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.☆444,028May 2, 2026Updated last week
- Curated list of project-based tutorials☆264,809Aug 15, 2024Updated last year
- The library for web and native user interfaces.☆244,813May 2, 2026Updated last week
- This is the repo for Vue 2. For Vue 3, go to https://github.com/vuejs/core☆209,800Oct 10, 2024Updated last year
- 📝 Algorithms and data structures implemented in JavaScript with explanations and links to further readings☆195,938Feb 18, 2026Updated 2 months ago
- A book series (2 published editions) on the JS language.☆184,439Feb 15, 2026Updated 2 months ago
- The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web.☆174,213May 1, 2026Updated last week
- JavaScript Style Guide☆148,115Apr 16, 2026Updated 3 weeks ago
- Coding articles to level up your development skills☆127,697Apr 21, 2026Updated 2 weeks ago
- Build cross-platform desktop apps with JavaScript, HTML, and CSS☆121,178Updated this week
- Node.js JavaScript runtime ✨🐢🚀✨☆116,998May 1, 2026Updated last week
- 免费的计算机编程类中文书籍，欢迎投稿☆116,814Jul 15, 2024Updated last year
- JavaScript 3D Library.☆112,344Updated this week
- Promise based HTTP client for the browser and node.js☆109,046Updated this week
- TypeScript is a superset of JavaScript that compiles to clean JavaScript output.☆108,727Updated this week
- A modern runtime for JavaScript and TypeScript.☆106,615Updated this week
- The Node.js best practices list (July 2024)☆105,247Apr 15, 2025Updated last year
- Deliver web apps with confidence 🚀☆100,061May 1, 2026Updated last week
- High performance self-hosted photo and video management solution.☆99,696Updated this week
- 24 Lessons, 12 Weeks, Get Started as a Web Developer☆95,701Apr 24, 2026Updated 2 weeks ago
- Clean Code concepts adapted for JavaScript☆94,298Jul 29, 2024Updated last year
- A Collection of application ideas which can be used to improve your coding skills.☆93,740Oct 11, 2025Updated 6 months ago
- Storybook is the industry standard workshop for building, documenting, and testing UI components in isolation☆89,846Updated this week
- Incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one☆89,494May 2, 2026Updated last week
- Generation of diagrams like flowcharts or sequence diagrams from text in a similar manner as markdown☆87,775Updated this week
- Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.☆87,923Updated this week
- A curated awesome list of lists of interview questions. Feel free to contribute!☆82,314Jul 29, 2024Updated last year
- A progressive Node.js framework for building efficient, scalable, and enterprise-grade server-side applications with TypeScript/JavaScrip…☆75,409Updated this week
- A collection of awesome things regarding React ecosystem☆73,102Mar 27, 2026Updated last month
- 🗂 The perfect Front-End Checklist for modern websites and meticulous developers☆72,544Mar 16, 2026Updated last month
- 🚀 Strapi is the leading open-source headless CMS. It’s 100% JavaScript/TypeScript, fully customizable, and developer-first.☆72,095Updated this week
- Fast, unopinionated, minimalist web framework for node.☆68,989Updated this week
- Simple HTML5 Charts using the <canvas> tag☆67,390Apr 16, 2026Updated 3 weeks ago
- JavaScript animation engine☆67,762Apr 30, 2026Updated last week
- 📜 33 JavaScript concepts every developer should know.☆66,369Apr 12, 2026Updated 3 weeks ago
- A bundler for javascript and friends. Packs many modules into a few bundled assets. Code Splitting allows for loading parts of the applic…☆65,777Updated this week
- Delightful Node.js packages and resources [BECAUSE OF TOO MUCH SPAM AND LOW-QUALITY SUBMISSIONS, SUBMISSIONS ARE PAUSED UNTIL JULY]☆65,611Updated this week
- Easy to maintain open source documentation websites.☆64,821May 2, 2026Updated last week
- A natural language interface for computers☆63,389Updated this week
- Realtime application framework (Node.JS server)☆63,064Apr 27, 2026Updated last week