Little Snitch 5 Released for macOS Big Sur With New Design, Improved Network Traffic Monitoring, and More

Austrian developer Objective Development today announced the release of Little Snitch 5, a major new version of its popular network monitoring utility on the Mac. Whenever an app attempts to connect to a server on the internet, Little Snitch shows a connection alert, allowing you to decide whether to allow or deny the connection.

little snitch 5
The headline new feature of Little Snitch 5 is integration of new network filter technologies introduced in macOS Big Sur. Objective Development says the app's underlying engine was rebuilt to replace the previous kernel extension-based approach, which is no longer supported by macOS. The app has also been redesigned for macOS Big Sur.

Little Snitch 5 now captures connection information in the background. The app no longer requires the Network Monitor application to be running in order to collect this information, resulting in reduced memory and CPU consumption. The new monitoring system is now capable of holding traffic information from up to one year ago, versus one hour previously.

System administrators now have the ability to configure settings via a command line interface, making Little Snitch scriptable for the first time. This interface provides both historical and real-time log data of all network connections.

The app has also moved to drag-and-drop installation, meaning that restarting is no longer necessary for installation or updates.

Little Snitch 5 is available now on Objective Development's website for $45 per individual license. Existing customers who purchased Little Snitch 4 after November 1, 2019 can upgrade to Little Snitch 5 for free. Customers who purchased Little Snitch 4 prior to November 1, 2019 are able to purchase Little Snitch 5 for a reduced price of $25.

Little Snitch 5 requires macOS Big Sur. Users still running macOS Catalina or older can still purchase and run Little Snitch 4, which includes a free update to Little Snitch 5, giving users the freedom to choose when to upgrade.

Related Forum: macOS Big Sur

Top Rated Comments

sashavegas Avatar
27 months ago
Little Snitch can't control Apple's apps - so much for the privacy mantra.
https://tidbits.com/2020/10/22/apple-hides-traffic-of-some-its-own-apps-in-big-sur/
https://mjtsai.com/blog/2020/10/22/apple-apps-exempt-from-network-filters-and-vpns/

[MEDIA=twitter]1318465421796782082[/MEDIA]
Score: 10 Votes (Like | Disagree)
Serban55 Avatar
27 months ago
Its nice to see that dev already releasing final ver for the upcoming Big Sur...thats why arm apps will be on the horizon soon
Score: 6 Votes (Like | Disagree)
madmin Avatar
27 months ago
I ❤️ LittleSnitch

By releasing this early they have you covered the moment you upgrade to Big Sur.
Score: 5 Votes (Like | Disagree)
Spindel Avatar
27 months ago

Try this exercise: Install Little Snitch. After you have finished allowing or disallowing all of the connections it will find install, or try to install, Spotify. You will be shocked and amazed at all of the connections your computer is making behind your back. I never joined Spotify thanks to Little Snitch. I think it was up to a dozen or more connections that just the installer, or first run of the app, wanted to make before I said enough is enough. It was nuts...just to play music?
Thats because spotify use a torrent like protocol so when you connect to spotify you become a node that helps the network.

Worrying about spotifys connections is a non issue.

*disclaimer* I do not use spotify (or any other music streaming service), but it’s not because of all of its connections but for other reasons.


on topic:
I don’t see the point of this software, but I run diversion on my router and have my own VPN server set up through my home network so I get the blocking and tracking of connections from all my devices.
Score: 4 Votes (Like | Disagree)
Charles50 Avatar
27 months ago
Yay, I got the $25 upgrade price, since I only bought it a few months ago.

NOTE: Watch for discounts offered through the developer's twitter account. Occasionally they run offers of 50% off.
Score: 4 Votes (Like | Disagree)
NMBob Avatar
27 months ago

I don't understand - what is the use case of this program?

Is it for catching if you have malware installed on your Mac that's making a lot of unexpected outbound connections? Or would the expectation be that you're using your Mac as a public server, and you want to monitor for malicious inbound connections? Both? Something else?

