freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.

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

Curated coding interview preparation materials for busy software engineers

Production-ready platform for agentic workflow development.

Virtual whiteboard for sketching hand-drawn like diagrams

Storybook is the industry standard workshop for building, documenting, and testing UI components in isolation

Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.

VS Code in the browser

Model Context Protocol Servers

🔥 The Web Data API for AI - Turn entire websites into LLM-ready markdown or structured data

Apache Superset is a Data Visualization and Data Exploration Platform

🤯 LobeHub - an open-source, modern design AI Agent Workspace. Supports multiple AI providers, Knowledge Base (file upload / RAG ), one click install MCP Marketplace and Artifacts / Thinking. One-cl…

There can be more than Notion and Miro. AFFiNE(pronounced [ə‘fain]) is a next-gen knowledge base that brings planning, sorting and creating all together. Privacy first, open-source, customizable an…

🐻 Bear necessities for state management in React

Build AI Agents, Visually

Quill is a modern WYSIWYG editor built for compatibility and extensibility

✨ Innovative and open-source visualization application that transforms various data formats, such as JSON, YAML, XML, CSV and more, into interactive graphs.

Jan is an open source alternative to ChatGPT that runs 100% offline on your computer.

Platform to build admin panels, internal tools, and dashboards. Integrates with 25+ databases and any API.

The open-source notification Inbox infrastructure. E-mail, SMS, Push and Slack Integrations.

Building a modern alternative to Salesforce, powered by the community.

Making Docker and Kubernetes management easy.

Blazing fast, instant realtime GraphQL APIs on all your data with fine grained access control, also trigger webhooks on database events.

Perplexica is an AI-powered answering engine. It is an Open source alternative to Perplexity AI

React UI + elegant infrastructure for AI Copilots, AI chatbots, and in-app AI agents. The Agentic Frontend 🪁

Nodejs extension host for vim & neovim, load extensions like VSCode and host language servers.

基于 ChatGPT API 的划词翻译浏览器插件和跨平台桌面端应用 - Browser extension and cross-platform desktop application for translation based on ChatGPT API.

The most comprehensive authentication framework for TypeScript

🔥 Clone and recreate any website as a modern React app in seconds

🎒 Token-Oriented Object Notation (TOON) – Compact, human-readable, schema-aware JSON for LLM prompts. Spec, benchmarks, TypeScript SDK.