JS libraries

Web Dev frameworks

• Next.js - Framework for server-rendered or statically-exported React apps.

• San - Flexible JavaScript component framework.

• hapi - Rich framework for building applications and services.

• Koa - Smaller, more expressive, and more robust foundation for web applications and APIs.

• Umi - Pluggable enterprise-level react application framework.

• Vue.js - Progressive JavaScript Framework.

• Mithril - Modern client-side Javascript framework for building Single Page Applications.

• Solid - Declarative, efficient, and flexible JavaScript library for building user interfaces.

• Neutrino dev

• Alpine.js - Rugged, minimal framework for composing JavaScript behavior in your markup.

• After.js - Next.js-like framework for server-rendered React apps built with React Router 4.

• Blitz - Framework for building monolithic, full-stack, serverless React apps with zero data-fetching and zero client-side state management.

Animation

• Anime.js - JavaScript animation engine.

• popmotion - Functional, reactive animation library.

• impress.js - Presentation framework based on the power of CSS3 transforms and transitions.

• Pts - Library for visualization and creative-coding.

• lax.js - Simple & light weight (<2kb gzipped) vanilla JS plugin to create smooth & beautiful animations when you scroll.

• Flipping - Library (and collection of adapters) for implementing FLIP transitions.

• Ola - Smooth animation library for interpolating numbers.

• react-spring - Spring physics based React animation library.

• FAT - Web's fastest and most lightweight animation tool.

• React Easy Flip - Lightweight React library for smooth FLIP animations.

CLI

• qoa - Minimal interactive command-line prompts.

State management

• Mutik - Tiny (495B) immutable state management library based on Immer.

• Overmind - Frictionless state management.

• Storeon - Tiny event-based Redux-like state manager for React and Preact.

• Overstated - React state management library that's delightful to use, without sacrificing performance or scalability.

• Effector - Reactive state manager. (Awesome)

• Akita - State Management Tailored-Made for JS Applications.

• Observable Store - Provides a simple way to manage state in Angular, React, Vue.js and other front-end applications.

• Cerebral - Declarative state and side effects management solution for popular JavaScript frameworks.

• Hooksy - State managment solution based on react hooks.

• React Easy State - Simple React state management. Made with ❤️ and ES6 Proxies.

• wana - Easy observable state for React.

API bindings

• NodeJS Instagram private API client

React

• state-machines-in-react - Small React, xstate and Framer Motion demo.

Other

• micro github - Tiny microservice that makes adding authentication with GitHub to your application easy.

• pico.js - Face detection library in 200 lines of JavaScript.

• mdxc - Use React Components within Markdown.

• ReLaXeD - Create PDF documents using web technologies. (Examples)

• Dragula - Drag and drop so simple it hurts.

• Hammer.js - Multi-touch gestures.

• emittery - Simple and modern async event emitter.

• Xstate - State machines and statecharts for the modern web.

• xstate-component-tree - Build a tree of UI components based on your state chart.

• virtual-scroller - Maps a provided set of JavaScript objects onto DOM nodes, and renders only the DOM nodes that are currently visible, leaving the rest "virtualized".

• jSPDF - Client-side JavaScript PDF generation for everyone.

• ForgJS - JavaScript lightweight object validator.

• faker.js - Generate massive amounts of realistic fake data in Node.js and the browser.

• arg - Simple argument parsing.

• fbt - JavaScript Internationalization Framework.

• fuzzysearch - Tiny and blazing-fast fuzzy search in JavaScript.

• normalizr - Normalizes nested JSON according to a schema.

• FBJS - Collection of utility libraries used by other Facebook JS projects.

• Uppy - Next open source file uploader for web browsers.

• ScrollReveal - Animate elements as they scroll into view.

• Shiny - Add shiny reflections to text, backgrounds, and borders on devices that support the DeviceMotion event.

• Hotkey Behavior - Trigger a action on element when keyboard hotkey is pressed.

• Bili - Makes it easier to bundle JavaScript libraries.

• Memoizee - Complete memoize/cache solution for JavaScript.

• Immer - Create the next immutable state by mutating the current one.

• FlexSearch - Web's fastest and most memory-flexible full-text search library with zero dependencies.

• cofx - Node and javascript library that helps developers describe side-effects as data in a declarative, flexible API.

• Mercury Parser - Extracts the bits that humans care about from any URL you give it.

• Refract - Harness the power of reactive programming to supercharge your components.

• MemJS - Memcache client for node using the binary protocol and SASL authentication.

• memfs - In-memory filesystem with Node's API.

• Accounts - Fullstack authentication and accounts-management for GraphQL and REST.

• Cleave.js - Format input text content when you are typing...

• Unistore - Tiny 350b centralized state container with component bindings for Preact & React.

• Ramda - Practical functional library for JavaScript programmers.

• fromfrom - JS library written in TS to transform sequences of data from format to another.

• Editor.js - Block-styled editor with clean JSON output.

• ijk - Transforms arrays into virtual DOM trees.

• Cleave.js - Format input text content when you are typing.

