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

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

Open-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-Source Alternative to Postman, Insomnia

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

Realtime application framework (Node.JS server)

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

The fastest knowledge base for growing teams. Beautiful, realtime collaborative, feature packed, and markdown compatible.

Umami is a modern, privacy-focused alternative to Google Analytics.

Enhanced ChatGPT Clone: Features Agents, MCP, DeepSeek, Anthropic, AWS, OpenAI, Responses API, Azure, Groq, o1, GPT-5, Mistral, OpenRouter, Vertex AI, Gemini, Artifacts, AI model switching, message…

Simple, scalable state management.

Huly — All-in-One Project Management Platform (alternative to Linear, Jira, Slack, Notion, Motion)

Eclipse Theia is a cloud & desktop IDE framework implemented in TypeScript.

The AI Browser Automation Framework

A personal knowledge management and sharing system for VSCode

Scalable PaaS (automated Docker+nginx) - aka Heroku on Steroids

The AWS Cloud Development Kit is a framework for defining cloud infrastructure in code

Take control over your live stream video by running it yourself. Streaming + chat out of the box.

🤖 A framework for building GitHub Apps to automate and improve your workflow

Resolve production issues, fast. An open source observability platform unifying session replays, logs, metrics, traces and errors powered by Clickhouse and OpenTelemetry.

Define infrastructure resources using programming constructs and provision them using HashiCorp Terraform

GitHub Action to build and push Docker images with Buildx

A Kubernetes web UI that is fully-featured, user-friendly and extensible

Kubernetes powered PaaS that runs in your own cloud.

Android Reverse-Engineering Workbench for VS Code

🎨 user interfaces for react-three-fiber

Browser-based ePub reader

Medplum is a healthcare platform that helps you quickly develop high-quality compliant applications.

🧙‍♀️ easily deploy cloudflare workers applications using wrangler and github actions

The Open Source Observability Distribution

Mobile app for Chatwoot - React Native