PacketShield vs Little Snitch

A Little Snitch alternative for Windows and Linux

Little Snitch is the reference outbound firewall on macOS, but it does not run on Windows or Linux. PacketShield fills that gap with the same core idea: see which apps connect where, and block apps or domains you do not trust.

Try PacketShield free
FeaturePacketShieldLittle Snitch
PlatformsWindows 10/11 and LinuxmacOS only
Live connections per appYesYes
Block apps and domainsYesYes
Rule export/importYes (JSON)Yes
Pricing modelFree during public beta, no subscriptionOne-time license

Information about other products is general and may change; check each vendor for current details.

Choose Little Snitch if…

  • You are on a Mac — Little Snitch is the most mature option there.

Choose PacketShield if…

  • You want the Little Snitch workflow on Windows 10/11.
  • You want it on Linux with a graphical interface.

Frequently asked questions

Is there a Little Snitch for Windows?

Little Snitch itself is macOS-only. PacketShield is a Windows and Linux alternative with per-app and per-domain blocking and a live connection view.

Is there a Little Snitch for Linux?

Little Snitch does not run on Linux. Options include PacketShield and OpenSnitch, both with graphical interfaces.

Does PacketShield work on macOS?

Not today. PacketShield supports Windows 10/11 and Linux (x86_64).