FSNotes is a fast, native note-taking app for macOS and iOS that stores notes as portable Markdown or plain-text files.
The tool addresses vendor lock-in by keeping all notes in standard file formats rather than proprietary databases, allowing you to open and edit them with any compatible application. It emphasizes performance across large collections, handling thousands of notes with smooth search and navigation. The app integrates with your existing workflow through support for multiple folders, external editors, iCloud Drive, Dropbox, and optional Git backups. Beyond basic note storage, it offers wiki-style linking with double-bracket syntax, AES-256 encryption for private notes, and rendering support for code blocks, Mermaid diagrams, and MathJax.
FSNotes suits developers and writers who want to own their note data and avoid being locked into a single platform or service. It works well for anyone maintaining large personal knowledge bases who values portability and the ability to version-control notes through Git. The app is distributed through the Mac App Store and iOS App Store as a paid application, with updates provided through those channels.
The project is maintained as an open-source Swift application released under the MIT license. Development activity shows consistent engagement with the codebase, with regular updates delivered through the App Store to support the tool's continued evolution.
