Privacy & self-hosting

Self-hosted ChatGPT alternatives

For teams and individuals who want a ChatGPT-like experience without handing conversations to a third party. We favoured open-source chat interfaces that work with local models and your own API keys, ordered by how complete they are out of the box, plus a local model runner to power them.

1. 1
   Open WebUIAI toolA polished self-hosted chat UI for local and API models, with saved prompts and document chat.Open source
2. 2
   LibreChatOpen sourceAn open-source ChatGPT-style interface that connects many providers and local models, with agents and code execution.★ 46.6k · MIT
3. 3
   AnythingLLMOpen sourceChat with your own documents and build agents locally, with vector databases handled for you.★ 67.8k · MIT
4. 4
   OllamaOpen sourceThe local model runner most of these interfaces can plug into.★ 186k · MIT
5. 5
   NextChatOpen sourceA lightweight, cross-platform chat app that keeps data in your browser and is quick to self-host.★ 88.9k · MIT
6. 6
   Open NotebookOpen sourceA self-hosted alternative to NotebookLM for chatting with sources and organising research.★ 41.3k · MIT
7. 7
   VaneOpen sourceA private AI search engine with cited answers that runs on your own hardware.★ 38k · MIT
8. 8
   JanAI toolA desktop option for one person: an open-source assistant that runs models fully offline.Open source
9. 9
   Chatbot UIOpen sourceA simple open-source chat interface you can host privately, backed by Supabase.★ 33.3k · MIT
10. 10
    DifyAI toolGo beyond chat: build your own LLM apps, RAG pipelines and agents on an open-source platform.Open source