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.☆438,708Mar 22, 2026Updated last week
- Curated list of project-based tutorials☆261,549Aug 15, 2024Updated last year
- The library for web and native user interfaces.☆244,149Mar 21, 2026Updated last week
- This is the repo for Vue 2. For Vue 3, go to https://github.com/vuejs/core☆209,958Oct 10, 2024Updated last year
- 📝 Algorithms and data structures implemented in JavaScript with explanations and links to further readings☆195,804Feb 18, 2026Updated last month
- A book series (2 published editions) on the JS language.☆184,533Feb 15, 2026Updated last month
- The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web.☆174,120Updated this week
- JavaScript Style Guide☆148,124Feb 24, 2026Updated last month
- Coding articles to level up your development skills☆127,212Updated this week
- Build cross-platform desktop apps with JavaScript, HTML, and CSS☆120,677Updated this week
- 免费的计算机编程类中文书籍，欢迎投稿☆116,509Jul 15, 2024Updated last year
- Node.js JavaScript runtime ✨🐢🚀✨☆116,446Updated this week
- JavaScript 3D Library.☆111,596Updated this week
- Promise based HTTP client for the browser and node.js☆108,654Updated this week
- TypeScript is a superset of JavaScript that compiles to clean JavaScript output.☆108,251Updated this week
- A modern runtime for JavaScript and TypeScript.☆106,440Updated this week
- The Node.js best practices list (July 2024)☆105,181Apr 15, 2025Updated 11 months ago
- Deliver web apps with confidence 🚀☆100,161Mar 20, 2026Updated last week
- 24 Lessons, 12 Weeks, Get Started as a Web Developer☆95,450Mar 21, 2026Updated last week
- Clean Code concepts adapted for JavaScript☆94,334Jul 29, 2024Updated last year
- High performance self-hosted photo and video management solution.☆95,630Updated this week
- A Collection of application ideas which can be used to improve your coding skills.☆91,970Oct 11, 2025Updated 5 months ago
- Storybook is the industry standard workshop for building, documenting, and testing UI components in isolation☆89,503Updated this week
- Incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one☆88,345Mar 22, 2026Updated last week
- Generation of diagrams like flowcharts or sequence diagrams from text in a similar manner as markdown☆86,884Updated this week
- Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.☆84,870Updated this week
- A curated awesome list of lists of interview questions. Feel free to contribute!☆81,564Jul 29, 2024Updated last year
- A progressive Node.js framework for building efficient, scalable, and enterprise-grade server-side applications with TypeScript/JavaScrip…☆75,006Updated this week
- 🗂 The perfect Front-End Checklist for modern websites and meticulous developers☆72,390Mar 16, 2026Updated last week
- A collection of awesome things regarding React ecosystem☆72,470Jan 14, 2026Updated 2 months ago
- 🚀 Strapi is the leading open-source headless CMS. It’s 100% JavaScript/TypeScript, fully customizable, and developer-first.☆71,711Updated this week
- Fast, unopinionated, minimalist web framework for node.☆68,887Mar 1, 2026Updated 3 weeks ago
- Simple HTML5 Charts using the <canvas> tag☆67,308Feb 28, 2026Updated last month
- JavaScript animation engine☆66,922Feb 13, 2026Updated last month
- 📜 33 JavaScript concepts every developer should know.☆66,296Updated 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…☆66,035Updated this week
- Delightful Node.js packages and resources [BECAUSE OF TOO MUCH SPAM AND LOW-QUALITY SUBMISSIONS, SUBMISSIONS ARE PAUSED UNTIL SEPTEMBER]☆65,426Jan 14, 2026Updated 2 months ago
- Easy to maintain open source documentation websites.☆64,273Updated this week
- Realtime application framework (Node.JS server)☆62,984Mar 18, 2026Updated last week
- A natural language interface for computers☆62,853Feb 9, 2026Updated last month