Snapsift 
SnapProof 
Lento 
macOS
Doku
Markdown Viewer & Reader
App Store
Free
Screenshots
Open any Markdown file and see it rendered with full GitHub Flavored Markdown support. Headings, lists, tables, task lists, footnotes, and horizontal rules all display exactly as intended.
Mermaid diagrams render inline. Flowcharts, sequence diagrams, class diagrams, state charts, ER diagrams, and more. LaTeX math expressions render with KaTeX for fast, accurate mathematical notation.
Code blocks get full syntax highlighting. Dark mode adapts automatically. Live reload watches for file changes. Everything runs locally on your Mac.
Common questions
Is my data collected or shared?
No. Doku runs entirely on your Mac. No analytics, no tracking, no data sent to servers. Your privacy is guaranteed.
Is Doku free?
Doku is free to download and the core features are free to use. An optional upgrade unlocks the full feature set. There are no ads either way.
What if I don't like the app?
Apple offers full refunds within 14 days of purchase, no questions asked. Request a refund directly through the App Store if you're not satisfied.
Does it slow down my Mac?
No. It's native SwiftUI with minimal resource usage. Menu bar monitoring uses negligible CPU and memory.
Which macOS version do I need?
Doku requires macOS 14.0+. Works on both Intel and Apple Silicon Macs.