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.☆456,067Updated this week
- Curated list of project-based tutorials☆284,442Updated this week
- The library for web and native user interfaces.☆250,688Updated this week
- This is the repo for Vue 2. For Vue 3, go to https://github.com/vuejs/core☆212,824Oct 10, 2024Updated last year
- 📝 Algorithms and data structures implemented in JavaScript with explanations and links to further readings☆196,794Jul 26, 2026Updated last month
- A book series (2 published editions) on the JS language.☆184,945Feb 15, 2026Updated 7 months ago
- The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web.☆174,898Updated this week
- JavaScript Style Guide☆148,262Apr 16, 2026Updated 5 months ago
- Coding articles to level up your development skills☆129,201Sep 11, 2026Updated 2 weeks ago
- Build cross-platform desktop apps with JavaScript, HTML, and CSS☆123,227Updated this week
- Node.js JavaScript runtime ✨🐢🚀✨☆122,061Updated this week
- 免费的计算机编程类中文书籍,欢迎投稿☆119,082Jul 29, 2026Updated last month
- JavaScript 3D Library.☆115,800Updated this week
- TypeScript is a superset of JavaScript that compiles to clean JavaScript output.☆111,178Updated this week
- Promise based HTTP client for the browser and node.js☆109,210Updated this week
- High performance self-hosted photo and video management solution.☆114,961Updated this week
- A modern runtime for JavaScript and TypeScript.☆108,496Updated this week
- ✅ The Node.js best practices list (July 2026)☆105,634Jun 15, 2026Updated 3 months ago
- Deliver web apps with confidence 🚀☆101,028Updated this week
- 24 Lessons, 12 Weeks, Get Started as a Web Developer☆96,750Updated this week
- A Collection of application ideas which can be used to improve your coding skills.☆97,729Oct 11, 2025Updated 11 months ago
- Incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one☆96,030Updated this week
- Clean Code concepts adapted for JavaScript☆94,751Jul 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.☆96,629Updated this week
- Storybook is the industry standard workshop for building, documenting, and testing UI components in isolation☆91,145Updated this week
- Generation of diagrams like flowcharts or sequence diagrams from text in a similar manner as markdown☆90,410Updated this week
- A curated awesome list of lists of interview questions. Feel free to contribute!☆84,659Jul 29, 2024Updated 2 years ago
- A progressive Node.js framework for building efficient, scalable, and enterprise-grade server-side applications with TypeScript/JavaScrip…☆76,726Updated this week
- A collection of awesome things regarding React ecosystem☆74,700Sep 4, 2026Updated 3 weeks ago
- 🗂 The essential checklist for modern web development, for humans and AI agents☆74,251Aug 14, 2026Updated last month
- 🚀 Strapi is the leading open-source headless CMS. It’s 100% JavaScript/TypeScript, fully customizable, and developer-first.☆73,228Updated this week
- JavaScript animation engine☆73,093Aug 21, 2026Updated last month
- Fast, unopinionated, minimalist web framework for node.☆69,469Sep 15, 2026Updated last week
- Simple HTML5 Charts using the <canvas> tag☆67,719Sep 14, 2026Updated last week
- 📜 33 JavaScript concepts every developer should know.☆66,531Sep 10, 2026Updated 2 weeks ago
- uBlock Origin - An efficient blocker for Chromium and Firefox. Fast and lean.☆68,090Updated this week
- Delightful Node.js packages and resources [BECAUSE OF TOO MUCH SPAM AND LOW-QUALITY SUBMISSIONS, SUBMISSIONS ARE PAUSED TEMPORARILY]☆66,902Sep 2, 2026Updated 3 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…☆65,946Updated this week
- Easy to maintain open source documentation websites.☆66,333Updated this week
- Bidirectional and low-latency communication for every platform☆63,211Updated this week