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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

459 tools · sorted by quality

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simple-data-analysis

Fast DuckDB-powered TypeScript library for tabular, geospatial, vector, AI, Google Sheets, and data visualization workflows on Deno, Node.js...

Score 93 GitHub stars 356 Open source
fojin

Buddhist Digital Text Platform — 10,500+ texts, 613 sources, trilingual cross-canon, AI Q&A (RAG), knowledge graph, full-text search

Score 93 GitHub stars 345 Open source
orbit

Self-hosted, OpenAI-compatible AI gateway for private RAG, natural-language data access, and tool-calling agents.

Score 93 GitHub stars 339 Open source
arcana

Embeddable RAG library for Elixir/Phoenix with agentic pipelines and dashboard

Score 93 GitHub stars 338 Open source
QA-Pilot

QA-Pilot is an interactive chat project that leverages online/local LLM for rapid understanding and navigation of GitHub code repository.

Score 93 GitHub stars 327 Open source
session-knowledge

Turn your Claude Code session history into a searchable local knowledge base — 13 MCP tools, pure stdlib, nothing leaves your machine

Score 93 GitHub stars 326 Open source
LLMVault

An intentionally vulnerable OWASP LLM Top 10 training platform for AI Security, Prompt Injection, RAG Security, Agent Security, and GenAI pe...

Score 93 GitHub stars 325 Open source
StatsPAI

StatsPAI is the first Agent-native Python library for causal inference and applied econometrics — unified API, broad cross-method coverage,...

Score 93 GitHub stars 323 Open source
tw-legal-rag

台灣法律 MCP 伺服器 + CLI(免費、免註冊、免 API key):2,250 萬筆裁判書、行政函釋、憲法法庭裁判,附引用查核。Free Taiwan legal MCP server fo...

Score 93 GitHub stars 324 Open source
advai-cli

Local-first CLI for agent skills, browser automation, knowledge bases, external CLIs, and terminal AI chat.

Score 93 GitHub stars 316 Open source
LetoReader

A free self-hostable speed reader. Highly customizable. Implements chunking (RSVP), pacing and highlighting. Modern UI and local-storage onl...

Score 92 GitHub stars 311 Open source
lawglance

A free open source RAG based AI legal assistant.

Score 92 GitHub stars 307 Open source
aft

Give your agent a proper IDE and OS. The sensorimotor cortex for coding agents (OpenCode + Pi), part of CortexKit: symbol-aware edits, seman...

Score 92 GitHub stars 307 Open source
gfm-rag

[NeurIPS'25, ICLR'26] Graph Foundation Model for Retrieval Augmented Generation

Score 92 GitHub stars 299 Open source
smart-llm-loader

smart-llm-loader is a lightweight yet powerful Python package that transforms any document into LLM-ready chunks. Spend less time on preproc...

Score 92 GitHub stars 292 Open source
llama-github

Llama-github is an open-source Python library that empowers LLM Chatbots, AI Agents, and Auto-dev Solutions to conduct Agentic RAG from acti...

Score 92 GitHub stars 293 Open source
Revornix

Revornix is an open-source, local-first AI information/markdown workspace. It helps you collect fragmented inputs, turn them into structured...

Score 92 GitHub stars 292 Open source
SkillX

SkillX: Automatically Constructing Skill Knowledge Bases for Agents

Score 92 GitHub stars 288 Open source
local-LLM-with-RAG

Running local Language Language Models (LLM) to perform Retrieval-Augmented Generation (RAG)

Score 92 GitHub stars 286 Open source
Des-CTF-Knowledge

2026最新CTF知识库:12大Web漏洞深度文章+1156篇历年大赛WP+50+脚本+Payload速查 +AI/RAG离线在线知识库

Score 92 GitHub stars 284 Open source
MindGeniusAI

An AI agent that reads your PDFs and draws editable mind maps — visible tool-calling loop, built-in RAG, bring-your-own-key, multi-provider...

Score 92 GitHub stars 281 Open source
sagents

Build interactive AI agents in Elixir with OTP supervision, middleware composition, human-in-the-loop approvals, sub-agent delegation, and r...

Score 92 GitHub stars 273 Open source
Kotlin-AI-Examples

A collection of Kotlin-based examples featuring AI frameworks such as Spring AI, LangChain4j, and more — complete with Kotlin notebooks for...

Score 92 GitHub stars 270 Open source
awesome-rag-production

A curated list of battle-tested tools, frameworks, and best practices for building scalable, production-grade Retrieval-Augmented Generation...

Score 92 GitHub stars 271 Open source
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