Gas Mask - Gas Mask is simple hosts file manager for Mac OS X.
HostsMan - HostsMan is a freeware hosts file manager and editor. Built-in hosts file updater
Anvil.works - Build seriously powerful web apps with all the flexibility of Python. No web development experience required.
HostsXpert - HostsXpert is an ultra-groovy Hosts file Manager, Editor and Helper-outter.
Hive - Seamless project management and collaboration for your team.
SwitchHosts - Free and open source hosts management & switching app