LuLu is the free, shared-source macOS firewall that aims to block unknown outgoing connections unless explicitly approved by the user.




Comments about LuLu by Objective-See as an Alternative to Little Snitch
Free (Libre) Software is and will be always best for the humanity :)
I've used Little Snitch for many years. However, after buying a new Mac I was faced with buying licences for a whole bunch of apps I had paid for several times in the past. Given this unwanted additional expense and the fact that I really don't need all the extra features of the later versions of Little Snitch, I decided to try alternatives. LuLu absolutely fits the bill for the purpose of stopping apps phoning home without your permission.


- LuLu by Objective-See is Free and Open Source































































I Wanted a tool to replace Little Snitch, and this one is GREAT. It is Free, Open Source, and very lite weight.