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PrivateGPT vs Langflow: catalog facts
PrivateGPT	Langflow
Free Free to run yourself from the public repository.	Free Free and open source under the MIT license.
Self-hosted	Web, Self-hosted
Document question answering (RAG) on local models Works with any OpenAI-compatible inference server	Visual canvas plus built-in API and MCP server output Supports a large library of LLMs, vector databases and tools
Aimed at developers; requires setting up a separate inference server Mainly an API layer rather than a finished desktop app	Requires separate access to whichever LLM providers or local models you connect Complex workflows can require developer-level setup
Self-hosted	Self-hosted, Web application
Closed source	Open source
License not stated	License: MIT
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 22, 2026

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