Top Python RAG repositories on GitHub

Retrieval-augmented generation pipelines, embeddings, and grounding tooling. Filtered to projects whose primary language is Python.

Ranked by stars across 1,190 Python repositories tagged rag. Refreshed daily.

1
langchain-ai/langchain★ 149,038 · ⑂ 25,065
The agent engineering platform.
- ai
- anthropic
- gemini
- langchain
- llm
- openai
2
Shubhamsaboo/awesome-llm-apps★ 143,905 · ⑂ 21,173
100+ AI Agents, Agent Skills and RAG Apps - Free and Open Source.
- llms
- rag
- python
- agents
3
Graphify-Labs/graphify★ 142,488 · ⑂ 13,624
Turn any codebase, with its docs, SQL schemas, configs, and PDFs, into a queryable knowledge graph. A /graphify skill for Claude Code, Cursor, Codex, and Gemini CLI: local deterministic AST parsing, every edge explained, no vector store.
- claude-code
- graphrag
- knowledge-graph
- codex
- openclaw
- skills
4
PaddlePaddle/PaddleOCR★ 92,272 · ⑂ 11,617
Turn any PDF or image document into structured data for your AI. A powerful, lightweight OCR toolkit that bridges the gap between images/PDFs and LLMs. Supports 100+ languages.
- ocr
- chineseocr
- pdf2markdown
- pp-ocr
- pp-structure
- document-parsing
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5
unclecode/crawl4ai★ 86,913 · ⑂ 9,050
Official Crawl4AI Cloud: a hosted web scraping, extraction, and search API for AI agents. Free API key, 1,000 credits a month, no card. Fully open source: this repo is the Apache-2.0 crawler that powers it, and you can self-host it.
- ai
- ai-agents
- crawler
- data-extraction
- llm
- markdown
6
datawhalechina/hello-agents★ 86,055 · ⑂ 10,720
📚 《从零开始构建智能体》——从零开始的智能体原理与实践教程
- agent
- tutorial
- llm
- rag
7
headroomlabs-ai/headroom★ 78,869 · ⑂ 6,163
Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. 20% fewer tokens for coding agents, 60-95% fewer tokens for JSON, same answers. Library, proxy, MCP server.
- agent
- ai
- anthropic
- compression
- context-engineering
- context-window
8
mem0ai/mem0★ 68,420 · ⑂ 8,120
The Memory Layer for AI Agents - Drop-in memory infrastructure for AI agents and apps. Context that persists. Built for production.
- ai
- chatgpt
- llm
- python
- rag
- long-term-memory
9
pathwaycom/serviette★ 58,729 · ⑂ 1,542
A no-code RAG server that keeps answers in sync with your documents. Works with 8 vector databases. Built on Pathway.
- pathway
- vector-database
- retrieval-augmented-generation
- rag
- chromadb
- document-qa
10
bojieli/ai-agent-book★ 57,169 · ⑂ 6,599
《深入理解 AI Agent：设计原理与工程实践》（李博杰著）开源主仓库：全书正文、编译版 PDF 与按章配套代码
- agent
- agent-memory
- ai-agent
- book
- coding-agent
- context-engineering
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11
HKUDS/DeepTutor★ 55,086 · ⑂ 6,750
DeepTutor: Lifelong Personalized Tutoring. https://deeptutor.info/.
- ai-tutor
- deepresearch
- interactive-learning
- multi-agent-systems
- rag
- ai-agents
12
run-llama/llama_index★ 52,812 · ⑂ 8,512
LlamaIndex is the document processing platform for AI
- agents
- application
- data
- fine-tuning
- framework
- llamaindex
13
langchain-ai/langgraph★ 44,476 · ⑂ 7,651
Build resilient agents.
- agents
- ai
- ai-agents
- chatgpt
- deepagents
- enterprise
14
HKUDS/LightRAG★ 40,534 · ⑂ 5,761
[EMNLP2025] LightRAG: Simple and Fast Retrieval-Augmented Generation
- knowledge-graph
- large-language-models
- retrieval-augmented-generation
- genai
- graphrag
- llm
15
VectifyAI/PageIndex★ 39,987 · ⑂ 3,442
📑 PageIndex: Document Index for Vectorless, Reasoning-based RAG
- agentic-ai
- agents
- ai
- ai-agents
- context-engineering
- llm
16
chatchat-space/Langchain-Chatchat★ 38,713 · ⑂ 6,255
Langchain-Chatchat（原Langchain-ChatGLM）基于 Langchain 与 ChatGLM, Qwen 与 Llama 等语言模型的 RAG 与 Agent 应用 | Langchain-Chatchat (formerly langchain-ChatGLM), local knowledge based LLM (like ChatGLM, Qwen and Llama) RAG and Agent app with langchain
- chatglm
- langchain
- llm
- knowledge-base
- llama
- chatbot
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17
khoj-ai/khoj★ 37,991 · ⑂ 2,531
Your AI second brain. Self-hostable. Get answers from the web or your docs. Build custom agents, schedule automations, do deep research. Turn any online or local LLM into your personal, autonomous AI (gpt, claude, gemini, llama, qwen, mistral). Get started - free.
- semantic-search
- emacs
- obsidian-md
- chat
- chatgpt
- ai
18
virgiliojr94/book-to-skill★ 36,972 · ⑂ 3,919
Turn any technical book PDF into a Claude Code skill — ready to study, reference, and use while you work.
- agent-skills
- ai-agents
- context-engineering
- document-processing
- edtech
- knowledge-base
19
microsoft/graphrag★ 36,560 · ⑂ 3,869
A modular graph-based Retrieval-Augmented Generation (RAG) system
- graphrag
- rag
- llm
- llms
- gpt
- gpt-4

