Kuku:

Kuku is an AI-assisted Markdown note-taking app for macOS that keeps your knowledge base local-first while adding a Gemini-powered writing assistant. Built with Tauri (rather than Electron) and a React 19 / Tiptap editor, it stores notes as plain Markdown files on your device and supports [[wikilinks]], backlinks and a force-directed graph view so you can navigate connections between notes visually. The built-in AI agent searches your vault, generates content, and applies edits with a Cursor-style diff preview, so you can review changes before they're written. Full-text search is indexed locally for instant retrieval, and the offline-first architecture means core functionality works without a network and your data doesn't leave the device without explicit permission. For users who pay for it, encrypted cross-device sync keeps Markdown content, wikilinks, backlinks and AI context aligned across machines. The product positions itself for knowledge workers, researchers and privacy-conscious note-takers who want a personal knowledge base without cloud vendor lock-in, with a Team tier (shared vault context with permissions) noted as coming soon. As a local-first Markdown app with AI search and editing, Kuku targets people who'd otherwise stitch together a notes app and a separate AI chat tool.

Building a private, local-first Markdown knowledge base on macOS with AI-assisted search and editing for knowledge workers and researchers