Gas Mask - Gas Mask is simple hosts file manager for Mac OS X.
SwitchHosts - Free and open source hosts management & switching app
simplewall - Simple tool to configure Windows Filtering Platform (WFP) which can configure network activity on...
BlueLife Hosts Editor - BlueLifeHosts editor is a Portable freeware application for editing windows Hosts file ,(easily add/delete , Block , Update domain names)
HostsXpert - HostsXpert is an ultra-groovy Hosts file Manager, Editor and Helper-outter.
Auto Hosts - Automate hosts file updates on Linux and MacOS.