Citenook

Citenook is a private AI assistant for Mac that answers general questions, helps you write and finds answers in your own files, showing the exact sentence behind each answer. Press Option-Space in any app for Quick Ask or writing tools that rewrite, shorten or fix your text. File answers come with numbered sources that open the exact passage, and you can keep separate brains for each client or project with folder sync. It reads PDFs including scans, Word documents, spreadsheets, text, recordings, Apple Notes, Obsidian, web pages, YouTube and Notion. Personal details are hidden before any online AI request, with a preview of what gets sent, and it can work fully offline with a model on your Mac or with your own OpenAI, Anthropic, Google or OpenRouter keys. Pro adds Ollama and LM Studio, deep answers, workflows and a learned writing style. Key Features: - Cited Answers: every answer links to the exact source passage - Quick Ask Anywhere: Option-Space for questions and writing help - Project Brains: separate knowledge bases per client or project - Wide File Support: PDFs, Word, Notes, Obsidian, YouTube and more - Private by Design: hides personal data, works offline or with your keys Citenook is a private, source-backed AI assistant for your Mac, with a 30-day free trial and plans from $79 a year.