mdpreview

mdpreview

Markdown preview server with live reload.

Usage

go install github.com/henrywallace/mdpreview@latest
mdpreview README.md

Opens a local server at http://127.0.0.1:8080 with a GitHub-styled preview. The page updates automatically when the file changes on disk.

mdpreview -addr :3000 README.md   # custom port
mdpreview -debug README.md        # verbose logging

Rendering

• GFM via goldmark (tables, task lists, strikethrough, autolinks)
• Syntax highlighting via Shiki with github-light / github-dark themes (TextMate grammars, same as VS Code and GitHub)
• Math via KaTeX ($inline$ and $$block$$)
• GitHub alerts (> [!NOTE], > [!WARNING], > [!TIP], > [!IMPORTANT], > [!CAUTION])
• GitHub Primer CSS with system dark mode detection
• Relative images and links resolve from the markdown file's directory

Development

Rebuild the client bundle after editing client/main.ts:

make client   # requires bun or npm
make build    # or just: make