Kuku

Kuku is an open-source macOS app for people who want private, portable Markdown notes without lock-in. It keeps your knowledge base as ordinary local files, then adds wiki-style navigation, backlinks, graph view, fast search, and AI-assisted editing with reviewable diffs before anything changes.

Use it as a local-first alternative to Obsidian when you want AI help, transparent changes, and optional encrypted sync while keeping control of your notes.