Little Snitch is described as 'Firewall tool for monitoring, controlling, and alerting on outgoing network connections, with real-time user notifications and customizable rule-based access control' and is a very popular Firewall in the network & admin category. There are more than 25 alternatives to Little Snitch for a variety of platforms, including Windows, Mac, Android, Linux and iPhone apps. The best Little Snitch alternative is Wireshark, which is both free and Open Source. Other great apps like Little Snitch are Portmaster, LuLu by Objective-See, GlassWire and Fort Firewall.
Wireshark is a premier network protocol analyzer used globally in industries and education, offering multi-platform support, deep protocol inspection, powerful display filters, and VoIP analysis. It allows both live capture and offline analysis, supporting various networks and protocols.
Free, open-source privacy suite monitoring all network activity, blocking unwanted connections, using trusted filter lists for ads and malware, enforcing DNS-over-TLS, providing custom app and global rules, and supporting advanced privacy management.
LuLu is the free, shared-source macOS firewall that aims to block unknown outgoing connections unless explicitly approved by the user.
Visualizes real-time and historical network activity, delivers alerts for suspicious behavior and unknown connections, manages firewall rules, reports DNS and system changes, identifies remote hosts, monitors app usage, supports remote monitoring, and detects possible threats.
NetGuard provides simple and advanced ways to block access to the internet - no root required.
Comprehensive Windows software for internet traffic control, enabling users to set bandwidth limits for applications or connections. Offers real-time monitoring, long-term stats per app, and detailed internet usage reports. Ideal for managing data efficiently and enhancing network performance.
A powerful tool which extends the functionality of Windows Firewall and provides new extra features which makes Windows Firewall better.
InviZible Pro uses DNSCrypt Protocol, Tor and i2pd (I2P Daemon) (PurpleI2P) to achieve maximum security, privacy and comfortable use of the Internet.
It lists activities, broadcast receivers, services, providers, permissions, signatures, shared libraries, etc. of any app
Radio Silence lets you block individual apps from accessing the internet. It never throws pop-ups on the screen, and is completely invisible.
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I Wanted a tool to replace Little Snitch, and this one is GREAT. It is Free, Open Source, and very lite weight.