awesome-awesomeness	bayandin/awesome-awesomeness
sindresorhus/awesome	sindresorhus/awesome
jnv/list	jnv/lists
gianarb/angularjs	gianarb/awesome-angularjs
peterkokot/awesome-dojo	peterkokot/awesome-dojo
addyosmani/es6-tools	addyosmani/es6-tools
ericdouglas/ES6-Learning	ericdouglas/ES6-Learning
obetomuniz/awesome-webcomponents	obetomuniz/awesome-webcomponents
willianjusten/awesome-svg	willianjusten/awesome-svg
davidsonfellipe/awesome-wpo	davidsonfellipe/awesome-wpo
instanceofpro/awesome-backbone	sadcitizen/awesome-backbone
enaqx/awesome-react	enaqx/awesome-react
bolshchikov/js-must-watch	bolshchikov/js-must-watch
peterkokot/awesome-jquery	peterkokot/awesome-jquery
davidyezsetz/you-might-not-need-jquery-plugins	davidyezsetz/you-might-not-need-jquery-plugins
MaximAbramchuck/awesome-interviews	MaximAbramchuck/awesome-interview-questions
denolib/awesome-deno	denolib/awesome-deno
apvarun/awesome-bun	apvarun/awesome-bun

Contributing

Contributions welcome! Read the contribution guidelines first.

License

To the extent possible under law, chencheng has waived all copyright and related or neighboring rights to this work.