JS Commander is a free and open source HTTP proxy server with a JavaScript console that lets you evaluate JavaScript code in any browser that supports XmlHttpRequest, including Nintendo Wii, iPhone and iPod Touch.

JS Commander (jscmd for short) is an HTTP proxy server with a JavaScript console. It lets you evaluate JavaScript code in most browsers that support XmlHttpRequest. It is tested with Firefox 2, IE 6/7, Safari 2.0.4 and Opera 9 (including Wii).

The JavaScript console and the web browser can be run on different machines, so it's especially useful if you want to debug/run JavaScript code in embedded browsers with poor keyboard support and small screens such as iPhone, iPod Touch and Wii.

NOTE: JS Commander is licensed and distributed under the terms of the Ruby License.