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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

480 tools · sorted by quality

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zettelforge

Agentic memory for CTI in Python — STIX knowledge graphs, threat-actor alias resolution, offline-first RAG, MCP server for Claude Code and L...

Score 89 GitHub stars 63 Open source
ToolRegistry

ToolRegistry: A Protocol-Agnostic Tool Management Library for Function-Calling LLMs (OpenAI, Anthropic, Gemini, LangChain, MCP)

Score 89 GitHub stars 62 Open source
scribe

LLM-managed personal knowledge base. Auto-extracts from git repos, Claude Code sessions (via ccrider FTS5), and iMessage bookmarks. Cross-pr...

Score 89 GitHub stars 61 Open source
bgts-context-engine

Deterministic code-graph context engine for AI coding agents - PostgreSQL + Apache AGE + pgvector, MCP & REST, no LLM in the loop.

Score 89 GitHub stars 60 Open source
kirby-mcp

CLI-first MCP server for composer-based Kirby CMS projects — inspect blueprints/templates/plugins, interact with a real Kirby runtime, and u...

Score 89 GitHub stars 60 Open source
milvus-model

A library integrating embedding and reranker models from OpenAI, SentenceTransformers etc for semantic search in vector database.

Score 89 GitHub stars 60 Open source
langchain-oracle

The Oracle LangChain integration provides official LangChain support for Oracle’s Generative AI and AI Platform services, enabling developer...

Score 89 GitHub stars 60 Open source
RAG-Enterprise

🚀 100% local RAG system with one-command setup. Your data never leaves your server.

Score 89 GitHub stars 60 Open source
zer0dex

A local dual-layer memory pattern for AI agents: a compact, human-readable markdown index paired with semantic retrieval from a local vector...

Score 89 GitHub stars 60 Open source
OmniMem

Self-hosted semantic memory for AI Agents. Persistent sessions, experience scoring, and a graveyard for dead ends, backed by knowledge acqui...

Score 89 GitHub stars 59 Open source
StarAgent

Lightweight agent multiplexer, all in one Web dashboard

Score 89 GitHub stars 59 Open source
snippets

Automatically extracts, processes, and indexes code snippets from GitHub repositories into a searchable vector database.

Score 89 GitHub stars 58 Open source
HuggingFace

C# SDK for the Hugging Face API -- inference, embeddings, and model hub

Score 89 GitHub stars 58 Open source
Xcode-Disk-Cleanup-Agent-Skill

Audit Xcode developer storage, report recoverable GiB, and clean only explicitly approved items.

Score 89 GitHub stars 57 Open source
MeetingTax

Meeting cost and focus-fragmentation analyzer - turn an ICS calendar into a cost summary and a fragmented-time report.

Score 89 GitHub stars 57 Open source
srclight

Deep code indexing MCP server for AI agents. 25 tools: hybrid FTS5 + embedding search, call graphs, git blame/hotspots, build system analysi...

Score 89 GitHub stars 57 Open source
dcode-agent-kit

A Claude Code skill that scaffolds ready-to-run LangChain Deep Agents and dcode CLI agents into any project.

Score 89 GitHub stars 56 Open source
reader-source

Open-source native macOS AI reading workspace for PDF, EPUB, and TXT with highlights, notes, book chat, and local-first storage. Download: r...

Score 89 GitHub stars 56 Open source
docsmint

Open-source knowledge base for people and AI agents. Rich-text editing, hybrid search, GraphRAG, and MCP. Self-host with Docker or use DocsM...

Score 89 GitHub stars 55 Open source
Brevia

Brevia · 言录(https://brevia.work): A minimal meeting recorder that stays on your device. Transcribe, distill with AI, remember—without the...

Score 89 GitHub stars 54 Open source
frai

Open-source toolkit for responsible AI: CLI + SDK to scan code, collect evidence, and generate model cards, risk files, evals, and RAG index...

Score 89 GitHub stars 53 Open source
silica-core

Retrieval tools for coding agents, no model in the loop: files, search, read, code_pack and write_note over the folder your session is opene...

Score 89 GitHub stars 53 Open source
KalamDB

KalamDB — a lightweight, real-time, storage-efficient SQL database. Designed for per-user data isolation and scalable performance — ideal fo...

Score 89 GitHub stars 53 Open source
mpibind

Pragmatic, Productive, and Portable Affinity for HPC

Score 89 GitHub stars 53 Open source
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