🚀 Discover the best open-source tools for developers! 🛠️ Curated collection to build, test & ship faster. 🌍 Open-source & community-driven projects.

AutoGen: Microsoft's open-source framework for multi-agent AI apps. - Python, MIT code, ~61.3k GitHub stars, ~9.3k forks - ~443 contributors, main, python-v0.7.5 - AgentChat, MCP tools, no-code Studio, maintenance mode Best for: prototyping multi-agent workflows in Python
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PocketBase: an open-source realtime backend in one file, with auth, files and an admin UI. - Go, MIT, ~61.3k GitHub stars, ~3.7k forks - ~44 contributors, master, v0.40.4 - Embedded SQLite, realtime subscriptions, REST-ish API Best for: an app backend without running a stack
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AppFlowy: the open-source Notion alternative. An AI workspace for docs, wikis and projects. - Dart, AGPL-3.0, ~77.2k GitHub stars, ~6.1k forks - ~363 contributors, main, v0.14.7 - Flutter + Rust, desktop and mobile, self-hostable Best for: a Notion-style workspace you control
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Pathway: a Python ETL framework for stream processing, real-time analytics, LLM pipelines and RAG. - Python, ~62.2k GitHub stars, ~1.7k forks - ~43 contributors, main, v0.33.0 - Rust engine, one codebase for batch and streaming Best for: live data pipelines and real-time RAG
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Coolify: a self-hostable alternative to Heroku, Netlify and Vercel. Deploy on your own servers. - PHP, Apache-2.0, ~62.7k GitHub stars, ~5.6k forks - ~412 contributors, main, v4.4.0 - Git push deploys, PR previews, one-click services Best for: self-hosting apps on a VPS
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Astro: the web framework for content-driven websites. Islands ship zero JS by default. - TypeScript, ~63.1k GitHub stars, ~3.8k forks - ~337 contributors, main, astro@7.3.5 - React/Vue/Svelte integrations, static or SSR Best for: fast blogs, docs and marketing sites
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Open Interpreter — a terminal coding agent optimized for low-cost open models like Kimi K3. - Rust · Apache-2.0 · ~68.5k GitHub stars - ~473 contributors · main · 0.0.55 - Codex fork · swappable harnesses · MCP + ACP editors Best for: Codex-style coding on cheap open models
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Openpilot — a robotics OS that upgrades driver assistance on 300+ supported cars. - Python · MIT · ~63.8k GitHub stars - ~427 contributors · master · 0.11.1 - Runs on a comma four plugged into your car's harness Best for: DIY open-source driver assistance in your own car
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Strix — AI pentesting agents that find and fix your app’s vulnerabilities. - Python · Apache-2.0 · ~66.6k GitHub stars - ~72 contributors · main · 1.7.0 - Autonomous agents validate bugs with real proofs-of-concept Best for: automated app security testing in CI/CD
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Traefik — The cloud native application proxy. - Go · MIT · ~65.1k GitHub stars - ~415 contributors · master · 3.7.13 - Auto HTTPS, Docker & Kubernetes discovery built in Best for: routing and securing microservices at the edge
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