Awesome JS

A curated collection of awesome JavaScript libraries, tools, runtimes, resources, and shiny things — across browser, Node.js, Deno, Bun, edge/serverless, desktop, and mobile.

Scope: anything primarily built for JavaScript/TypeScript ecosystems (not just browser-side).

• Awesome JS
  • Runtimes
  • Package Managers
  • Monorepo & Workspace Tools
  • Module Systems
  • Build Tools
    • Transpilers
    • Bundlers
    • Minimizers
  • Type Checking & Validation
  • Testing
    • Test Runners
    • Assertion & Mocking
    • E2E / Browser Automation
    • Coverage
  • Code Quality
  • Documentation
  • Frontend
    • UI Frameworks
    • State Management
    • Data Visualization
    • Editors
    • Animations
    • Maps
  • Backend
    • Web Frameworks
    • API Clients & Data Fetching
    • Authentication
    • ORM & Databases
    • Queues & Jobs
    • WebSockets
    • CMS
  • Utilities
    • Files
    • Functional Programming
    • Reactive Programming
    • Data Structures
    • Date & Time
    • String
    • Number
    • Storage
    • Color
    • I18n & L10n
    • Control Flow
    • Routing
    • RegExp
    • Security
    • Logging
    • Benchmarking
  • Cross-Platform
    • CLI
    • Desktop Apps
    • Mobile Apps
  • AI & ML
  • Generative AI
  • Articles & Posts
• Worth Reading
• Other Awesome Lists
• Contributing
• License

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Runtimes

Where JavaScript runs.

• Node.js - Server-side JavaScript runtime.
• Deno - Secure runtime with modern tooling built-in.
• Bun - Fast runtime + bundler + package manager.
• Cloudflare Workers - Edge/serverless JavaScript runtime.
• Electron - Build cross-platform desktop apps with JavaScript.
• React Native - Build native mobile apps with JavaScript/TypeScript.

Package Managers

Host libraries and provide tools for fetching and packaging them.

• npm - Package manager for JavaScript.
• yarn - Fast, reliable dependency management.
• pnpm - Fast, disk space efficient package manager.
• bun - Runtime + package manager.
• jspm - Package management & import maps tooling.

Legacy / historical

• Bower - Legacy front-end package manager.
• component - Client package management for building web apps.
• Ender - The no-library library.

Monorepo & Workspace Tools

Manage multiple packages/apps in one repo.

• Nx - Smart, fast monorepos for JS/TS.
• Turborepo - High-performance build system for monorepos.
• Lerna - Monorepo tooling (often combined with npm/yarn/pnpm workspaces).
• Changesets - Versioning + changelogs for monorepos.
• Bit - Create, find, and reuse components across apps.

Module Systems

How code is loaded (ESM/CJS + loaders).

• ES Modules - Standard module system for modern JS.
• SystemJS - Dynamic module loader for browsers and Node.
• RequireJS - AMD module loader.
• browserify - Bundle Node-style require() for browsers.

Build Tools

Transpilers

Convert modern JS/TS syntax into target environments.

• SWC - Fast compiler platform (JS/TS).
• Babel - JavaScript compiler.

Bundlers

Bundle modules and assets.

• Vite - Modern dev server + bundler.
• webpack - Mature bundler for complex apps.
• Rollup - Great for libraries (ESM-first).
• Parcel - Zero-config bundler.
• esbuild - Extremely fast bundler/transpiler.
• Microbundle - Zero-config bundler for tiny modules.
• FuseBox - A bundler that does it right.
• Snowpack - Modern dev/build tool (historically popular).
• bundlephobia - Quick npm package size checker.

Minimizers

Minify JS for production.

• Terser - Minifier for ES6+.
• UglifyJS - Classic minifier (legacy for modern syntax).

Type Checking & Validation

• TypeScript - Typed superset of JavaScript.
• Flow - Static type checker for JavaScript.
• Zod - TypeScript-first schema validation.
• Yup - Schema builder and validator.
• io-ts - Runtime types + decoding.
• Ajv - Fast JSON Schema validator.

