Leaflet
Markdown preview and reader for Mac
devsteven
In developmentFor Mac
StatusIn developmentQuick Look works
CategoryProductivityMarkdown
Developerdevstevenone person
PlatformMacmacOS 14+
PrivacyNo networksandboxed
Preview


![Callouts and [[wiki-links]]](../img/apps/leaflet/shot-3.png)


Press Space on a Markdown file in Finder and see it rendered. Double-click it and a tiny native reader is on screen at once.
Leaflet is a Quick Look extension and a fast native reader for Markdown, made for notes that live outside any one app. It renders GitHub-flavoured Markdown safely: raw HTML is shown escaped, images are never fetched, and the app has no network access.
What’s inside
Quick Look preview
GitHub-flavoured Markdown rendered right in Finder.
Properties block
Frontmatter shown as a tidy properties table.
Obsidian-friendly
Styled [[wiki-links]] and callouts.
Light and dark
A real dark palette, not an inverted one.
Private by design
Sandboxed, no network entitlement, strict content policy.
Reader and editor
A resident native reader with a styled-source editor is next.
What’s new
- Oct 2026Quick Look extension working on the Mac. Reader app next.
- Oct 2026Started as a personal tool, named Leaflet.
Information
- Category
- Productivity
- Requires
- macOS 14 or later
- Stack
- Swift 6 · AppKit · cmark-gfm
- Privacy
- No network access
- Status
- In development
- Developer
- devsteven