Marten: Markdown Code Notes

Marten is a clean, distraction-free note app built for developers.

Write in Markdown with syntax-highlighted code blocks, then turn any note into a project with just the tabs you need. Keep a plain note, or add API keys, secrets, passwords, social logins, links, references, and checklists. Each filled tab becomes an item, so one note holds everything about a project.

FEATURES

Markdown editor Fenced code blocks with an olive, editor-style highlight. Toggle a live preview anytime.

Project tabs Note, List, API, Ref, Link, Secret, Password, and Social. Add only the tabs you want with a tap.

Secrets vault Store API keys, passwords, and accounts with masked fields and a quick reveal.

Checklists Reminders-style lists with tap-to-complete items.

Tags and search Organize with #hashtags and find anything instantly with full-text search.

Sync, your way Local-first storage that works offline, with optional cloud sync across your devices. Turn sync on or off whenever you want.

Built for every screen A native app for iPhone, iPad, and Mac, with an adaptive three-column layout on iPad and Mac. Light and dark themes.

Private by design Your notes are yours. No ads, no tracking, and you can delete your account and all data from inside the app at any time.

Marketing URL: https://marten.kodefoundry.com
Privacy Policy URL: https://marten.kodefoundry.com/privacy