
LuLu by Objective-See
LuLu is the free, shared-source macOS firewall that aims to block unknown outgoing connections unless explicitly approved by the user.
What is LuLu by Objective-See?
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 components or 3rd-party applications from transmitting information to remote servers.
What's to like about LuLu? Lots!
100% free As in no ads, no time trials, no missing features. Because why not!? And no, it doesn't track, monitor, or spy on you - as that'd just be pure evil!
Shared source The full source code for LuLu is available on GitHub. Such transparency allows anybody to audit its code, or understand exactly what is going on.
Protects LuLu aims to alert you whenever an unauthorized network connection is attempted. As such, it can generically detect malware, or be used to block legitimate applications that may be transmitting private data to remote servers.
Simple "Do one thing, do it well!" LuLu is designed as simply as possible. Sure this means complex features may not be available, but it also means it's easier to use and has a smaller attack surface!
Enterprise-friendly Want to know what network events are being detected? Or rules your users have added? LuLu provides simple mechanisms to subscribe to such events, and stores data such as rules in an open, easily digestible manner.
LuLu by Objective-See Screenshots





LuLu by Objective-See Features
LuLu by Objective-See information
Supported Languages
- English
GitHub repository
- 7,622 Stars
- 391 Forks
- 351 Open Issues
- Updated
Comments and Reviews
Said about LuLu by Objective-See as an alternative
It's very simple and free!
I Wanted a tool to replace Little Snitch, and this one is GREAT. It is Free, Open Source, and very lite weight.
Free (Libre) Software is and will be always best for the humanity :)
Tags
- Network Monitor
Lists containing LuLu by Objective-See
The macOS setup for everyone (with free software only) • Best of MAC SoftwareRecent user activities on LuLu by Objective-See
POX added LuLu by Objective-See as alternative(s) to Little Snitch Mini
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hercut liked LuLu by Objective-See
Very nice open source macOS application firewall. I am a fan.