NetBalancer - NetBalancer is a Windows application for local network traffic control and monitoring.
GlassWire - Visualize network activity in detail, get notified when new apps access the network, look out for...
FreeMeter - Monitor network bandwidth (C#.NET 2k/XP+). Desktop and Systray graph.
DU Meter - DU Meter is a network bandwidth monitor for your computer.
NetLimiter - NetLimiter is an ultimate Internet traffic control and monitoring tool designed for Windows.
NetTraffic - Essential network bandwidth monitor.