PrivateGPT is itself an open-source project (from Zylon) for chatting with your documents fully offline, with no data leaving your machine. It's a solid API-first backend, but it's aimed at developers building on top of it rather than end users wanting a ready-to-use chat interface.
Since PrivateGPT is already open source, the comparison here is about finished product versus building block. AnythingLLM is an open-source alternative that packages document chat into a complete, self-hostable application with a UI, rather than requiring you to build one on top of an API layer.
FAQ
Is there a free, open-source alternative to PrivateGPT?
PrivateGPT is already free and open source. If you want a more complete, ready-to-use application instead of an API layer to build on, AnythingLLM is also open source and free to self-host.
What's the best open-source alternative to PrivateGPT?
AnythingLLM is the better pick if you want a full chat-with-your-documents application out of the box rather than assembling one yourself on top of PrivateGPT's API.
What are the top open-source alternatives to PrivateGPT?
Browse all open-source alternatives to PrivateGPT above, or explore the full Local AI category for more options.