Kotaemon

Kotaemon is an open-source app for asking questions about your own documents, with answers backed by citations. It gives you a private, self-hosted document question-answering tool.

Kotaemon is a self-hosted, open-source app for chatting with your own documents using retrieval-augmented generation (RAG). It gives end users a clean web interface to upload files and ask questions, and it answers with detailed citations you can inspect in an in-browser PDF viewer with highlights, so you can check where each answer came from. It supports multi-user logins, private and public document collections, and works with both cloud LLM providers (OpenAI, Azure, Cohere, Groq) and local models via Ollama or llama-cpp-python. Under the hood it uses a hybrid retrieval pipeline (full-text plus vector search) with re-ranking, and supports multimodal parsing of figures and tables plus more advanced reasoning like question decomposition and GraphRAG indexing. It is aimed at both non-technical users who just want document Q&A and developers who want a customizable Gradio-based RAG framework to build on.