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.☆442,676Apr 10, 2026Updated last week
- Curated list of project-based tutorials☆263,135Aug 15, 2024Updated last year
- The library for web and native user interfaces.☆244,441Apr 11, 2026Updated last week
- This is the repo for Vue 2. For Vue 3, go to https://github.com/vuejs/core☆209,818Oct 10, 2024Updated last year
- 📝 Algorithms and data structures implemented in JavaScript with explanations and links to further readings☆195,814Feb 18, 2026Updated 2 months ago
- A book series (2 published editions) on the JS language.☆184,428Feb 15, 2026Updated 2 months ago
- The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web.☆174,144Apr 9, 2026Updated last week
- JavaScript Style Guide☆148,105Feb 24, 2026Updated last month
- Coding articles to level up your development skills☆127,474Updated this week
- Build cross-platform desktop apps with JavaScript, HTML, and CSS☆120,833Apr 11, 2026Updated last week
- 免费的计算机编程类中文书籍，欢迎投稿☆116,574Jul 15, 2024Updated last year
- Node.js JavaScript runtime ✨🐢🚀✨☆116,671Apr 10, 2026Updated last week
- JavaScript 3D Library.☆111,990Updated this week
- Promise based HTTP client for the browser and node.js☆109,004Updated this week
- TypeScript is a superset of JavaScript that compiles to clean JavaScript output.☆108,531Updated this week
- A modern runtime for JavaScript and TypeScript.☆106,487Updated this week
- The Node.js best practices list (July 2024)☆105,195Apr 15, 2025Updated last year
- Deliver web apps with confidence 🚀☆100,040Updated this week
- 24 Lessons, 12 Weeks, Get Started as a Web Developer☆95,567Apr 11, 2026Updated last week
- Clean Code concepts adapted for JavaScript☆94,309Jul 29, 2024Updated last year
- High performance self-hosted photo and video management solution.☆97,868Updated this week
- A Collection of application ideas which can be used to improve your coding skills.☆93,073Oct 11, 2025Updated 6 months ago
- Storybook is the industry standard workshop for building, documenting, and testing UI components in isolation☆89,702Updated this week
- Incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one☆89,008Updated this week
- Generation of diagrams like flowcharts or sequence diagrams from text in a similar manner as markdown☆87,309Updated this week
- Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.☆86,400Updated this week
- A curated awesome list of lists of interview questions. Feel free to contribute!☆81,898Jul 29, 2024Updated last year
- A progressive Node.js framework for building efficient, scalable, and enterprise-grade server-side applications with TypeScript/JavaScrip…☆75,236Updated this week
- 🗂 The perfect Front-End Checklist for modern websites and meticulous developers☆72,479Mar 16, 2026Updated last month
- A collection of awesome things regarding React ecosystem☆72,810Mar 27, 2026Updated 3 weeks ago
- 🚀 Strapi is the leading open-source headless CMS. It’s 100% JavaScript/TypeScript, fully customizable, and developer-first.☆71,911Updated this week
- Fast, unopinionated, minimalist web framework for node.☆68,946Updated this week
- Simple HTML5 Charts using the <canvas> tag☆67,363Updated this week
- JavaScript animation engine☆67,076Feb 13, 2026Updated 2 months ago
- 📜 33 JavaScript concepts every developer should know.☆66,329Updated this week
- A bundler for javascript and friends. Packs many modules into a few bundled assets. Code Splitting allows for loading parts of the applic…☆65,838Updated this week
- Delightful Node.js packages and resources [BECAUSE OF TOO MUCH SPAM AND LOW-QUALITY SUBMISSIONS, SUBMISSIONS ARE PAUSED UNTIL SEPTEMBER]☆65,463Apr 2, 2026Updated 2 weeks ago
- Easy to maintain open source documentation websites.☆64,590Updated this week
- Realtime application framework (Node.JS server)☆63,033Updated this week
- A natural language interface for computers☆63,151Updated this week