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Best RAG Tools

RAG (retrieval-augmented generation) connects your documents and data to LLMs. Browse frameworks and platforms below, then compare top picks for stack fit.

Open compare table Related: Best LLM Chat Tools · Best Coding Agent Tools · Best Open Source AI Tools · Best AI Automation Tools

Top tools

450 tools · sorted by quality

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LangChain

C# implementation of LangChain. We try to be as close to the original as possible in terms of abstractions, but are open to new entities.

Score 95 GitHub stars 1,075 Open source
Agent_Memory_Techniques

Agent memory for LLMs: 30 runnable Jupyter notebooks covering conversation buffers, vector stores, knowledge graphs, episodic and semantic m...

Score 95 GitHub stars 1,073 Open source
agents-flex

Agents-flex is A lightweight Java AI agent development framework (positioned as a counterpart to Spring AI). It supports features such as RA...

Score 95 GitHub stars 1,058 Open source
algebrica

Algebrica is free and open a mathematical knowledge base dedicated to clarity, structure, and conceptual coherence.

Score 95 GitHub stars 1,029 Open source
fastembed-rs

Rust library for generating vector embeddings and reranking locally!

Score 95 GitHub stars 1,018 Open source
GraphRAG-SDK

Build fast and accurate GenAI apps with GraphRAG SDK at scale 🌟

Score 95 GitHub stars 1,000 Open source
agent-memory

Long-term memory runtime for AI agents — plain Markdown as the source of truth, local ranked retrieval, and an independent sleep-time Manage...

Score 95 GitHub stars 966 Open source
smartcore

A comprehensive library for machine learning and numerical computing. Apply Machine Learning with Rust leveraging first principles.

Score 95 GitHub stars 954 Open source
AI-Bootcamp

Self-paced bootcamp on Generative AI. Tutorials on ML fundamentals, Ollama, LLMs, RAGs, LangChain, LangGraph, Fine-tuning, DSPy & AI Agents...

Score 95 GitHub stars 946 Open source
curvine

AI-Native & Cloud-Native FS: A high-performance file semantic layer for cloud object storage, integrated with high-speed cache. CNCF Sandbo...

Score 95 GitHub stars 948 Open source
aimock

Mock everything your AI app talks to — LLM APIs, MCP, A2A, AG-UI, vector DBs, search. One package, one port, zero dependencies.

Score 95 GitHub stars 941 Open source
openeverest

OpenEverest is an open-source platform for automated database, storage and LLMs provisioning and management. It supports multiple technologi...

Score 95 GitHub stars 929 Open source
auto-news

A personal news aggregator to pull information from multi-sources + LLM (ChatGPT/Gemini/Ollama via LangChain) to help us reading efficiently...

Score 95 GitHub stars 907 Open source
nuwax

Nuwax Agent OS - An enterprise-grade AI Agent Development and Operation Platform - Providing a complete solution for agent creation and dist...

Score 95 GitHub stars 891 Open source
llm-ls

LSP server leveraging LLMs for code completion (and more?)

Score 95 GitHub stars 883 Open source
StratosphereLinuxIPS

Slips, a free software behavioral Python intrusion prevention system (IDS/IPS) that uses machine learning to detect malicious behaviors in t...

Score 95 GitHub stars 884 Open source
llm-master

大模型(LLM)全栈学习路线与中文教程🔥:覆盖 Prompt Engineering、RAG、AI Agent、MCP、微调、模型部署、Transformer、AI 编程与大厂面试,从入门到...

Score 95 GitHub stars 873 Open source
catalyst

🚀 Catalyst is a C# Natural Language Processing library built for speed. Inspired by spaCy's design, it brings pre-trained models, out-of-th...

Score 95 GitHub stars 860 Open source
dipy

DIPY is the paragon 3D/4D+ medical imaging library in Python. Contains generic methods for spatial normalization, signal processing, machine...

Score 95 GitHub stars 841 Open source
openagent

What if OpenAI Deep Research and Dify were one platform? OpenAgent — harness architecture for rapidly building vertical AI agents, with deep...

Score 95 GitHub stars 805 Open source
cleanmymac-cli

Clean Xcode, Docker, Homebrew, and developer caches, remove project and AI artifacts, analyze storage, and reclaim disk space from the Termi...

Score 95 GitHub stars 799 Open source
favbox

🔖 FavBox is a local-first experimental browser extension that enhances and simplifies bookmark management without cloud storage or third-pa...

Score 94 GitHub stars 770 Open source
memorizz

MemoRizz: A Python library serving as a memory layer for AI applications. Leverages popular databases and storage solutions to optimize memo...

Score 94 GitHub stars 767 Open source
local-rag

Ingest files for retrieval augmented generation (RAG) with open-source Large Language Models (LLMs), all without 3rd parties or sensitive da...

Score 94 GitHub stars 762 Open source
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