New releaseAug 3, 2026
LuLu v4.5.0
Open-source macOS firewall that monitors and controls network connections, blocking unauthorized outbound and inbound traffic with per-application rules.
LuLu
LuLu is the free open-source macOS firewall:
Documentation:
Full details and usage instructions can be found here.
To Support:
❤ Love this product and want to support it? Please check out my patreon page.
