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.โ451,151Updated this week
- Curated list of project-based tutorialsโ272,479Updated this week
- This is the repo for Vue 2. For Vue 3, go to https://github.com/vuejs/coreโ209,986Oct 10, 2024Updated last year
- ๐ Algorithms and data structures implemented in JavaScript with explanations and links to further readingsโ196,188Jun 26, 2026Updated last week
- A book series (2 published editions) on the JS language.โ184,579Feb 15, 2026Updated 4 months ago
- The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web.โ174,424Updated this week
- JavaScript Style Guideโ148,081Apr 16, 2026Updated 2 months ago
- Coding articles to level up your development skillsโ128,312Jun 22, 2026Updated 2 weeks ago
- Build cross-platform desktop apps with JavaScript, HTML, and CSSโ121,890Updated this week
- Node.js JavaScript runtime โจ๐ข๐โจโ118,064Updated this week
- ๅ ่ดน็่ฎก็ฎๆบ็ผ็จ็ฑปไธญๆไนฆ็ฑ๏ผๆฌข่ฟๆ็จฟโ117,288Jul 15, 2024Updated last year
- JavaScript 3D Library.โ113,485Updated this week
- Promise based HTTP client for the browser and node.jsโ109,107Updated this week
- TypeScript is a superset of JavaScript that compiles to clean JavaScript output.โ109,492Updated this week
- A modern runtime for JavaScript and TypeScript.โ107,579Updated this week
- โ The Node.js best practices list (July 2026)โ105,407Jun 15, 2026Updated 3 weeks ago
- Deliver web apps with confidence ๐โ100,486Updated this week
- High performance self-hosted photo and video management solution.โ106,826Updated this week
- 24 Lessons, 12 Weeks, Get Started as a Web Developerโ95,962Jun 30, 2026Updated last week
- Clean Code concepts adapted for JavaScriptโ94,683Jul 29, 2024Updated last year
- A Collection of application ideas which can be used to improve your coding skills.โ95,457Oct 11, 2025Updated 8 months ago
- Storybook is the industry standard workshop for building, documenting, and testing UI components in isolationโ90,511Updated this week
- Incredibly fast JavaScript runtime, bundler, test runner, and package manager โ all in oneโ93,597Updated this week
- Generation of diagrams like flowcharts or sequence diagrams from text in a similar manner as markdownโ89,060Updated this week
- Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.โ92,417Updated this week
- A curated awesome list of lists of interview questions. Feel free to contribute!โ83,413Jul 29, 2024Updated last year
- A progressive Node.js framework for building efficient, scalable, and enterprise-grade server-side applications with TypeScript/JavaScripโฆโ76,010Updated this week
- A collection of awesome things regarding React ecosystemโ73,855Jun 2, 2026Updated last month
- ๐ The essential checklist for modern web development, for humans and AI agentsโ73,140Jun 18, 2026Updated 3 weeks ago
- ๐ Strapi is the leading open-source headless CMS. Itโs 100% JavaScript/TypeScript, fully customizable, and developer-first.โ72,588Updated this week
- Fast, unopinionated, minimalist web framework for node.โ69,267Updated this week
- Simple HTML5 Charts using the <canvas> tagโ67,542May 27, 2026Updated last month
- JavaScript animation engineโ70,679Jun 22, 2026Updated 2 weeks ago
- ๐ 33 JavaScript concepts every developer should know.โ66,491Jun 6, 2026Updated last month
- A bundler for javascript and friends. Packs many modules into a few bundled assets. Code Splitting allows for loading parts of the applicโฆโ65,833Updated this week
- Delightful Node.js packages and resources [BECAUSE OF TOO MUCH SPAM AND LOW-QUALITY SUBMISSIONS, SUBMISSIONS ARE PAUSED UNTIL JULY]โ66,130May 3, 2026Updated 2 months ago
- Easy to maintain open source documentation websites.โ65,542Updated this week
- Bidirectional and low-latency communication for every platformโ63,199Jun 25, 2026Updated 2 weeks ago