rubyfmt.run

A web-based playground that runs rubyfmt via WebAssembly in the browser.

Prerequisites

• Rust
• Node.js (v18+)
• Git (for cloning the Emscripten SDK)

The build script will automatically install:

• Emscripten SDK
• Rust wasm32-unknown-emscripten target

Building

Run the full build (WASM + web assets):

./build.sh

The built site will be in web/dist/.

Development

After running ./build.sh at least once:

cd web
npm run dev

This starts a dev server with hot reload at http://localhost:5173.

If you change the Rust code, rebuild with ./build.sh

Deployment

Serve the web/dist/ directory with any static file server. The site is fully static with no backend required.