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NetMon

A lightweight network bandwidth monitor that lives in the corner of your screen โ€” DU Meter style, but free, modern, and built for Windows 11.

C# / WinForms ยท .NET 8 ยท 13 โ˜… on GitHub ยท MIT licensed
NetMon widget โ€” small floating window showing daily total, live up/down speed graph, and current 44.7 kbps down / 28.1 kbps up

Why NetMon

๐Ÿชถ Tiny footprint

Single-window widget, draggable, always-on-top optional. Sub-megabyte RAM, near-zero CPU.

๐Ÿ“ˆ Real-time graph

Live up/down speed plot. Adjustable refresh rate. Reads directly from Windows performance counters.

๐Ÿ”Œ VPN-aware

v1.4 fixes speed reporting under VPN tunnels โ€” counts the actual interface, not the underlying NIC.

โš™๏ธ No bloat

No telemetry, no ads, no "pro" tier. Just a number and a graph.