Network security isn't something that I've done much in.
Try this exercise: Install Little Snitch. After you have finished allowing or disallowing all of the connections it will find install, or try to install, Spotify. You will be shocked and amazed at all of the connections your computer is making behind your back. I never joined Spotify thanks to Little Snitch. I think it was up to a dozen or more connections that just the installer, or first run of the app, wanted to make before I said enough is enough. It was nuts...just to play music?
Score: 3 Votes (Like | Disagree)

Related Stories

macOS Big Sur Feature Purple

Apple Issues 'Device Support Update' for macOS Big Sur

Thursday September 30, 2021 6:30 am PDT by
Apple today released a standalone "Device Support Update" for macOS Big Sur. The minor update ensures proper updating and restoring for iOS and iPadOS devices with a Mac, according to Apple, but no further details were provided. It's likely that the update improves Finder support for newly released devices, including iPhone 13 models, the new iPad mini, and the ninth-generation iPad. The...
macOS Big Sur Feature Blue

Apple Seeds Release Candidate Version of macOS Big Sur 11.5 to Developers

Tuesday July 13, 2021 10:19 am PDT by
Apple today seeded the release candidate version of an upcoming macOS Big Sur 11.5 update to developers for testing purposes, with the new beta coming one week after the release of the fifth macOS Big Sur 11.5 beta. Developers can download the ‌‌‌‌macOS Big Sur‌‌‌‌ 11.5 beta using the Software Update mechanism in System Preferences after installing the proper profile from the ...
macOS Big Sur Feature Triad

Apple Releases macOS Big Sur 11.5.1 With Security Updates

Monday July 26, 2021 10:20 am PDT by
Apple today released macOS Big Sur 11.5.1, a minor bug fix update that comes close to one week after the launch of macOS Big Sur 11.5. The new ‌‌‌‌‌‌macOS Big Sur‌‌‌‌‌ 11.5.1 update can be downloaded for free on all eligible Macs using the Software Update section of System Preferences. According to Apple, macOS Big Sur 11.5.1 brings important security updates and is...
macOS Big Sur Feature Purple

Apple Seeds Second Beta of macOS Big Sur 11.4 to Developers [Update: Public Beta Available]

Tuesday May 4, 2021 10:19 am PDT by
Apple today seeded the second beta of an upcoming macOS Big Sur 11.4 update to developers for testing purposes, with the new beta coming two weeks after the release of the first macOS Big Sur 11.4 beta. Developers can download the ‌‌‌macOS Big Sur‌‌‌ 11.4 beta using the Software Update mechanism in System Preferences after installing the proper profile from the Apple Developer...
macOS Big Sur Feature Triad

Apple Releases macOS Big Sur 11.6 With Security Fixes

Monday September 13, 2021 10:20 am PDT by
Apple today released macOS Big Sur 11.6, the sixth major update to the macOS Big Sur operating system that first launched in November 2020. macOS Big Sur 11.6 comes a month after the release of macOS Big Sur 11.5.2, a bug fix update. The new ‌‌‌‌‌‌macOS Big Sur‌‌‌‌‌ 11.6 update can be downloaded all eligible Macs using the Software Update section of System Preferences. ...
macOS Big Sur Feature Purple

Apple Seeds macOS Big Sur 11.4 Release Candidate to Developers

Monday May 17, 2021 10:17 am PDT by
Apple today seeded the release candidate version of an upcoming macOS Big Sur 11.4 update to developers for testing purposes, with the new beta coming two weeks after the release of the third macOS Big Sur 11.4 beta. Developers can download the ‌‌‌macOS Big Sur‌‌‌ 11.4 beta using the Software Update mechanism in System Preferences after installing the proper profile from the...
macOS Big Sur Feature Triad

Apple Seeds Third Beta of macOS Big Sur 11.4 to Developers

Monday May 10, 2021 10:14 am PDT by
Apple today seeded the third beta of an upcoming macOS Big Sur 11.4 update to developers for testing purposes, with the new beta coming two weeks after the release of the second macOS Big Sur 11.4 beta. Developers can download the ‌‌‌macOS Big Sur‌‌‌ 11.4 beta using the Software Update mechanism in System Preferences after installing the proper profile from the Apple Developer...
macOS Big Sur Feature Blue

Apple Seeds Fourth Beta of macOS Big Sur 11.5 to Developers

Tuesday June 29, 2021 10:14 am PDT by
Apple today seeded the fourth beta of an upcoming macOS Big Sur 11.5 update to developers for testing purposes, with the new beta coming two weeks after the release of the third macOS Big Sur 11.5 beta. Developers can download the ‌‌‌‌macOS Big Sur‌‌‌‌ 11.5 beta using the Software Update mechanism in System Preferences after installing the proper profile from the Apple...

Popular Stories

iPhone Measure Height

Newer iPhones Allow You to Measure Someone's Height Instantly — Here's How

Saturday December 3, 2022 10:23 am PST by
iPhone 12 Pro and Pro Max, iPhone 13 Pro and Pro Max, and iPhone 14 Pro and Pro Max models feature a LiDAR Scanner next to the rear camera that can be used to measure a person's height instantly in Apple's preinstalled Measure app. To measure a person's height, simply open the Measure app, point your iPhone at the person you want to measure, and make sure they are visible on the screen from...
iOS 16

When Will iOS 16.2 Be Released?

