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GlassWiresimplewall
Freemium

A free version is available. Longer history and extra features require a paid licence.

 Free

Free and open source under the GPL 3.0.

Windows, Android Windows
  • Visual history makes it obvious which application started talking and when
  • Alerts on first connections and on changes to system network settings
  • A plain allow and block list rather than a stream of pop-ups
  • Internal block list aimed at Windows telemetry
  • Longer history retention and several features need a paid licence
  • Windows and Android only, closed source
  • The project itself says it is for advanced users
  • Not a Windows Firewall interface; it uses a separate rule system
Downloadable app Downloadable app
Closed source Open source
License not stated License: GPL-3.0
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked September 22, 2026

Checked September 21, 2026

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