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Research · Khoj AI

Khoj

Open-source AI second brain that chats with your docs and the web, local or hosted.

FREEMIUMOpen coreHybridWebiOSAndroidmacOSWindowsLinux

An open-source "AI second brain" for chatting with local or online models, searching across your personal documents and the internet, building custom agents, and automating research. Self-host it on your own machine, or use plugins for Obsidian, Emacs, desktop, and mobile. Licensed AGPL-3.0; a paid managed cloud tier also exists, so it's freemium.

Model support

Multi-model

  • Llama
  • Qwen
  • Gemma
  • Mistral
  • GPT
  • Claude
  • Gemini
  • DeepSeek

Local or online models; bring your own API keys.

Where it runs

  • Web
  • iOS
  • Android
  • macOS
  • Windows
  • Linux

Tags

  • #second-brain
  • #rag
  • #self-hosted
  • #open-source
  • #research
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