krust 🦐

A fast, single-binary web terminal emulator built in Rust using Axum and xterm.js.

Name origin: A blend of krill (small sea crustaceans) and Rust.

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Features

• WebGL Acceleration: Uses xterm-addon-webgl for fast rendering without subpixel line gaps in TUIs.
• Truecolor Support: Native support for 24-bit color (COLORTERM=truecolor).
• Smart Zoom: Ctrl + MouseWheel scales font size without breaking TUI mouse tracking.
• Dynamic Tab Titles: Updates browser tab names dynamically using OSC escape sequences.
• Centered Canvas: Auto-centers character grid while matching the terminal background color.
• Real-time Resizing: Handles PTY window updates via ResizeObserver.

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Quick Start

# Clone & build
git clone [https://github.com/your-username/krust.git](https://github.com/your-username/krust.git)
cd krust
cargo build --release

# Run
./target/release/krust

Open http://localhost:3000 in your browser.