Little Snitch

Little Snitch is a firewall application that monitors and controls outbound internet traffic.

Commercial

ZoneAlarm Free Firewall

ZoneAlarm Free Firewall blocks hackers from infiltrating your home PC by hiding your computer from unsolicited network traffic.

Freemium Windows

Radio Silence

Radio Silence lets you block individual apps from accessing the internet. It never throws pop-ups on the screen, and is completely invisible.

Commercial Mac OS X

Hands Off!

Hands Off! is an application to monitor and control the access of applications to your network and disks.

Commercial Mac OS X