rustdown

A fast, native Markdown editor built in Rust.

✨ Features

🖊️ Edit · Preview · Side-by-side — three modes, one keystroke to switch
🎨 Syntax highlighting — headings, code fences, bold, links, and more
📑 Navigation panel — jump to any heading instantly
🔍 Find & Replace — search across your document
📝 Format on demand — respects .editorconfig (trailing whitespace, final newline, line endings)
👁️ Live preview — full GFM rendering with tables, task lists, strikethrough, and images
⚡ Fast — native GPU-accelerated UI, instant startup, zero Electron
🔄 Live reload — detects external file changes with 3-way merge for dirty buffers
💾 Remembers your preferences — zoom, mode, nav panel, and heading colours persist across sessions
🖱️ Drag & drop — open .md files by dropping them in

📦 Install

Download a pre-built binary from Releases, or build from source:

cargo install --git https://github.com/teh-hippo/rustdown.git rustdown

sudo apt-get install libwayland-client0 libxkbcommon0 libxkbcommon-x11-0 libgtk-3-0

🚀 Usage

rustdown                    # new document
rustdown README.md          # open a file (starts in Preview mode)
rustdown -s README.md       # open in Side-by-side mode
rustdown -p                 # start in Preview mode

⌨️ Keyboard Shortcuts

Ctrl on Linux/Windows, Cmd on macOS.

🖥️ Platforms

License

MIT

Bundled fonts are licensed separately — see THIRD-PARTY-NOTICES.md.

lib.rs:

rustdown-md — a custom Markdown preview renderer for egui.

Renders parsed Markdown (via pulldown-cmark) directly into egui widgets, supporting configurable heading colours/sizes and viewport-culled scrolling.