Testing

Test Runners

• Vitest - Fast unit test framework powered by Vite.
• Jest - Painless JavaScript unit testing.
• Mocha - Flexible test framework for Node and browser.
• AVA - Futuristic JavaScript test runner.
• Tape - Tap-producing test harness.
• QUnit - Easy-to-use unit testing framework.

Assertion & Mocking

• Chai - BDD/TDD assertion library.
• Sinon - Spies, stubs, and mocks.
• Testing Library - Test UI the way users interact.

E2E / Browser Automation

• Playwright - Automate Chromium/Firefox/WebKit.
• Puppeteer - Headless Chrome/Chromium automation.
• Cypress - End-to-end testing framework.
• TestCafe - Automated browser testing.
• WebdriverIO - Node.js browser/mobile automation.

Coverage

• Istanbul / nyc - Coverage reporting.
• c8 - Coverage using V8’s built-in coverage.

Code Quality

Format, lint, and keep code healthy.

• ESLint - Pluggable linting utility.
• Prettier - Opinionated formatter.
• Biome - Fast formatter + linter (JS/TS).
• Standard - JavaScript Standard Style.
• Husky - Git hooks made easy.
• lint-staged - Run linters on staged files.

Documentation

Write and publish docs, API refs, and guides.

• DevDocs - Fast API documentation browser.
• Docusaurus - Documentation site generator.
• VitePress - Vite-powered docs.
• Docsify - Docs site without a build step.
• Storybook - UI component workshop + docs.
• typedoc - TypeScript API documentation.

Frontend

UI Frameworks

• React - UI library.
• Vue - Progressive framework.
• Svelte - Compiler-based UI framework.
• Angular - Full-featured framework (TypeScript).
• Preact - Fast, small React alternative.
• Solid - Fine-grained reactivity.
• Alpine.js - Minimal reactive framework.

State Management

• Redux - Predictable state container.
• Zustand - Small, fast state management for React.
• MobX - Simple, scalable state management.
• XState - State machines and statecharts.

Data Visualization

• D3 - Visualization library for HTML/SVG/Canvas.
• Chart.js - Simple canvas charts.
• ECharts - Powerful charting.
• Three.js - 3D library.
• Vega - Visualization grammar.
• Cytoscape.js - Graph theory visualizations.

Editors

• CodeMirror - Code editor.
• Monaco Editor - VS Code editor core.
• Ace - Browser code editor.
• Quill - Rich text editor.
• TinyMCE - Rich text editor.

Animations

• GSAP - High-performance animations.
• anime.js - Animation engine.
• motion - Modern animation library.
• three.js - 3D animations and scenes.

Maps

• Leaflet - Interactive maps.
• MapLibre GL JS - Open-source WebGL maps.
• OpenLayers - Feature-packed mapping library.
• Cesium - 3D globes and maps.

Backend

Web Frameworks

• Express - Minimal Node.js web framework.
• Fastify - Fast, schema-based framework.
• NestJS - Opinionated framework (TypeScript-first).
• Koa - Lightweight middleware framework.
• Hono - Small, fast framework for edge runtimes (also Node).
• SvelteKit - Full-stack Svelte framework.
• Next.js - Full-stack React framework.

API Clients & Data Fetching

• axios - HTTP client for Node and browser.
• ky - Tiny Fetch-based HTTP client.
• SWR - React Hooks data fetching.
• TanStack Query - Async state + caching.

Authentication

• Passport - Authentication middleware for Node.
• Lucia - Auth library (TypeScript-friendly).
• NextAuth.js - Authentication for Next.js and beyond.

ORM & Databases

• Prisma - Type-safe ORM.
• Drizzle ORM - SQL-first TypeScript ORM.
• Sequelize - Feature-rich ORM.
• TypeORM - ORM for TS/JS.
• Mongoose - MongoDB object modeling.
• Knex - SQL query builder.
• Kysely - Type-safe SQL query builder.

