RAGFlow

Verdict: Self-hostable RAG engine with deep document parsing, a web UI and agent workflows. For teams who want a ready-made knowledge-base chat over their files.

Free (Apache-2.0 open source, self-host) · Official site: https://ragflow.io · source checked 2026-10-21 (HTTP 200)

GitHub repo · ★ 92.6k stars (as of 2026-10-21) · More open-source AI

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