Little Snitch shows every network connection your Mac apps make in real time and lets you allow or deny them per-app and per-domain, giving you visibility and control no DNS blocker can match.
Each app below addresses a specific gap in Little Snitch's offering. We picked them based on real user review patterns and feature differentiation.
Lulu is a free, open-source macOS outbound firewall developed by Objective-See's Patrick Wardle. It blocks unauthorized outbound connections and provides alerts when new processes try to connect to the internet, similar to Little Snitch at no cost.
Explore Lulu data →Radio Silence is a minimalist macOS application firewall that blocks specific apps from accessing the internet. Simpler interface than Little Snitch with less granularity — you block by app, not by per-app domain rule.
Explore Radio Silence data →Murus is a graphical front-end for macOS's built-in PF packet filter. It supports inbound and outbound firewall rules, bandwidth throttling, and geo-blocking. More powerful than Little Snitch for blocking IP ranges but less granular for app-level control.
Explore Murus Firewall data →GlassWire provides real-time network monitoring, per-app bandwidth usage, and firewall control for Windows and Android. Similar in concept to Little Snitch but for Windows. Offers a free tier and paid plans for advanced features.
Explore GlassWire data →Pi-hole blocks ads and trackers at the DNS level for every device on your network. It does not provide per-app visibility or block first-party domains, but protects all devices including those that cannot run software like Little Snitch.
Explore Pi-hole data →NextDNS filters DNS queries in the cloud with per-device profiles and detailed logs. It protects all your devices by changing DNS settings and requires no local hardware. Complements rather than replaces Little Snitch's per-app visibility.
Explore NextDNS data →Little Snitch is developed by Objective Development, an Austrian company. It has been available for macOS since 2002 and is a staple tool for security researchers and privacy-conscious Mac users.
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