Best Alternatives to AutoGen

Microsoft multi-agent framework — 54K+ stars. Compare 10 similar free AI tools.

1. Microsoft Agent Framework — Microsoft's framework for multi-agent systems — Azure integration, Teams/M365 connectors, A2A protocol support (Free: Open source; Azure free tier for hosting)
2. CrewAI — Multi-agent orchestration — role-based, 44K+ stars (Free: MIT)
3. FreeAgent — An open-source multi-agent AI framework for building automated systems. (Free: Completely free and open-source under MIT license.)
4. CrewAI — Role-based multi-agent orchestration — good for quick prototyping personal agent crews (Free: MIT; open source)
5. Notion AI — AI workspace with databases and wikis (Free: ~5 AI gens/month + full workspace)
6. n8n — Self-hosted automation platform — 176K stars, 400+ integrations (Free: Unlimited self-hosted forever)
7. LangChain — LLM orchestration — 700+ integrations (Free: MIT)
8. AI Build AI — An open-source framework for building AI tools using AI-assisted development. (Free: Completely free open-source framework available on GitHub.)
9. LangGraph — Production agent graphs — SQLite persistence, human-in-the-loop interrupts (Free: MIT; ~34.5M downloads/mo)
10. OpenClaw — Viral autonomous AI platform — 100K+ stars, multi-channel messaging, skills ecosystem (Free: Open source; 300+ models via OpenRouter)

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