RAG, Search & Knowledge

Vector DBs, semantic search, RAG pipelines

59 tools ยท All-time leaderboard

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What is RAG, Search & Knowledge?

RAG, Search & Knowledge covers 59 AI tools, with the top 10 averaging 67,272 community votes. 41 of the tools here are open source or have significant community traction. This page ranks them by all-time community votes, not by paid placement.

The current top three: dify, langchain, firecrawl. Each entry below shows the tool, its open-source stars or community size, and a short description from the project's own README. Click through to a full review for pricing, alternatives, and what it's actually good at.

Looking for something specific? Try the AI tool search engine โ€” it indexes every tool on saas.pet and will surface what fits your workflow, not just what has the most votes.

๐Ÿ† Top 30 in RAG, Search & Knowledge

๐Ÿฅ‡
GitHub

dify

Build Agentic workflows, RAG pipelines, with rich AI model and tool support on one collaborative workspace. Deploy on cloud, VPC, or self-hosted, so teams move from prototype to production without reb...

โ˜… 150,955 votes
๐Ÿ’ฌ 0
๐Ÿ“… 3d
๐Ÿฅˆ
GitHub

langchain

The agent engineering platform.

โ˜… 139,626 votes
๐Ÿ’ฌ 0
๐Ÿฅ‰
GitHub

firecrawl

The API to search, scrape, and interact with the web at scale. ๐Ÿ”ฅ

โ˜… 134,466 votes
๐Ÿ’ฌ 0
#4
GitHub

milvus

Milvus is a high-performance, cloud-native vector database built for scalable vector ANN search

โ˜… 44,833 votes
๐Ÿ’ฌ 0
#5
GitHub

quivr

Opiniated RAG for integrating GenAI in your apps ๐Ÿง  Focus on your product rather than the RAG. Easy integration in existing products with customisation! Any LLM: GPT4, Groq, Llama. Any Vectorstore:...

โ˜… 39,166 votes
๐Ÿ’ฌ 0
#6
GitHub

Langchain-Chatchat

Langchain-Chatchat๏ผˆๅŽŸLangchain-ChatGLM๏ผ‰ๅŸบไบŽ Langchain ไธŽ ChatGLM, Qwen ไธŽ Llama ็ญ‰่ฏญ่จ€ๆจกๅž‹็š„ RAG ไธŽ Agent ๅบ”็”จ | Langchain-Chatchat (formerly langchain-ChatGLM), local knowledge based LLM (like ChatGLM, Qwen and Ll...

โ˜… 38,187 votes
๐Ÿ’ฌ 0
#7
GitHub

Retrieval-based-Voice-Conversion-WebUI

Easily train a good VC model with voice data <= 10 mins!

โ˜… 36,052 votes
๐Ÿ’ฌ 0
#8
GitHub

qdrant

Qdrant - High-performance, massive-scale Vector Database and Vector Search Engine for the next generation of AI. Also available in the cloud https://cloud.qdrant.io/

โ˜… 32,436 votes
๐Ÿ’ฌ 0
#9
GitHub

FastGPT

FastGPT is a knowledge-based platform built on the LLMs, offers a comprehensive suite of out-of-the-box capabilities such as data processing, RAG retrieval, and visual AI workflow orchestration, letti...

โ˜… 28,521 votes
๐Ÿ’ฌ 0
#10
GitHub

chroma

Search infrastructure for AI

โ˜… 28,474 votes
๐Ÿ’ฌ 0
#11
GitHub

semantic-kernel

Integrate cutting-edge LLM technology quickly and easily into your apps

โ˜… 28,156 votes
๐Ÿ’ฌ 0
#12
GitHub

mlflow

The open source AI engineering platform for agents, LLMs, and ML models. MLflow enables teams of all sizes to debug, evaluate, monitor, and optimize production-quality AI applications while controllin...

โ˜… 27,313 votes
๐Ÿ’ฌ 0
๐Ÿ“… 4d
#13
GitHub

llama-cookbook

Welcome to the Llama Cookbook! This is your go to guide for Building with Llama: Getting started with Inference, Fine-Tuning, RAG. We also show you how to solve end to end problems using Llama model f...

โ˜… 18,544 votes
๐Ÿ’ฌ 0
๐Ÿ“… 4d
#14
GitHub

DocsGPT

Private AI platform for agents, assistants and enterprise search. Built-in Agent Builder, Deep research, Document analysis, Multi-model support, and API connectivity for agents.

โ˜… 18,186 votes
๐Ÿ’ฌ 0
๐Ÿ“… 4d
#15
GitHub

Qwen-Agent

Agent framework and applications built upon Qwen>=3.0, featuring Function Calling, MCP, Code Interpreter, RAG, Chrome extension, etc.

