Coffee

Coffee

A quiet Markdown editor for Mac, with sums in your notes

Coffee is a native Mac Markdown editor. Your notes stay as plain Markdown files in a folder you choose, so you are not locked into a special format. Answers to sums appear beside the line, math and Mermaid diagrams are drawn natively, and you can review every change an AI tool makes to a note. Try it free for 14 days.

Launch Team / Built with

PT

Launched November 13, 2026