A native Markdown viewer for macOS and Windows. Renders .md files with full support for GitHub-flavored Markdown, math equations, diagrams, and syntax highlighting. No editing, no workspace — just open a file and read.
- GitHub-flavored Markdown rendering
- Math equation support (KaTeX) — inline
$...$and block$$...$$ - Mermaid diagram support (flowcharts, sequence diagrams, etc.)
- Syntax-highlighted code blocks
- Live reload — auto-refreshes when the file changes on disk
- Light / dark mode
- Multi-window support (
Cmd+N/Ctrl+N) - Drag-and-drop file opening
- Print / export to PDF (
Cmd+P/Ctrl+P) - Find in document (
Cmd+F/Ctrl+For/) with live highlighting - Zoom in/out (
Cmd/Ctrl +/-/0) - Vim-style navigation (
j/k,d/e,g/G,h/l) - Keyboard shortcuts help (
?) - File association — set as default viewer for
.mdfiles - Native app built with Tauri (~5MB)
Homebrew:
brew install --cask yoaquim/tap/covalent
Manual: Download the .dmg from Releases, open it, and drag to Applications.
After installing (either method), remove the quarantine flag:
xattr -cr /Applications/Covalent.app
The app isn't code-signed with an Apple Developer certificate, so macOS flags it. This is a one-time step.
Download the .exe installer from Releases and run it.
npm install
npx tauri build
Requires Rust and Node.js.