Surge for Mac - Advanced Web Debugging Proxy for Mac & iOS
TrafficMonitor - TrafficMonitor is a network monitoring suspension window software in Windows.
Weer - A HTTP protocol debugger with Chrome DevTools frontend interface
NetBalancer - NetBalancer is a Windows application for local network traffic control and monitoring.
James - James is a HTTP Proxy and Monitor that enables developers to view and intercept requests made from...
FreeMeter - Monitor network bandwidth (C#.NET 2k/XP+). Desktop and Systray graph.