Kotaemon is a clean, open-source RAG interface for chatting with your documents, with citations, multi-user support and a customizable pipeline for developers.
| Category | Self-hosted chat UI |
| Type | RAG chat UI |
| License | Apache-2.0 |
| Runs locally | Self-hosted |
| Built with | Python |
| Skill level | Beginner |
| Best for | teams wanting a ready-made document QA UI |
Other open-source self-hosted chat ui tools worth comparing:
Open WebUIChatGPT-style interface over any model
LibreChatMulti-provider open-source ChatGPT clone
Lobe ChatModern, design-forward chat framework
AnythingLLMAll-in-one app to chat with your documents
big-AGIPro-grade chat for many models
ChatboxDesktop client for many AI models
NextChatLightweight ChatGPT-style UI, deploys in one click
Chatbot UIClean open ChatGPT clone with files and profiles
HuggingChat UIThe interface behind HuggingChat, self-hostable
KhojYour AI second brain over your notesKotaemon is free and open-source (Apache-2.0 license), so you can use, self-host and modify it at no cost.
Yes. Kotaemon is designed to run on your own machine or server, keeping your data private.
Popular open-source alternatives include Open WebUI, LibreChat, Lobe Chat. See the comparisons above to choose.
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