100% local · No network · No tracking

The Markdown reader
that opens instantly

mdpeek is a local-first Markdown reader and editor for macOS. Read comfortably, edit on the fly.

Download mdpeek for Mac (.pkg, 10 MB) Get it on the App Store

Now on the App Store ✓ Or grab the installer above — identical features, completely free.

Requires macOS 11 Big Sur or later · Apple Silicon & Intel · Free, no in-app purchases

Built for reading

Full GFM rendering

Tables, strikethrough, task lists, footnotes — rendered as intended.

Complete syntax highlighting

Rust, Python, TypeScript, Go, JSON, TOML, YAML and more. Light & dark aware.

Formulas & diagrams

KaTeX math and Mermaid diagrams render automatically, lazy-loaded so startup stays fast.

Three views

Preview / edit / split with synced scrolling. Safe save with ⌘S.

Folder workspace

Open a folder to browse a file tree; right-click to create, rename, or trash files.

Live reload

Save in VS Code and the preview updates automatically — fits your existing workflow.

Your documents stay yours

mdpeek collects nothing: no analytics, no tracking, no network transmission. Documents, settings and history all stay on your Mac.