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.☆437,471Updated this week
- Curated list of project-based tutorials☆259,456Aug 15, 2024Updated last year
- The library for web and native user interfaces.☆243,346Updated this week
- This is the repo for Vue 2. For Vue 3, go to https://github.com/vuejs/core☆209,969Oct 10, 2024Updated last year
- 📝 Algorithms and data structures implemented in JavaScript with explanations and links to further readings☆195,670Feb 18, 2026Updated last week
- A book series (2 published editions) on the JS language.☆184,475Feb 15, 2026Updated last week
- The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web.☆174,010Updated this week
- JavaScript Style Guide☆148,103Nov 6, 2025Updated 3 months ago
- Coding articles to level up your development skills☆126,820Feb 7, 2026Updated 2 weeks ago
- Build cross-platform desktop apps with JavaScript, HTML, and CSS☆120,195Updated this week
- 免费的计算机编程类中文书籍，欢迎投稿☆116,358Jul 15, 2024Updated last year
- Node.js JavaScript runtime ✨🐢🚀✨☆115,902Updated this week
- JavaScript 3D Library.☆111,005Updated this week
- Promise based HTTP client for the browser and node.js☆108,628Updated this week
- TypeScript is a superset of JavaScript that compiles to clean JavaScript output.☆107,934Updated this week
- A modern runtime for JavaScript and TypeScript.☆106,261Feb 20, 2026Updated last week
- The Node.js best practices list (July 2024)☆105,105Apr 15, 2025Updated 10 months ago
- Deliver web apps with confidence 🚀☆100,038Updated this week
- 24 Lessons, 12 Weeks, Get Started as a Web Developer☆95,338Feb 19, 2026Updated last week
- Clean Code concepts adapted for JavaScript☆94,309Jul 29, 2024Updated last year
- High performance self-hosted photo and video management solution.☆93,550Updated this week
- A Collection of application ideas which can be used to improve your coding skills.☆90,608Oct 11, 2025Updated 4 months ago
- Storybook is the industry standard workshop for building, documenting, and testing UI components in isolation☆89,323Updated this week
- Incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one☆87,592Updated this week
- Generation of diagrams like flowcharts or sequence diagrams from text in a similar manner as markdown☆86,270Updated this week
- Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.☆83,080Updated this week
- A curated awesome list of lists of interview questions. Feel free to contribute!☆81,111Jul 29, 2024Updated last year
- A progressive Node.js framework for building efficient, scalable, and enterprise-grade server-side applications with TypeScript/JavaScrip…☆74,706Updated this week
- 🗂 The perfect Front-End Checklist for modern websites and meticulous developers☆72,183Feb 4, 2026Updated 3 weeks ago
- A collection of awesome things regarding React ecosystem☆72,110Jan 14, 2026Updated last month
- 🚀 Strapi is the leading open-source headless CMS. It’s 100% JavaScript/TypeScript, fully customizable, and developer-first.☆71,361Updated this week
- Fast, unopinionated, minimalist web framework for node.☆68,787Feb 14, 2026Updated last week
- Simple HTML5 Charts using the <canvas> tag☆67,173Dec 8, 2025Updated 2 months ago
- JavaScript animation engine☆66,595Feb 13, 2026Updated 2 weeks ago
- 📜 33 JavaScript concepts every developer should know.☆66,255Feb 17, 2026Updated last week
- A bundler for javascript and friends. Packs many modules into a few bundled assets. Code Splitting allows for loading parts of the applic…☆66,049Updated this week
- Delightful Node.js packages and resources☆65,056Jan 14, 2026Updated last month
- Easy to maintain open source documentation websites.☆63,844Feb 19, 2026Updated last week
- Realtime application framework (Node.JS server)☆62,886Jan 23, 2026Updated last month
- A natural language interface for computers☆62,268Feb 9, 2026Updated 2 weeks ago