Friday December 2, 2022 2:13 pm PST by
Apple in late October began testing iOS 16.2 and iPadOS 16.2 updates, providing betas to both developers and public beta testers. As of now, we've had four total betas, with the fourth beta having been released earlier this week. iOS 16.2 and iPadOS 16.2 are expected before the end of the year, and we thought we'd try to narrow down the launch timeline. With only four betas released since...
14 vs 16 inch mbp m2 pro and max feature 1

Major RAM Upgrade Coming to Next-Generation MacBook Pro

Friday December 2, 2022 2:03 am PST by
The next-generation MacBook Pro models could feature faster RAM, according to a recent report from a reliable source. MacRumors Forums member "Amethyst," who accurately revealed details about the Mac Studio and Studio Display before those products were announced, recently provided information about Apple's upcoming 14- and 16-inch MacBook Pro models. The new machines are expected to feature...
General iOS 16 Feature Yellow

iOS 16.2 for iPhone Launching This Month With These 8 New Features

Thursday December 1, 2022 8:44 am PST by
Apple plans to publicly release iOS 16.2 for the iPhone in mid-December, according to Bloomberg's Mark Gurman. The update remains in beta testing for now, with at least eight new features and changes already uncovered so far. iOS 16.2 introduces a number of new features, including Apple's new whiteboard app Freeform, two new Lock Screen widgets for Sleep and Medications, the ability to hide...
apple ar headset concept 1

Kuo: Apple Headset Shipments Potentially Delayed Until Second Half of 2023

Sunday December 4, 2022 7:38 am PST by
Mass shipments of Apple's long-rumored AR/VR headset may be delayed until the second half of 2023 due to unspecified "software-related issues," according to the latest information shared today by tech analyst Ming-Chi Kuo. Apple headset render by Ian Zelbo Kuo said mass shipments of components for the headset are still likely to begin in the first half of 2023, but he believes that mass...
Emergency SOS via Satellite iPhone YT

Apple's iPhone 14 Emergency SOS via Satellite Feature Saves Stranded Man in Alaska

Thursday December 1, 2022 4:37 pm PST by
With the launch of iOS 16.1, Apple rolled out a Emergency SOS via Satellite, which is designed to allow iPhone 14 owners to contact emergency services using satellite connectivity when no cellular or WiFi connection is available. The feature was put to the test in Alaska today, when a man became stranded in a rural area. In the early hours of the morning on December 1, Alaska State Troopers ...
iPhone 14 Pro Purple Side Perspective Feature Purple

iPhone 15 Pro Rumored to Have These 5 Exclusive Features

Saturday December 3, 2022 10:55 am PST by
While we're still around nine months away from Apple unveiling the iPhone 15 lineup, rumors already suggest that the higher-end Pro models will have even more exclusive features than usual compared to the standard models next year. There are currently at least five features rumored to be exclusive to iPhone 15 Pro models:A17 chip: iPhone 15 Pro models will be equipped with an A17 Bionic...
top stories 3dec2022

Top Stories: M2 Max Benchmark Leak, iPhone 15 Camera Rumor, and More

Saturday December 3, 2022 6:00 am PST by
With Black Friday and Cyber Week shopping events winding down and the calendar flipping over to December, our attention is starting to turn to 2023 and all of the Apple news we're expecting to see. This week saw an alleged benchmark leak for an "M2 Max" chip expected to make an appearance in upcoming Macs like the MacBook Pro early next year, as well as fresh rumors about the iPhone 15...
android apple fix rcs

Google Again Criticizes Apple for Not Adopting RCS for Messages App: 'Their Texting is Stuck in the 1990s'

Friday December 2, 2022 10:54 am PST by
Google is continuing on with its attempt to convince Apple to adopt the RCS messaging standard, publishing a new "it's time for RCS" blog post. Promoted heavily by Google, RCS or Rich Communication Services is a messaging standard that is designed to replace the current SMS messaging standard. It provides support for higher resolution photos and videos, audio messages, and bigger file sizes, ...
maxresdefault

Can't Get an iPhone 14 Pro? Here's Why You Should Wait for the iPhone 15 Ultra

Monday December 5, 2022 11:44 am PST by
Due to production issues at Apple supplier factories in China, the iPhone 14 Pro and iPhone 14 Pro Max are backordered and basically out of stock at every store. If you were planning to gift or receive an iPhone 14 Pro model for the holidays and didn't already get one, you're basically out of luck because they're gone until late December. Subscribe to the MacRumors YouTube channel for more ...