Radio Silence 3.2 macOS

The easiest network monitor and firewall for Mac. See all network connections — block any app from going online. Powerful privacy for your Mac, usable by anyone: Radio Silence lets you keep a list of apps that aren't allowed to make network connections.

Protect your privacy
Prevent apps from phoning home
Save on bandwidth and data charges


Radio Silence is completely invisible
The firewall is invisible and always active. You don't have to keep any windows open.

No annoying pop-ups
No clutter on your screen or dock
No effect on your Mac's performance


Did you know that when Adobe Photoshop launches, up to 7 different processes connect online?

See exactly what's going on
Radio Silence’s network monitor shows you every network connection in real time. If you find a misbehaving app, you can block it with a single click.

Radio Silence exposes everything
Find the hidden helpers and background processes apps use to make connections:

Helper apps and executables
In-memory processes
Daemons, XPC services, and more


Radio Silence takes care of all the tricky network details for you
Radio Silence is built on years of real-world experience and customer feedback. Instead of making you twiddle with settings, it simply does the right thing.

Child processes of blocked apps are automatically blocked too
Blocked apps can’t access the network, but can still talk to local processes
…and many more things you thankfully never have to think about

Requires OS X 10.10 or later

Home Page - http://radiosilenceapp.com/