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Portmaster vs TinyWall: catalog facts
Portmaster	TinyWall
Freemium Free and open source under the GPL 3.0. Network history search, per-app bandwidth and the…	Free Completely free with no ads or paid upgrades; donations accepted.
Windows, Linux	Windows
Blocks known trackers and malware with no configuration Live list of every connection, attributed to the program that made it	No pop-up prompts Installs no drivers or kernel components
Windows and Linux only Network history search and bandwidth figures are paid features	Windows only Programs must be allowed manually since it does not ask
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
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 23, 2026

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