• Oboe.js - Streaming approach to JSON. Oboe.js speeds up web applications by providing parsed objects before the response completes.

• Choices.js - Vanilla JS customisable select box/text input plugin.

• Shepherd - Guide your users through a tour of your app.

• object-cull - Create a copy of an object with just the bits you actually need.

• Sigma - JavaScript library dedicated to graph drawing.

• interact.js - JavaScript drag and drop, resizing and multi-touch gestures with inertia and snapping for modern browsers.

• flru - Tiny (215B) and fast Least Recently Used (LRU) cache.

• Yup - Dead simple Object schema validation.

• Lerna - Tool for managing JavaScript projects with multiple packages.

• WikiJs - Wikipedia Interface for Node.js.

• virtual-audio-graph - Library for declaratively manipulating the Web Audio API.

• deep-object-diff - Deep diffs two objects, including nested structures of arrays and objects, and returns the difference.

• Snarkdown - Snarky 1kb Markdown parser written in JavaScript.

• Terser - JavaScript parser, mangler, optimizer and beautifier toolkit for ES6+.

• AppAuthJS - JavaScript client SDK for communicating with OAuth 2.0 and OpenID Connect providers.

• expr-eval - Mathematical expression evaluator in JavaScript.

• robust-predicates - Fast robust predicates for computational geometry in JavaScript.

• Sanctuary - JavaScript functional programming library inspired by Haskell and PureScript.

• modali - Delightful modal dialog component for React, built from the ground up to support React Hooks.

• Tweakpane - Compact GUI for fine-tuning parameters and monitoring value changes.

• crocks - Collection of well known Algebraic Data Types for your utter enjoyment.

• Just - Library of zero-dependency npm modules that do just do one thing.

• nanoid - Tiny (139 bytes), secure, URL-friendly, unique string ID generator for JavaScript.

• debug - Tiny JavaScript debugging utility modelled after Node.js core's debugging technique. Works in Node.js and web browsers.

• roughViz.js - Reusable JavaScript library for creating sketchy/hand-drawn styled charts in the browser.

• Mitt - Tiny 200 byte functional event emitter / pubsub.

• RequireJS - File and module loader for JavaScript.

• Zero - 3D graphics rendering pipeline. Implemented in JavaScript. Run in a terminal.

• xstate-viz - Visualize state charts.

• htmr - Simple and lightweight (< 2kB) HTML string to React element conversion library.

• react-jsx-parser - React component which can parse JSX and output rendered React Components.

• Static Land - Specification for common algebraic structures in JavaScript based on Fantasy Land.

• sorted-queue - Sorted queue, based on an array-backed binary heap.

• polendina - Non-UI browser testing for JavaScript libraries from the command-line.

• agadoo - Check whether a package is tree-shakeable.

• Fielder - React form library which adapts to change.

• lemonad - Functional programming library for JavaScript. An experiment in elegant JS.

• Mockttp - Lets you quickly & reliably test HTTP requests & responses in JavaScript, in both Node and browsers.

• Flowy - Minimal javascript library to create flowcharts.

• d3-dag - Layout algorithms for visualizing directed acyclic graphs.

• renature - Physics-based animation library for React focused on modeling natural world forces.

• Morphism - Do not repeat anymore your objects transformations.

• Tonic - Stable, Minimal, Auditable, Build-Tool-Free, Low Profile Component Framework.

• Quiet.js - Transmit data with sound using Web Audio -- Javascript binding for libquiet.

• Bindery - Library for designing printable books with HTML and CSS.

• Wretch - Tiny wrapper built around fetch with an intuitive syntax.

• Virt.js - Free collection of useful standard devices, that can be used to power various engine that makes use of the exposed interfaces.

• Path-to-RegExp - Turn a path string such as /user/:name into a regular expression.

• Bacon.js - Functional reactive programming library for TypeScript and JavaScript.

• GGEditor - Visual graph editor based on G6 and React.

• fsm-as-promised - Finite state machine library using ES6 promises.

• x-spreadsheet - Web-based JavaScript（canvas）spreadsheet.

• IsoCity - Isometric city builder in JavaScript.

• car - Simple 2d car physics with JavaScript. (HN)

• Picomatch - Blazing fast and accurate glob matcher written in JavaScript.

• react-isomorphic-data - Easily fetch data in your React components, with similar APIs to react-apollo.

• klona - Tiny (228B) and fast utility to "deep clone" Objects, Arrays, Dates, RegExps, and more.

• ScrollMagic - JavaScript library for magical scroll interactions.

• GoJS - JavaScript and TypeScript library for building interactive diagrams and graphs.

• Rete - JavaScript framework for visual programming and creating node editor. (HN)

• Pre3d - JavaScript 3d rendering engine.

• dancer.js - High-level audio API, designed to make sweet visualizations.

• model-viewer - Easily display interactive 3D models on the web and in AR.

• Spars - General toolkit for creating interactive web experiences.

• NeuroJS - JavaScript deep learning and reinforcement learning library.

• Hareactive - Purely functional reactive programming library.

• Mirage JS - Client-side server to develop, test and prototype your JavaScript app.

