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.☆441,071Apr 4, 2026Updated last week
- Curated list of project-based tutorials☆262,552Aug 15, 2024Updated last year
- The library for web and native user interfaces.☆244,432Apr 3, 2026Updated last week
- This is the repo for Vue 2. For Vue 3, go to https://github.com/vuejs/core☆209,883Oct 10, 2024Updated last year
- 📝 Algorithms and data structures implemented in JavaScript with explanations and links to further readings☆195,814Feb 18, 2026Updated last month
- A book series (2 published editions) on the JS language.☆184,520Feb 15, 2026Updated last month
- The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web.☆174,144Updated this week
- JavaScript Style Guide☆148,105Feb 24, 2026Updated last month
- Coding articles to level up your development skills☆127,362Updated this week
- Build cross-platform desktop apps with JavaScript, HTML, and CSS☆120,833Updated this week
- 免费的计算机编程类中文书籍，欢迎投稿☆116,553Jul 15, 2024Updated last year
- Node.js JavaScript runtime ✨🐢🚀✨☆116,671Updated this week
- JavaScript 3D Library.☆111,834Updated this week
- Promise based HTTP client for the browser and node.js☆109,052Updated this week
- TypeScript is a superset of JavaScript that compiles to clean JavaScript output.☆108,440Updated this week
- A modern runtime for JavaScript and TypeScript.☆106,490Updated this week
- The Node.js best practices list (July 2024)☆105,180Apr 15, 2025Updated 11 months ago
- Deliver web apps with confidence 🚀☆100,106Apr 4, 2026Updated last week
- 24 Lessons, 12 Weeks, Get Started as a Web Developer☆95,531Mar 29, 2026Updated 2 weeks ago
- Clean Code concepts adapted for JavaScript☆94,311Jul 29, 2024Updated last year
- High performance self-hosted photo and video management solution.☆97,235Updated this week
- A Collection of application ideas which can be used to improve your coding skills.☆92,698Oct 11, 2025Updated 6 months ago
- Storybook is the industry standard workshop for building, documenting, and testing UI components in isolation☆89,655Updated this week
- Incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one☆88,788Apr 5, 2026Updated last week
- Generation of diagrams like flowcharts or sequence diagrams from text in a similar manner as markdown☆87,125Apr 5, 2026Updated last week
- Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.☆85,796Updated this week
- A curated awesome list of lists of interview questions. Feel free to contribute!☆81,833Jul 29, 2024Updated last year
- A progressive Node.js framework for building efficient, scalable, and enterprise-grade server-side applications with TypeScript/JavaScrip…☆75,141Updated this week
- 🗂 The perfect Front-End Checklist for modern websites and meticulous developers☆72,436Mar 16, 2026Updated 3 weeks ago
- A collection of awesome things regarding React ecosystem☆72,686Mar 27, 2026Updated 2 weeks ago
- 🚀 Strapi is the leading open-source headless CMS. It’s 100% JavaScript/TypeScript, fully customizable, and developer-first.☆71,837Updated this week
- Fast, unopinionated, minimalist web framework for node.☆68,905Updated this week
- Simple HTML5 Charts using the <canvas> tag☆67,337Feb 28, 2026Updated last month
- JavaScript animation engine☆67,019Feb 13, 2026Updated last month
- 📜 33 JavaScript concepts every developer should know.☆66,307Updated 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…☆65,933Updated this week
- Delightful Node.js packages and resources [BECAUSE OF TOO MUCH SPAM AND LOW-QUALITY SUBMISSIONS, SUBMISSIONS ARE PAUSED UNTIL SEPTEMBER]☆65,458Apr 2, 2026Updated last week
- Easy to maintain open source documentation websites.☆64,428Updated this week
- Realtime application framework (Node.JS server)☆63,011Apr 2, 2026Updated last week
- A natural language interface for computers☆63,040Feb 9, 2026Updated 2 months ago