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firewalld vs ufw: catalog facts
firewalld	ufw
Free Free and open source.	Free Free and open source under the GNU GPL v3.
Linux, Command line	Linux, Command line
Zones set trust levels per connection or interface Changes apply without restarting the service	Short commands for allowing and denying ports Application profiles for common services
Linux only Zone concepts take some learning compared with plain rule lists	Command-line only Less expressive than writing netfilter rules directly
Downloadable app	Downloadable app
Open source	Open source
License not stated	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 23, 2026

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