• dfa - State machine compiler with regular expression style syntax.

• Jtree - Tree Notation TypeScript/Javascript library.

• Hydra - Livecoding networked visuals in the browser.

• p-queue - Promise queue with concurrency control.

• gsheets - Get public Google Sheets as plain JavaScript/JSON.

• alga-ts - Algebraic graphs implementation in TypeScript.

• Chart.js - Simple HTML5 Charts using the tag. (Awesome)

• on-change - Watch an object or array for changes.

• clean-set - Deep assignment alternative to the object spread operator and Object.assign.

• Search Query Syntax Parser

• Uppload - Better JavaScript image uploader with 30+ plugins.

• pino - Super fast, all natural JSON logger.

• Orbit - Composable data framework for ambitious web applications.

• panzoom - Universal pan and zoom library (DOM, SVG, Custom).

• intl-tel-input - JavaScript plugin for entering and validating international telephone numbers.

• three.js - JavaScript 3D library.

• shortid - Short id generator. Url-friendly. Non-predictable. Cluster-compatible.

• styx - Derives a control flow graph from a JavaScript AST.

• Crossfilter - JavaScript library for exploring large multivariate datasets in the browser.

• SiriWave - Apple Siri wave-form replicated in a JS library.

• Shades - Lodash-inspired lens-like library for Javascript.

• mxGraph - Fully client side JavaScript diagramming library.

• cacache - Node.js library for managing local key and content address caches.

• enhanced-resolve - Offers an async require.resolve function. It's highly configurable.

• notevil - Evalulate javascript like the built-in javascript eval() method but safely.

• react-digraph - Library for creating directed graph editors.

• bent - Functional JS HTTP client (Node.js & Fetch) w/ async await.

• CLUI - Collection of JavaScript libraries for building command-line interfaces with context-aware autocomplete.

• cosha - Colorful shadows for your images.

• Rambda - Faster and smaller alternative to Ramda.

• MathJax - Open-source JavaScript display engine for LaTeX, MathML, and AsciiMath notation that works in all modern browsers.

• Litepicker - Date range picker - lightweight, no dependencies.

• core-js - Modular standard library for JavaScript.

• timeago.js - Nano library (less than 2 kb) used to format datetime with *** time ago statement. eg: '3 hours ago'.

• Serialize JavaScript - Serialize JavaScript to a superset of JSON that includes regular expressions, dates and functions.

• Tippy.js - Tooltip, popover, dropdown, and menu library.

• howler.js - JavaScript audio library for the modern web.

• date-fns - Modern JavaScript date utility library.

• Midi - Convert MIDI into Tone.js-friendly JSON.

• face-api.js - JavaScript API for face detection and face recognition in the browser and nodejs with tensorflow.js.

• Spotlight - Search widget for your web API.

• Fuse - Lightweight fuzzy-search, in JavaScript.

• Xterm.js - Terminal for the web.

• Change Case - Convert strings between camelCase, PascalCase, Capital Case, snake_case and more.

• ChronoGraph - Reactive, graph-based, computation engine.

• Sprotty - Diagramming framework for the web.

• prerender.js - Loads pages quickly on any browser.

• on-finished - Execute a callback when a request closes, finishes, or errors.

• ColorFns - Modern JavaScript color utilities library.

• grapheme-splitter - JavaScript library that breaks strings into their individual user-perceived characters.

• Web Animations - JavaScript implementation of the Web Animations API.

• p-limit - Run multiple promise-returning & async functions with limited concurrency.

• Highcharts JS - JavaScript charting library based on SVG.

• μPlot - Small, fast chart for time series, lines, areas, ohlc & bars.

• Baobab - JavaScript & TypeScript persistent and optionally immutable data tree with cursors.

• emoji-regex - Regular expression to match all Emoji-only symbols as per the Unicode Standard.

• MerkleTree.js - Construct Merkle Trees and verify proofs in JavaScript.

• Snabbdom - Virtual DOM library with focus on simplicity, modularity, powerful features and performance.

• Thwack - Tiny modern data fetching solution.

• Regenerate - Generate JavaScript-compatible regular expressions based on a given set of Unicode symbols or code points.

• Crank.js - Write JSX-driven components with functions, promises and generators. (Article) (Reddit) (HN)

• redaxios - Axios API, as an 800 byte Fetch wrapper.

• Math.js - Extensive math library for JavaScript and Node.js.

• pixelmatch - Smallest, simplest and fastest JavaScript pixel-level image comparison library.

• quilt - Loosely related set of packages for JavaScript / TypeScript projects at Shopify.

• jsondiffpatch - Diff & patch JavaScript objects.

• RVal - Minimalistic transparent reactive programming library.

• orbit-controls - Generic controls for orbiting a target in 3D.

• estree-walker - Traverse an ESTree-compliant AST.

• Jitsi Meet API library - Can use Jitsi Meet API to create Jitsi Meet video conferences with a custom GUI.

• isomer - Simple isometric graphics library for HTML5 canvas.

• Schema to Yup schema

Links

• NPM - Node package manager registry.

• Awesome WebAudio

• Awesome XState