RAG

Open-source RAG frameworks

Retrieval-augmented generation (RAG) makes a language model answer from your own documents. The text is split into chunks, turned into vectors and stored in an index, and the most relevant chunks are added to the prompt when a question comes in. The projects here cover the whole pipeline or one part of it: document parsing, vector search, or a complete question-answering app.

How to choose

Answer quality in RAG depends mostly on retrieval, not on the model. Compare how each project handles difficult documents such as PDFs, tables and scans, whether it supports hybrid search that combines keywords with vectors and re-ranking, and whether it shows which sources an answer came from.

Most-starred projects

337–360 of 596

curiousily

AI-Bootcamp

★ 946

Self-paced bootcamp on Generative AI. Tutorials on ML fundamentals, Ollama, LLMs, RAGs, LangChain, LangGraph, Fine-tuning, DSPy & AI Agents (CrewAI), (Using ChatGPT, gpt-oss, Claude, Qwen, Gemma, Llama, Gemini)

Jupyter Notebook

weaviate

recipes

★ 946

This repository shares end-to-end notebooks on how to use various Weaviate features and integrations!

Jupyter Notebook

tingaicompass

AI-Compass

★ 945

“AI-Compass”将为社区指引在 AI 技术海洋中航行的方向，无论你是初学者还是进阶开发者，都能在这里找到通往 AI 各大方向的路径。旨在帮助开发者系统性地了解 AI 的核心概念、主流技术、前沿趋势，并通过实践掌握从理论到落地的全过程。

Python

kossakovsky

selfhost-ai

★ 933

🚀 Self-hosted AI automation platform. Deploy n8n, Ollama, Flowise, RAG, Supabase & 30+ tools with one command. Auto HTTPS. Free Zapier/Make alternative.

Shell

SylphxAI

pdf-reader-mcp

★ 929

Give your AI agent eyes for PDFs — structured text, tables, OCR, visual evidence, and page-level citations via MCP. Native Rust, local-first.

TypeScript

EthanYoQ

AI-Novel-Writer

★ 916

AI 小说创作软件：把灵感、角色、世界观、大纲、章节写作、审稿和修稿组织成可控流程；提供 Windows/macOS 桌面版、Ollama 与 DSH 插件预览。

TypeScript

tophant-ai

aibeat

★ 913

Break your AI before they do. Join Discord: https://discord.gg/8A6mFckxZ

MDX

explosion

spacy-layout

★ 912

📚 Process PDFs, Word documents and more with spaCy

Python

danny-avila

rag_api

★ 900

ID-based RAG FastAPI: Integration with Langchain and PostgreSQL/pgvector

Python

Shy2593666979

AgentChat

★ 894

AgentChat 是一个基于 LLM 的智能体交流平台，内置默认 Agent 并支持用户自定义 Agent。通过多轮对话和任务协作，Agent 可以理解并协助完成复杂任务。项目集成 LangChain、Function Call、MCP 协议、RAG、Memory、HITL、Skill、Milvus 和 ElasticSearch 等技术，实现高效的知识检索与工具调用，使用 FastAPI 构建高性能后端服务。

Python

lightonai

pylate

★ 893

Late Interaction Models Training & Retrieval

Python

vndee

local-talking-llm

★ 890

A talking LLM that runs on your own computer without needing the internet.

Python

Deodat-Lawson

LaunchStack

★ 887

AI-powered StartUp Accelerator Engine built with Next.js, LangChain, PostgreSQL + pgvector. Upload, organize, and chat with documents. Includes predictive missing-document detection, role-based workflows, and page-level insight extraction.

TypeScript

nuwax-ai

nuwax

★ 887

Nuwax Agent OS - An enterprise-grade AI Agent Development and Operation Platform - Providing a complete solution for agent creation and distribution, knowledge base management, model proxy, memory system, and plugin ecosystem.

TypeScript

CodeAbra

iai-personal-memory-engine

★ 883

A cyber brain for your AI. It never forgets a detail, remembers exactly what you said, and learns how you work over time. Free, local, works with Cursor, Claude Code, Codex, OpenClaw, Hermes and more. MIT.

Python

hananedupouy

LLMs-in-Finance

★ 882

LLMs in Finance - Generative AI - AI Agents

Jupyter Notebook

orneryd

NornicDB

★ 876

Nornicdb is a distributed low-latency, Graph+Vector, Temporal MVCC with all sub-ms HNSW search, graph traversal, and writes. Using Neo4j Bolt/Cypher and qdrant's gRPC means you can switch with no changes while adding intelligent features like schemas, managed embeddings, reranking+llm, GPU accel, Auto-TLP, Policy-based Memory Decay, and MCP server.

xberg-io

html-to-markdown

★ 873

High performance and CommonMark compliant HTML to Markdown converter. Maintained by the Kreuzberg team. Kreuzberg is a fast, polyglot document intelligence engine with a Rust core. It extracts structured data from 98+ document formats using streaming parsers and built-in OCR.

HTML

PrinceSinghhub

Ultimate-AI-Engineer-Roadmap-2026

★ 865

Ultimate AI Engineer Roadmap 2026 - built specifically for your context as an AI Architect building PrinceSinghAI, PrinceSinghDev, Multi-LLM orchestration, RoadmapAI, CodeLLM, and AskAI, Global AI Search