Download Xtools 1.2 for Mac from our website for free. The actual developer of this software for Mac is Tenon Intersystems. The software is included in System Tools.
From the developer:
Xtools is an Aqua X Window Server for Mac OS X.
You may want to check out more Mac applications, such as SimpleError, Cookie Assassin or ARTIS Screen Guides, which might be similar to Xtools.