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.☆458,532Updated this week
- Curated list of project-based tutorials☆289,007Updated this week
- The library for web and native user interfaces.☆251,923Updated this week
- This is the repo for Vue 2. For Vue 3, go to https://github.com/vuejs/core☆212,490Oct 10, 2024Updated 2 years ago
- 📝 Algorithms and data structures implemented in JavaScript with explanations and links to further readings☆196,721Jul 26, 2026Updated 3 months ago
- A book series (2 published editions) on the JS language.☆184,842Updated this week
- The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web.☆174,965Updated this week
- JavaScript Style Guide☆148,030Apr 16, 2026Updated 6 months ago
- Coding articles to level up your development skills☆129,398Oct 26, 2026Updated last week
- Build cross-platform desktop apps with JavaScript, HTML, and CSS☆123,769Updated this week
- Node.js JavaScript runtime ✨🐢🚀✨☆123,226Updated this week
- 免费的计算机编程类中文书籍,欢迎投稿☆119,499Jul 29, 2026Updated 3 months ago
- High performance self-hosted photo and video management solution.☆118,228Updated this week
- JavaScript 3D Library.☆117,520Updated this week
- TypeScript is a superset of JavaScript that compiles to clean JavaScript output.☆111,729Updated this week
- Promise based HTTP client for the browser and node.js☆109,316Updated this week
- A modern runtime for JavaScript and TypeScript.☆108,802Oct 29, 2026Updated last week
- ✅ The Node.js best practices list (July 2026)☆105,717Jun 15, 2026Updated 4 months ago
- Deliver web apps with confidence 🚀☆101,101Updated this week
- Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.☆99,041Updated this week
- A Collection of application ideas which can be used to improve your coding skills.☆98,473Oct 11, 2025Updated last year
- 24 Lessons, 12 Weeks, Get Started as a Web Developer☆97,084Updated this week
- Incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one☆96,539Updated this week
- Clean Code concepts adapted for JavaScript☆94,691Jul 29, 2024Updated 2 years ago
- Storybook is the industry standard workshop for building, documenting, and testing UI components in isolation☆91,452Updated this week
- Generation of diagrams like flowcharts or sequence diagrams from text in a similar manner as markdown☆91,011Updated this week
- A curated awesome list of lists of interview questions. Feel free to contribute!☆85,379Jul 29, 2024Updated 2 years ago
- A progressive Node.js framework for building efficient, scalable, and enterprise-grade server-side applications with TypeScript/JavaScrip…☆76,971Updated this week
- A collection of awesome things regarding React ecosystem☆75,157Sep 4, 2026Updated 2 months ago
- 🗂 The essential checklist for modern web development, for humans and AI agents☆74,641Updated this week
- JavaScript animation engine☆74,260Updated this week
- 🚀 Strapi is the leading open-source headless CMS. It’s 100% JavaScript/TypeScript, fully customizable, and developer-first.☆73,426Updated this week
- Fast, unopinionated, minimalist web framework for node.☆69,580Updated this week
- uBlock Origin - An efficient blocker for Chromium and Firefox. Fast and lean.☆69,078Updated this week
- 🎥 Make videos programmatically with React☆70,673Updated this week
- Simple HTML5 Charts using the <canvas> tag☆67,775Oct 23, 2026Updated last week
- Delightful Node.js packages and resources [BECAUSE OF TOO MUCH SPAM AND LOW-QUALITY SUBMISSIONS, SUBMISSIONS ARE PAUSED TEMPORARILY]☆67,361Sep 2, 2026Updated 2 months ago
- Easy to maintain open source documentation websites.☆66,652Updated this week
- 📜 33 JavaScript concepts every developer should know.☆66,526Oct 21, 2026Updated 2 weeks ago
- A bundler for javascript and friends. Packs many modules into a few bundled assets. Code Splitting allows for loading parts of the applic…☆65,991Updated this week