Coffee
A quiet Markdown editor for Mac, with sums in your notes
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Coffee is a native Mac Markdown editor. Your notes stay plain Markdown files in a folder you choose. Answers to sums appear beside the line, maths and Mermaid diagrams are drawn natively, and you review every change an AI tool makes to a note. 14 days free.
PH · launched Nov 10, 2026 · 90 upvotes (top 1%) · 0 views
Niche: markdown editors and viewers · 158 launches, 13 in the last 7 days ▲ +30% · Explore this niche →
Category and tags
- Horizontal
- Prosumer
- Not AI
- Commercial product
- Productivity
- Notes
Visit website ↗ Source listing ↗
More like this: all 158 launches in markdown editors and viewers →
Could you build this?
Yes A Markdown editor with live rendering, inline calculations, and Mermaid diagrams is well supported by existing libraries, and AI change review is a diff UI over plain files.
Competitors
Other products that read as similar to this one : 370 launches clear the similarity bar, closest 8 shown.
Attention rank: #4 of 371 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 356 days after the earliest competitor.
- inkwell - Write without distraction. · ph · 2026-09-14 · 3 upvotes · similarity 0.59
- Markdown for Mac · ph · 2026-10-24 · 1 upvotes · similarity 0.56
- Markly · ph · 2026-09-25 · 62 upvotes · similarity 0.54
- Noteline · ph · 2026-10-31 · 2 upvotes · similarity 0.54
- Markling · ph · 2026-09-17 · 1 upvotes · similarity 0.54
- Building a Markdown editor for Mac, iOS and web · hn · 2026-09-27 · 69 upvotes · similarity 0.53
- Plainkeep · ph · 2026-11-01 · 2 upvotes · similarity 0.52
- Lisible · ph · 2026-10-11 · 1 upvotes · similarity 0.52
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.