NetLimiter - NetLimiter is an ultimate Internet traffic control and monitoring tool designed for Windows.
Little Snitch - Little Snitch is a firewall application that monitors and controls outbound internet traffic.
NetBalancer - NetBalancer is a Windows application for local network traffic control and monitoring.
LuLu by Objective-See - LuLu is the free open-source macOS firewall that aims to block unauthorized (outgoing) network...
Bandwidth Manager - Bandwidth management, bandwidth limiting and traffic shaping software for Windows
Radio Silence - Radio Silence is a network monitor and firewall for the macOS. The software stops apps from making network connections. The firewall runs in the background and does not require an open window.