Queues & Jobs

• BullMQ - Redis-backed queue.
• Agenda - Job scheduling for Node.
• Bree - Job scheduler using worker threads.

WebSockets

• Socket.IO - Realtime framework with fallbacks.
• ws - Fast WebSocket implementation.

CMS

• Strapi - Open-source headless CMS.
• Ghost - Publishing platform.
• KeystoneJS - CMS + app framework.

Utilities

Files

• Papa Parse - CSV parsing.
• jsPDF - PDF generation.
• PDF.js - PDF reader in JavaScript.
• diff2html - Git diff → pretty HTML.

Functional Programming

• lodash - Utility library.
• underscore - Utility belt.
• ramda - Practical FP library.
• fxjs - Lazy evaluation + concurrency helpers.

Reactive Programming

• RxJS - Reactive programming library.
• Most.js - High-performance FRP library.
• Bacon.js - FRP library.

Data Structures

• immutable-js - Persistent data structures.
• js-sdsl - STL-like containers for JS.

Date & Time

• date-fns - Modern date utility library.
• dayjs - Small Moment-like API.
• luxon - Dates and times with Intl.
• ms - Millisecond conversion utility.

String

• he - HTML entity encoder/decoder.
• query-string - Parse/stringify URL query strings.
• sprintf.js - sprintf implementation.

Number

• Numeral.js - Number formatting.
• chance - Random generator helpers.
• Fraction.js - Rational numbers.

Storage

• localForage - Offline storage wrapper.
• Dexie.js - IndexedDB wrapper.
• js-cookie - Cookie API.

Color

• chroma.js - Color manipulations.
• randomColor - Color generator.
• TinyColor - Color manipulation/conversion.

I18n & L10n

• i18next - Internationalization framework.
• ttag - Modern i18n using tagged templates.

Control Flow

• async - Async utilities.
• p-limit - Limit concurrent promises.
• p-retry - Retry async functions.

Routing

• director - Isomorphic router.
• page.js - Micro client-side router.

RegExp

• Regex101 - Online regex tester/debugger.
• RegExr - Regex editor and learning tool.

Security

• DOMPurify - XSS sanitizer for HTML/SVG/MathML.
• sanitize-html - HTML sanitizer.
• js-xss - Sanitize untrusted HTML.

Logging

• pino - Very fast logger for Node.
• winston - Multi-transport async logging.
• loglevel - Minimal log level wrapper.

Benchmarking

• benchmark.js - Benchmarking library.
• matcha - Simple benchmarking runner.

Cross-Platform

CLI

• commander - CLI framework.
• yargs - CLI argument parsing.
• oclif - Opinionated CLI framework.
• zx - Write shell scripts in JavaScript.

Desktop Apps

• Electron - Cross-platform desktop apps.
• Tauri - Smaller desktop apps (JS frontend + Rust core).

Mobile Apps

• React Native - Native mobile apps with JS/TS.
• Expo - Tooling + platform for React Native apps.
• Ionic - Hybrid app framework.

AI & ML

• TensorFlow.js - Train/deploy ML models in JS.
• Brain.js - Neural networks in JavaScript.
• ml5.js - Friendly ML for the web.

Generative AI

• OpenAI SDK - Official JavaScript/TypeScript library for the OpenAI API.
• LangChain.js - LLM application framework for JS/TS.
• Vercel AI SDK - Build AI features for web apps.

Articles & Posts

• Clean Code JavaScript - Clean Code ideas adapted for JS.
• javascript-algorithms - Algorithms and data structures in JS.
• Roadmap.sh JavaScript Roadmap - Community learning roadmap.

Worth Reading

• You Don’t Know JS Yet - Deep dive series on JS fundamentals and internals.
• Superhero.js - Resources for creating and maintaining large JS codebases.
• braziljs/js-the-right-way - Quick reference for JS best practices.

Other Awesome Lists

• sindresorhus/awesome
• enaqx/awesome-react
• denolib/awesome-deno
• apvarun/awesome-bun

Contributing

Contributions welcome! Read the contribution guidelines first.

License

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