HostsMan

HostsMan is a freeware hosts file manager and editor. Built-in hosts file updater Enable/Disable hosts file Built-in hosts editor Scan hosts for errors, duplicates and possible hijacks Hosts file backup manager Exclusion list

Free Windows

BlueLife Hosts Editor

BlueLife Hosts Editor is a portable freeware hosts-file editor and allows you to easily add/delete, block, and update domain names to your hosts file.

Free Windows

Gas Mask

Gas Mask is simple hosts file manager for Mac OS X. It allows editing of host files and switching between them.

Free Open Source Mac OS X

HostsXpert

HostsXpert is an ultra-groovy Hosts file Manager, Editor and Helper-outter. Below you'll find a list of HostsXpert's functions. Just a Simple word of caution -...

Free Windows

SwitchHosts!

SwitchHosts! is an App for hosts management & switching. It is a free and open source software.

Free Open Source Linux Mac

Hosts.prefpane

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.

Free Open Source Mac OS X

Hosts Switcher for Firefox

Hosts switcher allows you to change and reload your hosts file based on a simple template language.

Free Mac OS X Windows Linux Firefox