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ufw vs Portmaster: catalog facts
ufw	Portmaster
Free Free and open source under the GNU GPL v3.	Freemium Free and open source under the GPL 3.0. Network history search, per-app bandwidth and the…
Linux, Command line	Windows, Linux
Short commands for allowing and denying ports Application profiles for common services	Blocks known trackers and malware with no configuration Live list of every connection, attributed to the program that made it
Command-line only Less expressive than writing netfilter rules directly	Windows and Linux only Network history search and bandwidth figures are paid features
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-3.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 21, 2026

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