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RAGFlow vs SurfSense: catalog facts
RAGFlow	SurfSense
Free Free and open source to self-host.	Free Free and open source to self-host.
Web, Self-hosted	Web, Self-hosted
Ingestion pipeline for many document and data formats Hybrid vector and full-text search with re-ranking	Can run air-gapped with your data kept private Answers questions over your own documents and connected sources
Server setup is more involved than a desktop chat app Geared toward teams and organisations more than individuals	Requires setting up and maintaining your own server Fast pace of change can mean frequent updates
Self-hosted	Self-hosted
Open source	Open source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 26, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.