JavaScript is a dynamic, high-level, and interpreted programming language that is essential for web development, allowing developers to build interactive and responsive user interfaces. Primarily executed on the client-side in web browsers, JavaScript enables the creation of rich user experiences through the manipulation of HTML, CSS, and DOM elements. It's also widely supported by server-side environments like Node.js, expanding its use beyond the browser. Key features include first-class functions, closures, and prototype-based inheritance, which empower developers to write both functional and object-oriented code. With its extensive ecosystem of libraries and frameworks such as React, Angular, and Vue.js, JavaScript provides tools for efficient handling of complex applications. Its asynchronous capabilities, through constructs like Promises and the async/await syntax, offer solutions for handling operations like API calls and data fetching, vital for modern web applications.
View the most prominent open source JavaScript projects in the list below. Click on a specific project to view its alternative or complementary packages. Make comparisons and find the best package for your app.
- freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.☆456,985Updated this week
- Curated list of project-based tutorials☆286,683Updated this week
- The library for web and native user interfaces.☆251,018Updated this week
- This is the repo for Vue 2. For Vue 3, go to https://github.com/vuejs/core☆212,558Oct 10, 2024Updated 2 years ago
- 📝 Algorithms and data structures implemented in JavaScript with explanations and links to further readings☆196,664Jul 26, 2026Updated 2 months ago
- A book series (2 published editions) on the JS language.☆184,821Feb 15, 2026Updated 8 months ago
- The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web.☆174,825Updated this week
- JavaScript Style Guide☆148,080Apr 16, 2026Updated 5 months ago
- Coding articles to level up your development skills☆129,179Oct 2, 2026Updated last week
- Build cross-platform desktop apps with JavaScript, HTML, and CSS☆123,300Updated this week
- Node.js JavaScript runtime ✨🐢🚀✨☆122,380Updated this week
- 免费的计算机编程类中文书籍,欢迎投稿☆119,179Jul 29, 2026Updated 2 months ago
- JavaScript 3D Library.☆116,404Updated this week
- TypeScript is a superset of JavaScript that compiles to clean JavaScript output.☆111,434Updated this week
- Promise based HTTP client for the browser and node.js☆109,298Updated this week
- High performance self-hosted photo and video management solution.☆116,152Updated this week
- A modern runtime for JavaScript and TypeScript.☆108,767Oct 7, 2026Updated last week
- ✅ The Node.js best practices list (July 2026)☆105,658Jun 15, 2026Updated 4 months ago
- Deliver web apps with confidence 🚀☆101,057Updated this week
- 24 Lessons, 12 Weeks, Get Started as a Web Developer☆96,945Updated this week
- A Collection of application ideas which can be used to improve your coding skills.☆98,177Oct 11, 2025Updated last year
- Incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one☆96,233Updated this week
- Clean Code concepts adapted for JavaScript☆94,730Jul 29, 2024Updated 2 years ago
- Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.☆97,700Updated this week
- Storybook is the industry standard workshop for building, documenting, and testing UI components in isolation☆91,293Updated this week
- Generation of diagrams like flowcharts or sequence diagrams from text in a similar manner as markdown☆90,642Updated this week
- A curated awesome list of lists of interview questions. Feel free to contribute!☆84,950Jul 29, 2024Updated 2 years ago
- A progressive Node.js framework for building efficient, scalable, and enterprise-grade server-side applications with TypeScript/JavaScrip…☆76,815Updated this week
- A collection of awesome things regarding React ecosystem☆74,884Sep 4, 2026Updated last month
- 🗂 The essential checklist for modern web development, for humans and AI agents☆74,459Oct 6, 2026Updated last week
- 🚀 Strapi is the leading open-source headless CMS. It’s 100% JavaScript/TypeScript, fully customizable, and developer-first.☆73,298Updated this week
- JavaScript animation engine☆73,594Aug 21, 2026Updated last month
- Fast, unopinionated, minimalist web framework for node.☆69,570Updated this week
- Simple HTML5 Charts using the <canvas> tag☆67,732Oct 4, 2026Updated last week
- 📜 33 JavaScript concepts every developer should know.☆66,529Sep 10, 2026Updated last month
- uBlock Origin - An efficient blocker for Chromium and Firefox. Fast and lean.☆68,518Updated this week
- Delightful Node.js packages and resources [BECAUSE OF TOO MUCH SPAM AND LOW-QUALITY SUBMISSIONS, SUBMISSIONS ARE PAUSED TEMPORARILY]☆67,116Sep 2, 2026Updated last month
- A bundler for javascript and friends. Packs many modules into a few bundled assets. Code Splitting allows for loading parts of the applic…☆66,062Updated this week
- Easy to maintain open source documentation websites.☆66,486Updated this week
- Bidirectional and low-latency communication for every platform☆63,218Sep 29, 2026Updated 2 weeks ago