20
onyx-dot-app/onyx★ 33,217 · ⑂ 4,706
Open Source AI Platform - AI Chat with advanced features that works with every LLM
- enterprise-search
- rag
- ai-chat
- chatgpt
- gen-ai
- nextjs
21
getzep/graphiti★ 32,529 · ⑂ 3,336
Build Real-Time Knowledge Graphs for AI Agents
- agents
- graph
- llms
- rag
22
ScrapeGraphAI/Scrapegraph-ai★ 32,508 · ⑂ 3,321
Python scraper based on AI
- scraping
- scraping-python
- llm
- web-crawler
- web-scraping
- ai-scraping
23
deepset-ai/haystack★ 26,927 · ⑂ 3,390
Open-source AI orchestration framework for building context-engineered, production-ready LLM applications. Design modular pipelines and agent workflows with explicit control over retrieval, routing, memory, and generation. Built for scalable agents, RAG, multimodal applications, semantic search, and conversational systems.
- semantic-search
- information-retrieval
- ai
- python
- large-language-models
- generative-ai
24
Cinnamon/kotaemon★ 25,853 · ⑂ 2,167
An open-source RAG-based tool for chatting with your documents.
- chatbot
- llms
- open-source
- rag
25
vanna-ai/vanna★ 23,806 · ⑂ 2,551
🤖 Chat with your SQL database 📊. Accurate Text-to-SQL Generation via LLMs using Agentic Retrieval 🔄.
- agent
- ai
- data-visualization
- database
- llm
- sql

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Find Python engineers shipping RAG

The list above ranks the most-starred public Python repositories tagged with the RAG topic, drawn from the public GitHub graph. Across 1,190 matching repositories, the contributors are a tight cluster of engineers with both Python chops and real RAG experience.

That overlap is rare. Most Python engineers haven’t shipped RAG, and most RAG maintainers don’t write Python. The people on this list’s contributor graph are the ones who do both.

Refolk turns this list into a search. Ask for “Python RAG maintainers hiring” or “Python engineers shipping RAG in 2025” and Refolk returns a ranked shortlist with the commits, profiles, and projects behind each name.

How this list is built

Refolk searched GitHub for public Python repositories tagged with the RAG topic, ranked them by stargazer count, and kept those with at least 25 stars. The list refreshes once a day.

Last refreshed: Thu, 05 Nov 2026 02:29:01 GMT

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By stars, with forks and recent activity as tiebreakers, read from the public GitHub API. The methodology section above has the details.

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The ranking re-renders at least daily. Last refreshed: Thu, 05 Nov 2026 02:29:01 GMT.

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