Little Snitch
Little Snitch
4.5.2

4.1

HomeSecurityLittle Snitch
Little Snitch free download for Mac

Little Snitch

27 May 2020

Alerts you about outgoing network connections.

Overview

Little Snitch gives you control over your private outgoing data.

Track background activity
As soon as your computer connects to the Internet, applications often have permission to send any information wherever they need to. Little Snitch takes note of this activity and allows you to decide for yourself what happens with this data.

Control your network
Choose to allow or deny connections, or define a rule how to handle similar, future connection attempts. Little Snitch runs inconspicuously in the background and it can even detect network-related activity of viruses, trojans, and other malware.

What's new in Little Snitch

Version 4.5.2:
Fixes:
  • A privilege escalation issue (CVE-2020-13095). Details about this issue will be revealed later.
  • An issue in the connection alert causing the user’s host/domain choice to be ignored under some rare circumstances.
Little Snitch for Mac Old Versions

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How would you rate Little Snitch app?

663 Reviews of Little Snitch

See all
3
Blamanche
30 March 2020
Version: 4.4.3

Most helpful

I have used this app for a while. Then my computer was stolen. Then I found out that I would have to pay $50+ to install it on my new computer. Sorry but as much as I like the app, it's just not worth that much money. Plus, I must confess that it seems that the level of time investment necessary to make it work the way I would like is continuously increasing. There's no convenient way to tell what some of the callouts mean without much research and T&E. I have other things to do; I'm an engineer for christsake...LOL. If LS actually helped solve that problem and I do believe it can then it would be worth more to me but the current look up info is not very useful because it frequently finds nothing...
(4)
sherkoali870585
11 June 2020
Version: 4.5.2
Little Snitch 4.5.2 + Serial number
(0)
5
F451
28 May 2020
Version: 4.5.2
A top must-have. I've owned a license to Little Snitch for so long I cannot even remember when I first started using it (sometime around when it was first released). Through the years the support has always been excellent as well as the product.
(0)
5
piquadratpi2
26 May 2020
Version: 4.5.2
It's simply the best! Never have had big problems with it and it rescues me often in the past. A big thanks to the developers...
(0)
4
Derekcurrie
10 May 2020
Version: 4.5.1
Dated April 22, v4.5.1 may have already been updated on your Mac. - - I have to point out that the recent Little Snitch versions have become more difficult to use from the user's perspective. That dings it one star in my review. However, if we're using Little Snitch in the first place, we've already invited in an amount of user hostility for the sake of having fine grained control over what our computer software is doing out on the InterWebs. Despite the increase in complexity, I've realized that the recent updates/versions provide an even finer grain of control, once you get over the added learning curve. I appreciate that. Now, if only that control was made easier again for the user to access and use via fewer clicks and more obvious options. - - All in all, this is one of my Mac's greatest asset applications.
(1)
Aargl
09 April 2020
Version: 4.5
I give you a nice trick I use (with Little Snitch or other similar app): block http for Mail.app (or other mail client), it will avoid displaying many useless images! (and incidentally save some bandwidth) Usually, the long-standing images of many newsletters are served through http and not https (don't ask me why) , I've just noticed that, and it also applies to many spammers (when they don't use Base64 images). This doesn't apply to serious websites, so it might give you a hint of how a given website is considering privacy... You can also apply more advanced filters on mail clients — I must say that I've always allowed full connections to them and was amazed of the unwanted connections (tracking) they do when I started filtering them. I think we always consider filtering for apps and browsers, not mail clients as they don't have security extensions such as uBlock, uMatrix, etc. What do you think? :-)
(1)
Show comment (1)
1
Macguruguy
01 April 2020
Version: 4.5
Doesn't load system extension properly. Developer is not shown in Security & Privacy Pref Panel under Allow button. Had to disable SIP and re-enable to get extension to load. Until developer fixes this problem, I will continue to give 1 star review.
(0)
3
Blamanche
30 March 2020
Version: 4.4.3
I have used this app for a while. Then my computer was stolen. Then I found out that I would have to pay $50+ to install it on my new computer. Sorry but as much as I like the app, it's just not worth that much money. Plus, I must confess that it seems that the level of time investment necessary to make it work the way I would like is continuously increasing. There's no convenient way to tell what some of the callouts mean without much research and T&E. I have other things to do; I'm an engineer for christsake...LOL. If LS actually helped solve that problem and I do believe it can then it would be worth more to me but the current look up info is not very useful because it frequently finds nothing...
(4)
Show comment (1)
2
Macguruguy
24 March 2020
Version: 4.4.3
Current update to Mac OS 10.15.4 Catalina says that there is a legacy extension that will not work in future versions of Mac OS
(2)
5
rafabass05
18 January 2020
Version: 4.4.3
muy buena esta aplicacion, es la mejor para monitorear todo el trafico de red en las macbook pro...
(0)
5
ocean442
06 November 2019
Version: 4.4.3
The first app I install on any new Mac.
(1)
$49.35Buy Now

4.1

App requirements: 
  • Intel 64
  • OS X 10.11.0 or later
License: 
PaidOne-Time Purchase

Downloaded & Installed 999,607 times

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