Khoj

Open-source

4.3

Chat & Research

Self-hostable AI second brain that gets answers from the web or your documents with custom agent building.

About Khoj

Khoj is an AI-powered personal knowledge assistant that can be self-hosted for privacy. It integrates with platforms like Obsidian and Emacs, supports multiple AI models, and enables building custom agents for research automation, with 34.2k GitHub stars.

Best For

Researchers building personal AI knowledge assistants
Privacy-focused users wanting self-hosted AI research tools

Pros & Cons

Pros

+ Self-hostable for complete data privacy and control
+ Works with both cloud and local AI models
+ Deep integration with popular knowledge management tools

Cons

- Self-hosting requires technical setup and maintenance
- Some features require additional configuration

Pricing

Open source and free to self-host; cloud version available for convenience

Key Features

Self-hostable AI assistant for privacy-focused research
Document integration with Obsidian, Emacs, and file systems
Custom agent building for research automation
Supports GPT, Claude, Gemini, LLaMA, and local models