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Security

LuLu

★★★★☆ ✓ Safe

Open-source firewall to block unknown outgoing connections

Official site

Dedicated URL：https://lulu.nailproczech.com

Official site：https://objective-see.org/products/lulu.html

2.8K downloads

8.4K views

macOS Platform

2026-10-30 Updated

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1,721 reviews

Download links

No download link has been collected yet — get the official installer from the vendor site.

Description

Open-source firewall to block unknown outgoing connections