Receive notifications whenever a new program connects to the network, or when it's modified


Little Snitch Mini is described as 'As soon as you’re connected to the Internet, your apps can send whatever they want to wherever they want, unnoticed by you, because all of this happens invisibly under the hood' and is a Firewall in the network & admin category. There are more than 25 alternatives to Little Snitch Mini for a variety of platforms, including Windows, Mac, Android, Linux and Android Tablet apps. The best Little Snitch Mini alternative is Portmaster, which is both free and Open Source. Other great apps like Little Snitch Mini are RethinkDNS, GlassWire, NetGuard and NetLimiter.
Receive notifications whenever a new program connects to the network, or when it's modified


The upribox Software turns your RaspberryPi into a privacy-enhancing Wireless router with adblocking, Tor, and a VPN server.



Outbound firewall for apps, blocking apps from accessing internet. Useful for reducing data usage when tethering to mobile data, or on a slower wifi connection.




Simple to use bandwidth monitoring software to track Internet bandwidth usage.It remains in tray and displays the bandwidth usage in current session, day and month. This will be helpful for those with limited bandwidth broadband/adsl connection.


Filseclab Personal Firewall Professional Edition is one of the most important software of Filseclab, it is very easy to use and also very powerful. It can provide more secure protection for your PC, and it is FREE.


Ever wondered if an application records audio through your Mac’s built-in microphone without your knowledge? Or if the camera captures video for no good reason?
With Micro Snitch there’s no doubt anymore.




Wallix Pro Firewall prevents intruders from accessing your computer and that’s the main objective for a computer firewall. It automatically detects and blocks attacks through a comprehensive examination of all inbound and outbound information to your computer.


Armor2net personal firewall software stops hackers, data thieves, and protects your PC from Internet-borne threats. Armor2net firewall can meet your requirements for Internet security and Internet privacy.

As Apple's built-in Firewall preferences improves in both functionality and security, I will be aiming Flying Buttress more at users who need the advanced firewall configuration, logging, and IP sharing options found in Flying Buttress.