freeCodeCamp.org's open-source codebase and curriculum. Learn to code for free.

Interactive roadmaps, guides and other educational content to help developers grow in their careers.

💯 Curated coding interview preparation materials for busy software engineers

Material UI: Comprehensive React component library that implements Google's Material Design. Free forever.

An enterprise-class UI design language and React UI library

Virtual whiteboard for sketching hand-drawn like diagrams

JavaScript API for Chrome and Firefox

A utility-first CSS framework for rapid UI development.

"The mother of all demo apps" — Exemplary fullstack Medium.com clone powered by React, Angular, Node, Django, and many more

Beautifully designed components that you can copy and paste into your apps. Accessible. Customizable. Open Source.

The open source Firebase alternative. Supabase gives you a dedicated Postgres database to build your web, mobile, and AI applications.

VS Code in the browser

Open source API development ecosystem - https://hoppscotch.io (open-source alternative to Postman, Insomnia)

🚀 Strapi is the leading open-source headless CMS. It’s 100% JavaScript/TypeScript, fully customizable, and developer-first.

A terminal for a more modern age

Dify is an open-source LLM app development platform. Dify's intuitive interface combines AI workflow, RAG pipeline, agent capabilities, model management, observability features and more, letting yo…

Easy to maintain open source documentation websites.

Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations.

A powerful cross-platform UI toolkit for building native-quality iOS, Android, and Progressive Web Apps with HTML, CSS, and JavaScript.

The repository for high quality TypeScript type definitions.

🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.

The web framework for content-driven websites. ⭐️ Star to support our work!

Joplin - the privacy-focused note taking app with sync capabilities for Windows, macOS, Linux, Android and iOS.

Your backend, minus the hassle.

The HTML5 Creation Engine: Create beautiful digital content with the fastest, most flexible 2D WebGL renderer.

The communications platform that puts data protection first.

whiteboard SDK / infinite canvas SDK

开放式跨端跨框架解决方案，支持使用 React/Vue/Nerv 等框架来开发微信/京东/百度/支付宝/字节跳动/ QQ 小程序/H5/React Native 等应用。 https://taro.zone/

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Presentation Slides for Developers