mdview is a lightweight desktop Markdown viewer and WYSIWYG editor built on Rust + Tauri 2, delivering a single small binary that runs natively on Linux, macOS, and Windows. It aims squarely at the sweet spot between heavy Electron editors (Obsidian, Typora clones) and bare terminal tools like glow or bat — you get a real GUI without the 200MB memory footprint.

The feature list punches well above its weight for a zero-star repo:

• GitHub Flavored Markdown — tables, task lists, strikethrough, fenced code all render correctly out of the box
• KaTeX for math typesetting — a must for anyone writing technical notes or academic drafts
• Mermaid diagrams — flowcharts and sequence diagrams inline, no external tooling
• Live reload — edit externally in your favorite editor and watch changes propagate instantly
• Safe saves — atomic write pattern to avoid corrupting files on crashes or power loss
• Offline-first — no telemetry, no cloud sync, no login

The Tauri 2 foundation is particularly interesting. Tauri ships the OS's native webview instead of bundling Chromium, which is why the resulting binary stays tiny compared to Electron alternatives. For a Markdown viewer — a task that is fundamentally rendering HTML — this architecture is a near-perfect fit.

Who would benefit? Note-takers, technical writers, and README-tinkerers who want a proper preview alongside their editor without launching a browser tab or spinning up a static site generator. Developers on low-RAM machines or older laptops will especially appreciate the small footprint. And anyone documenting engineering work with math or diagrams gets first-class KaTeX + Mermaid rendering without configuring plugins.

It's early (zero stars, fresh push) so expect rough edges, but the scope is disciplined and the tech choices are sound.