TinyWall - Lightweight and non-intrusive firewall
Gas Mask - Gas Mask is simple hosts file manager for Mac OS X.
simplewall - Simple tool to configure Windows Filtering Platform (WFP) which can configure network activity on...
SwitchHosts - Free and open source hosts management & switching app
Windows 10 Firewall Control - Windows 10 Firewall Control: simple and exhaustive solution for applications network activity controlling and monitoring.
BlueLife Hosts Editor - BlueLifeHosts editor is a Portable freeware application for editing windows Hosts file ,(easily add/delete , Block , Update domain names)