Best open-source RAG tools & vector databases for the web

Open-source retrieval-augmented generation engines and vector databases.

Filters · 2 RAG & vector DBs, Web

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Purpose

AI & LLM tooling46Chat UIs10Agents & frameworks19Local inference3RAG & vector DBs5Coding assistants6Evals & observability1Agent skills1MCP servers1Developer tools26Web frameworks9Databases & backends5Editors & IDEs1API tools1Self-hosted apps25Notes & docs9Automation7Data & analytics12Infra & DevOps6Security & identity7Communication8Media & photos15Design & creative16

Runs on

Web5Docker / self-host22Desktop2Mobile0CLI6Library / SDK29Extension / plugin0

License

Permissive2Copyleft2Source-available0Other / custom1

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Has live demo1Commit in last 90 days5

5 projects

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D

Difylanggenius/dify

Build, run and monitor LLM apps and agent workflowsPersonalEnterpriseAgents & frameworksRAG & vector DBsWebDocker / self-host★ 158kcommit 11 hours agolive demo

85worth

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O

Open Notebooklfnovo/open-notebook

Open-source NotebookLM alternativePersonalNotes & docsRAG & vector DBsWebDocker / self-host★ 40kMITcommit 10 hours ago

85worth

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g

gpt-researcherassafelovic/gpt-researcher

Autonomous deep research agent for web and local documentsPersonalAgent skillsAgents & frameworksMCP serversRAG & vector DBsWeb★ 30kApache-2.0commit 7 days ago

85worth

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F

Firecrawlfirecrawl/firecrawl

Web data API that turns sites into LLM-ready dataPersonalEnterpriseRAG & vector DBsWebDocker / self-hostLibrary / SDK★ 188kAGPL-3.0commit 13 hours ago

77worth

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K

Khojkhoj-ai/khoj

Your self-hostable AI second brainPersonalChat UIsRAG & vector DBsWebDocker / self-host★ 38kAGPL-3.0commit 2 months ago

73worth

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