Khoj

Turns your documents and the web into a searchable, chat-based personal AI assistant. Khoj is an applied artificial intelligence company building safe, useful AI software for humans. The core open-source version is free to use and self-host. Optional paid cloud hosting exists for easier setup and higher usage limits. With local LLMs like Llama or Mistral you can run everything offline and keep data private on your device. It integrates directly into Obsidian via a plugin, appearing in the side pane for seamless chatting and searching of your vault. It handles markdown, org-mode, PDFs, images, Word files, Notion exports and more for indexing and chatting. You can create custom agents with personalized knowledge, behavior and tools for automation or research tasks. Khoj excels at personal documents and privacy with self-hosting, while Perplexity focuses more on fast web research.