Gas Mask is simple hosts file manager for Mac OS X. It allows editing of host files and switching between them.
Cost / License
- Free
- Open Source
Platforms
- Mac

VirtualHostX is described as '4.0 is the easiest way to host and share multiple websites on your Mac. It's the perfect solution for web designers working on more than one project at a time. With VirtualHostX you can easily create and manage Apache virtual hosts with just a few clicks' and is a Web Server in the online services category. There are four alternatives to VirtualHostX for Mac. The best VirtualHostX alternative is Gas Mask, which is both free and Open Source. Other great apps like VirtualHostX are Hosts.prefpane, Anvil and Knerve.
Gas Mask is simple hosts file manager for Mac OS X. It allows editing of host files and switching between them.

Hosts add a preference pane to your system preferences which lets you toggle your host file entries on and off, as well as add and remove them.


Anvil takes your site folder, gives it a .dev URL and makes it run for you. Works for any static HTML sites and Rack apps.

A tiny menubar app for OS X that gives you dot dev domains, PHP support and HTTPS and does it without doing a thing to your system.
