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OpenSnitch vs Windows Firewall Control: catalog facts
OpenSnitchWindows Firewall Control
Free

Free and open source under the GPL.

Free

Free to download and use.

Linux Windows
  • Prompts on every new outbound connection, so unexpected traffic becomes visible
  • Blocks ad, tracker and malware domains system-wide
  • Prompts when unknown programs try to connect out
  • One-click switching between filtering modes
  • Linux only
  • The first days are a stream of prompts until your rules settle
  • Windows only
  • Medium filtering needs rules for every program you use
Downloadable app Downloadable app
Open source Closed source
License: GPL-3.0 License not stated
No account needed No account needed
Works offline Works offline

Checked September 21, 2026

Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.