LuLu is the free open-source macOS firewall

Recommended by
2
GitHub stars
13k
Licence
GPL-3.0
Language
Objective-C
Last commit
1 Nov 2026

What people said

  • “> LittleSnitch is great for MacOS; it is easily configured to alert you every time your machine makes ip/domain connections, which can then be accepted, denied, or rules made For an open-source alternative, consider checking out - Lulu. It's not as feature rich nor has impres…”

  • “It's mostly what I use daily or a lot (except one these are not recurring; I will try to make these recurring once I am financially there again): - (For et al) - (I hop…”

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