Little Snitch

Objective Development · Nightly Homebrew cask for Little Snitch, a host-based application firewall for macOS.

CaskSecurity & PrivacyAuto-updatesApple silicon · Intel

From homebrew/cask

30-day installs1#2250 in App

1-year installs64Last 365 days

Latest version6.5Sep 8 · Sep 8

Download size—arm64 / x86_64 · dmg

Release cadenceIrregular0 releases in 30 days

6.5
LatestSep 8 · Tue
OpenNavo editorialAdded to Homebrew Jun 16 17:35
Adds macOS 27 Golden Gate compatibility and app-bundle integrity monitoring, with several interface, networking, and bug-fix updates. Upgrade to 6.5 before upgrading to macOS 27.
Important
Upgrade to 6.5 before upgrading to macOS 27 Golden Gate.
Changes
Adds compatibility with macOS 27 Golden Gate.Monitors app-bundle integrity while running and warns of unexpected changes.Clicking the selected map location clears the location filter.Adds experimental NAT64 implementation; updates encrypted DNS behavior.
Fixes
Expired temporary rules now appear under Suggestions > Expired.Fixes a rare crash when searching rules with an empty exact-match query.
6.3
Sep 9, 2025 · Tue
OpenNavo editorialAdded to Homebrew Aug 13, 2025 16:18
Adds macOS 26 Tahoe and Safari web app policy support, expands rule and connection controls, and fixes blocklist parsing, Network Monitor, and configuration issues.
Features
Supports macOS 26 Tahoe and Safari web app policies.Adds rule quick filters and Network Monitor focus controls.Improves process attribution and blocklist comment handling.
Fixes
Corrects parsing of small IPv6 blocks, including /128.Fixes Network Monitor and configuration issues.Fixes a crash when rule usage counts exceeded 4 billion.