Top Alternatives to Little Snitch

GlassWire is a powerful network security monitoring tool and firewall that visualizes your network activity. It helps you see what applications are using your internet connection and alerts you to potential threats.

NetLimiter is a powerful Windows application designed for client-side network traffic control and monitoring. It provides users with comprehensive tools to manage bandwidth allocation, set data transfer quotas, and monitor network activity on an application-specific basis.

ZoneAlarm Free Firewall provides essential network protection for home users. It offers a robust two-way firewall to monitor and control incoming and outgoing network traffic, safeguarding your system against unauthorized access and malicious intrusions.

Windows 10 Firewall Control provides a robust and intuitive interface for meticulously managing network access by applications on your Windows 10 system. It goes beyond the built-in Windows Firewall, offering fine-grained control and real-time monitoring for enhanced security and privacy.

Windows Firewall Control is a powerful and easy-to-use front-end for the native Windows Firewall. It offers intuitive control over network connections, allowing users to create, modify, and delete firewall rules with greater flexibility than the built-in Windows interface. It provides quick switching between filtered modes, network monitoring, and enhanced security features.

AFWall+ is a robust, open-source, iptables-based firewall for Android requiring root access. It provides granular control over network access for individual applications, allowing users to restrict data usage over Wi-Fi or mobile networks and enhance device security and privacy.

Radio Silence is a macOS firewall designed to easily monitor and block unwanted network connections from applications, enhancing your privacy and security by preventing apps from sending data out without your consent.

Hands Off! is a powerful macOS-based application that provides comprehensive control over your computer's network connections and disk access, protecting your privacy and security by preventing applications from sending out data or accessing files without your consent.