LuLu by Objective-See Alternatives

LuLu by Objective-See is described as 'LuLu is the free, shared-source firewall for macOS. Its goal is simple; block any unknown outgoing connections, until approved by the user. While it was designed to generically detect malware by flagging unauthorized networking connections, LuLu can also be used to block OS' and is a Firewall in the network & admin category. There are more than 10 alternatives to LuLu by Objective-See for a variety of platforms, including Mac, Android, Linux, Android Tablet and Windows. The best alternative is Portmaster, which is both free and Open Source. Other great apps like LuLu by Objective-See are GlassWire, Little Snitch, NetGuard and OpenSnitch.

LuLu by Objective-See alternatives are mainly Firewalls but may also be Network Monitors or Ad Blockers. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of LuLu by Objective-See.

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LuLu by Objective-See

Free • Open Source
Firewall
Mac

LuLu is the free, shared-source firewall for macOS. Its goal is simple; block any unknown outgoing connections, until...

Learn more about LuLu by Objective-See

Portmaster
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Free • Open Source
Firewall
Network Monitor
Ad Blocker
Windows
Linux
21 alternatives to Portmaster
Portmaster is a free and open-source application firewall that puts you back in charge over all your computer's network connections.
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Portmaster Features
1. Privacy focusedPortmaster is considered a privacy friendly alternative.
2. Dark ModePortmaster supports dark mode for comfortable usage in low light conditions.
3. Block TrackersPortmaster has a feature to block trackers from tracking you.
4. Ad-freePortmaster doesn't contain any form of external advertising.
5. No TrackingPortmaster will not track you or use your personal data.
6. No registration requiredYou can use most of the features in Portmaster without registration.
7. Website MonitoringPortmaster can detect and resolve website performance issues proactively.
8. No LogsPortmaster doesn't keep any logs of your activities.
Network Tools
Application Firewall
GlassWire
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Freemium • Proprietary
Network Monitor
Firewall
Windows
Android
Android Tablet
60 alternatives to GlassWire
GlassWire is a network security monitoring tool and analyzer that visualizes your network activity on an easy to use graph, alerts you of possible threats, manages your firewall, and more.
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GlassWire Features
Network activity
Intuitive Interface
Block apps
Built-in Firewall
Graphical component
Graphs
Traffic Monitoring
Push subscriptions
Network Tools
Little Snitch
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No
Paid • Proprietary
Firewall
Mac
35 alternatives to Little Snitch
A firewall protects your computer against unwanted guests from the Internet. But who protects your private data from being sent out? Little Snitch does!

Little Snitch has no features, suggest some!
NetGuard
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Freemium • Open Source
Firewall
Android
Android Tablet
F-Droid
26 alternatives to NetGuard
NetGuard provides simple and advanced ways to block access to the internet - no root required.
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NetGuard Features
1. Privacy focusedNetGuard is considered a privacy friendly alternative.
2. LightweightNetGuard consumes less device resources compared to similar apps.
No Root Required
Website blocking
OpenSnitch
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Free • Open Source
Firewall
Network Monitor
Linux
28 alternatives to OpenSnitch
OpenSnitch is a GNU/Linux port of the Little Snitch application firewall.
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OpenSnitch Features
Application Firewall
Network Filtering
FOSS
AFWall+
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No
Free • Open Source
Firewall
Anti-Virus App
Android
18 alternatives to AFWall+
Firewall (iptables frontend), based on DroidWall which is no longer being developed. A paid "donate"-version with more features it advertised within the app.
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AFWall+ Features
1. Root requiredRequires root to use AFWall+, mainly relevant for Android apps.
Multiple languages
Lockdown Privacy
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No
Freemium • Open Source
Firewall
Ad Blocker
Privacy Tool
Mac
iPhone
iPad
12 alternatives to Lockdown Privacy
Lockdown Privacy is an Open Source and free firewall for your iOS device. We built the product to help protect users from app developers and analytics companies that are monetizing user data without consent or transparency.
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Lockdown Privacy Features
1. Extensible by Plugins/ExtensionsLockdown Privacy can be extended with add-ons, plugins and extensions.
2. Block TrackersLockdown Privacy has a feature to block trackers from tracking you.
Anti-tracking
Radio Silence
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No
Paid • Proprietary
Firewall
Network Monitor
Mac
16 alternatives to Radio Silence
Radio Silence lets you block individual apps from accessing the internet. It never throws pop-ups on the screen, and is completely invisible.
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Radio Silence Features
1. Block TrackersRadio Silence has a feature to block trackers from tracking you.
Stronghold
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No
Free • Open Source
Mac
8 alternatives to Stronghold
Easily configure macOS security settings from the terminal.
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Stronghold Features
Security focused
Picosnitch
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No
Free • Open Source
Network Monitor
Privacy Tool
Linux
7 alternatives to Picosnitch
Receive notifications whenever a new program connects to the network, or when it's modified
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Picosnitch Features
Traffic Monitoring
Privacy