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Document Q&A

Ask questions about your own documents and sources through retrieval-augmented generation, with cited answers.

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Document Q&A
ToolStarsLicenceTermsSelf-hostedLanguageLatestLast push
RAGFlow92kApache-2.0Open sourceYesGov1.0.0-rc12026-10-06
PrivateGPT58kApache-2.0Open sourceYesPythonv1.0.12026-10-06
LightRAG40kMITOpen sourceYesPythonv1.5.72026-10-03
Open Notebook40kMITOpen sourceYesTypeScriptv1.15.02026-10-05
Onyx32kOtherOpen coreYesPythonv4.8.42026-10-06
kotaemon26kApache-2.0Open sourceYesPythonv0.12.02026-07-14
DocsGPT18kMITOpen sourceYesPython0.21.02026-10-06
SurfSense16kOtherOpen coreYesPythonv2.1.02026-10-06
Morphik3.7kOtherSource availableYesPythonnone2026-10-05

9 tools

RAGFlow

RAGFlow is a leading open-source Retrieval-Augmented Generation (RAG) engine that fuses cutting-edge RAG with Agent capabilities to create a superior context layer for LLMs

Language
Go
Licence
Apache-2.0
Stars
92k
Latest
v1.0.0-rc1
Last push
2026-10-06
PrivateGPT

Complete API layer for private AI applications on local models: RAG, skills, tools, MCP, text-to-sql, and more. Works with any OpenAI-compatible inference server.

Language
Python
Licence
Apache-2.0
Stars
58k
Latest
v1.0.1
Last push
2026-10-06
LightRAG

[EMNLP2025] LightRAG: Simple and Fast Retrieval-Augmented Generation

Language
Python
Licence
MIT
Stars
40k
Latest
v1.5.7
Last push
2026-10-03
Onyx

Open Source AI Platform - AI Chat with advanced features that works with every LLM

Language
Python
Licence
Other
Stars
32k
Latest
v4.8.4
Last push
2026-10-06
DocsGPT

Private AI platform for agents, assistants and enterprise search. Built-in Agent Builder, Deep research, Document analysis, Multi-model support, and API connectivity for agents.

Language
Python
Licence
MIT
Stars
18k
Latest
0.21.0
Last push
2026-10-06
SurfSense

Air gapped, privacy focused open source NotebookLM alternative. Join our Discord: https://discord.gg/ejRNvftDp9

Language
Python
Licence
Other
Stars
16k
Latest
v2.1.0
Last push
2026-10-06

What these tools replace