Web-based RDP client built with Go WebAssembly and grdp

A web-based client that connects to Windows Remote Desktop (RDP) using only a browser has been released. The implementation combines Go WebAssembly and grdp, separating the browser-side execution part from the server-side proxy.

The operation path is structured as Browser (WASM) -> WebSocket -> proxy -> TCP -> RDP Server. The browser displays the remote screen on a canvas and forwards keyboard and mouse input.

Supported features are as follows.

• Keyboard input based on RDP scan codes
• Mouse input including movement, clicks, and wheel
• RDPSND audio reception and playback via Web Audio API

Users connect at http://localhost:8080 by entering Host, Port, Domain, User, Password, Width, and Height. The default port is 3389, and local accounts can leave Domain empty.

The build outputs are split into static/main.wasm and static/wasm_exec.js for the browser, and the proxy server proxy/proxy. It can be run via make serve or ./proxy/proxy -listen :8080 -static static.

For security, the proxy allows connections from all origins, so it should only be used on trusted networks, or HTTPS/WSS and an authentication layer should be added before exposing it externally. Requirements are Go 1.24 or higher and an accessible RDP server.