Read-only Markdown viewer with offline Mermaid rendering
LeanMark is a focused, read-only Markdown viewer. It renders GitHub-flavored Markdown, local images and Mermaid diagrams entirely offline using the system WebView2 runtime rather than a bundled Chromium. Raw HTML is disabled, a strict Content Security Policy is enforced, and remote content is blocked.
| Publisher | Abdulfatah Bahbouh |
|---|---|
| Version | 0.4.2 |
| Release date | 2026-10-20 |
| License | MIT |
| Installer type | zip |
| Architecture | x64 |
| Package ID | abooodbah.LeanMark |
| Dependencies | Microsoft.EdgeWebView2Runtime |
winget install --id=abooodbah.LeanMark -ewinget upgrade --id=abooodbah.LeanMark -ewinget uninstall --id=abooodbah.LeanMark -eYes. LeanMark is free and open-source software released under the MIT license.
The latest version is 0.4.2, released on Oct 20, 2026.
The download button links to the official installer published on github.com, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with 049a0a5240ccc6e9cf0fda3ff957d82efe47fd0c17d7a12530706b248ee07e2d.
LeanMark runs on Windows and is available for 64-bit (x64) systems.
Open Settings › Apps › Installed apps, find LeanMark and select Uninstall. From the command line, run winget uninstall --id=abooodbah.LeanMark -e.
Yes. LeanMark is available as a portable ZIP archive (LeanMark-v0.4.2-windows-x64.zip, 64-bit (x64)) that runs without installation. Copy it to any folder or USB drive and run it from there.
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