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Utilities & Security
One-click outbound firewall for Mac privacy
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LuLu
Free open-source firewall for macOS by Objective-See
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About LuLu
LuLu is a free, open-source macOS firewall that blocks unauthorized outgoing network connections. Key features include allow and block rules per app, temporary rules, Apple process whitelisting, and no cost for personal or commercial use. It is available free of charge from its official site, where the developers provide downloads, documentation, and updates for anyone who wants to install and use it.
LuLu key facts
- Category: Utilities & Security
- Pricing: Free — listed in this directory as a free tool, with no paid plan required to use it.
- Focus areas: firewall, macos, open source, privacy
- Official site: objective-see.org
About the Utilities & Security category
Password managers, cloud storage, and VPNs for everyday digital security. The Utilities & Security category on Tools Hub currently lists 667 tools. Alongside LuLu, it includes Radio Silence, Tripmode, Safing Portmaster, NetLimiter.
More in Utilities & Security
Comparing tools in the Utilities & Security category? These related listings are worth a look: Radio Silence — One-click outbound firewall for Mac privacy; Tripmode — Save mobile data by blocking background traffic on Mac; Safing Portmaster — App firewall and privacy monitor for your whole computer.
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Utilities & Security
Save mobile data by blocking background traffic on Mac
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Utilities & Security
App firewall and privacy monitor for your whole computer
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Utilities & Security
Internet traffic control and monitoring for Windows
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Utilities & Security
Wi-Fi site survey and analysis for Mac and Windows
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Utilities & Security
Self-hosted speed test with no Flash or Java