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.☆452,960Updated this week
- Curated list of project-based tutorials☆275,448Updated this week
- The library for web and native user interfaces.☆246,739Updated this week
- This is the repo for Vue 2. For Vue 3, go to https://github.com/vuejs/core☆210,115Oct 10, 2024Updated last year
- 📝 Algorithms and data structures implemented in JavaScript with explanations and links to further readings☆196,343Updated this week
- A book series (2 published editions) on the JS language.☆184,626Feb 15, 2026Updated 5 months ago
- The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web.☆174,529Updated this week
- JavaScript Style Guide☆148,086Apr 16, 2026Updated 3 months ago
- Coding articles to level up your development skills☆128,526Updated this week
- Build cross-platform desktop apps with JavaScript, HTML, and CSS☆122,211Updated this week
- Node.js JavaScript runtime ✨🐢🚀✨☆118,538Updated this week
- 免费的计算机编程类中文书籍,欢迎投稿☆117,864Jul 15, 2024Updated 2 years ago
- JavaScript 3D Library.☆114,062Updated this week
- TypeScript is a superset of JavaScript that compiles to clean JavaScript output.☆109,977Updated this week
- Promise based HTTP client for the browser and node.js☆109,158Updated this week
- High performance self-hosted photo and video management solution.☆109,001Updated this week
- A modern runtime for JavaScript and TypeScript.☆107,822Updated this week
- ✅ The Node.js best practices list (July 2026)☆105,459Jun 15, 2026Updated last month
- Deliver web apps with confidence 🚀☆100,599Updated this week
- 24 Lessons, 12 Weeks, Get Started as a Web Developer☆96,071Updated this week
- A Collection of application ideas which can be used to improve your coding skills.☆96,224Oct 11, 2025Updated 9 months ago
- Incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one☆95,044Updated this week
- Clean Code concepts adapted for JavaScript☆94,748Jul 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.☆93,574Updated this week
- Storybook is the industry standard workshop for building, documenting, and testing UI components in isolation☆90,691Updated this week
- Generation of diagrams like flowcharts or sequence diagrams from text in a similar manner as markdown☆89,453Updated this week
- A curated awesome list of lists of interview questions. Feel free to contribute!☆83,812Jul 29, 2024Updated 2 years ago
- A progressive Node.js framework for building efficient, scalable, and enterprise-grade server-side applications with TypeScript/JavaScrip…☆76,234Updated this week
- A collection of awesome things regarding React ecosystem☆74,118Jul 20, 2026Updated last week
- 🗂 The essential checklist for modern web development, for humans and AI agents☆73,346Jun 18, 2026Updated last month
- 🚀 Strapi is the leading open-source headless CMS. It’s 100% JavaScript/TypeScript, fully customizable, and developer-first.☆72,730Updated this week
- JavaScript animation engine☆71,573Jun 22, 2026Updated last month
- Fast, unopinionated, minimalist web framework for node.☆69,260Updated this week
- Simple HTML5 Charts using the <canvas> tag☆67,607May 27, 2026Updated 2 months ago
- 📜 33 JavaScript concepts every developer should know.☆66,508Jun 6, 2026Updated last month
- uBlock Origin - An efficient blocker for Chromium and Firefox. Fast and lean.☆66,558Updated this week
- Delightful Node.js packages and resources [BECAUSE OF TOO MUCH SPAM AND LOW-QUALITY SUBMISSIONS, SUBMISSIONS ARE PAUSED UNTIL JULY]☆66,383May 3, 2026Updated 2 months ago
- A bundler for javascript and friends. Packs many modules into a few bundled assets. Code Splitting allows for loading parts of the applic…☆65,861Updated this week
- Easy to maintain open source documentation websites.☆65,743Updated this week
- Bidirectional and low-latency communication for every platform☆63,173Updated this week