โ˜… 16,577 votes
๐Ÿ’ฌ 0
#16
GitHub

weaviate

Weaviate is an open-source vector database that stores both objects and vectors, allowing for the combination of vector search with structured filtering with the fault tolerance and scalability of a c...

โ˜… 16,346 votes
๐Ÿ’ฌ 0
#17
GitHub

memvid

Memory layer for AI Agents. Replace complex RAG pipelines with a serverless, single-file memory layer. Give your agents instant retrieval and long-term memory.

โ˜… 15,667 votes
๐Ÿ’ฌ 0
#18
GitHub

ai-job-search

AI-powered job application framework built on Claude Code. Fork it, fill in your profile, and let Claude evaluate jobs, tailor CVs, write cover letters, and prepare you for interviews.

โ˜… 13,847 votes
๐Ÿ’ฌ 11
๐Ÿ“… 1d
#19
GitHub

txtai

๐Ÿ’ก All-in-one AI framework for semantic search, LLM orchestration and language model workflows

โ˜… 12,771 votes
๐Ÿ’ฌ 0
๐Ÿ“… 4d
#20
GitHub

bisheng

BISHENG is an open LLM devops platform for next generation Enterprise AI applications. Powerful and comprehensive features include: GenAI workflow, RAG, Agent, Unified model management, Evaluation, SF...

โ˜… 11,808 votes
๐Ÿ’ฌ 0
๐Ÿ“… 4d
#21
GitHub

coai

๐Ÿš€ Next Gen Multi-tenant AI One-Stop Solution. Builtin Admin & Billing System. Enterprise-Grade Unified LLM Gateway Support for 200+ Models And 35+ Providers, Load Balacing w/ Priority-base Routin...

โ˜… 9,269 votes
๐Ÿ’ฌ 0
๐Ÿ“… 4d
#22
GitHub

graphify

AI coding assistant skill (Claude Code, Codex, OpenCode, Cursor, Gemini CLI, and more). Turn any folder of code, SQL schemas, R scripts, shell scripts, docs, papers, images, or videos into a queryable...

โ˜… 8,611 votes
๐Ÿ’ฌ 560
๐Ÿ“… 4d
#23
GitHub

Agent-Reach

Give your AI agent eyes to see the entire internet. Read &amp; search Twitter, Reddit, YouTube, GitHub, Bilibili, XiaoHongShu โ€” one CLI, zero API fees.

โ˜… 8,398 votes
๐Ÿ’ฌ 115
๐Ÿ“… 1d
#24
GitHub

cognee

Cognee is the open-source AI memory platform for agents. Give your AI agents persistent long-term memory across sessions with a self-hosted knowledge graph engine.

โ˜… 6,417 votes
๐Ÿ’ฌ 619
๐Ÿ“… 3d
#25
GitHub

awesome-llm-apps

100+ AI Agent &amp; RAG apps you can actually run โ€” clone, customize, ship.

โ˜… 6,252 votes
๐Ÿ’ฌ 29
๐Ÿ“… 7d
#26
GitHub

DeepTutor

DeepTutor: Lifelong Personalized Tutoring. https://deeptutor.info/.

โ˜… 2,375 votes
๐Ÿ’ฌ 67
๐Ÿ“… 5d
#27
GitHub

DesktopCommanderMCP

This is MCP server for Claude that gives it terminal control, file system search and diff file editing capabilities

โ˜… 2,055 votes
๐Ÿ’ฌ 184
๐Ÿ“… 8d
#28
GitHub

TencentDB-Agent-Memory

TencentDB Agent Memory delivers fully local long-term memory for AI Agents via a 4-tier progressive pipeline, with zero external API dependencies.

โ˜… 1,790 votes
๐Ÿ’ฌ 284
๐Ÿ“… 2d
#29
GitHub

ai-agent-book

ใ€Šๆทฑๅ…ฅ็†่งฃ AI Agent๏ผš่ฎพ่ฎกๅŽŸ็†ไธŽๅทฅ็จ‹ๅฎž่ทตใ€‹๏ผˆๆŽๅšๆฐ ่‘—๏ผ‰ๅผ€ๆบไธปไป“ๅบ“๏ผšๅ…จไนฆๆญฃๆ–‡ใ€็ผ–่ฏ‘็‰ˆ PDF ไธŽๆŒ‰็ซ ้…ๅฅ—ไปฃ็ 

โ˜… 1,734 votes
๐Ÿ’ฌ 11
๐Ÿ“… 1d
#30
Product Hunt

Acti

Agentic keyboard for mobile commands and search

โ˜… 1,499 votes
๐Ÿ’ฌ 0
๐Ÿ“… 2d