Compare software

simplewall vs Fort Firewall: catalog facts
simplewall	Fort Firewall
Free Free and open source under the GPL 3.0.	Free Free and open source.
Windows	Windows
A plain allow and block list rather than a stream of pop-ups Internal block list aimed at Windows telemetry	Per-application and global network rules Wildcards and parent-process based rules
The project itself says it is for advanced users Not a Windows Firewall interface; it uses a separate rule system	Windows only Requires familiarity with firewall rules
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 24, 2026

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