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Aung Ko Ko
Aung Ko Ko

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Missed DU Meter So Hard I Built My Own — Free, Open-Source

NetMon

Lightweight Network Bandwidth Monitor for Windows — inspired by DU Meter.

NetMon is a minimalist, high-performance network monitoring widget designed for Windows. Inspired by the classic DU Meter, it provides real-time insights into your upload and download speeds through a sleek, unobtrusive interface. Built with C# and WinForms on .NET 8, NetMon is optimized for users who need precise data tracking without the resource overhead of traditional monitoring suites.


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Features

  • Live speed graph — scrolling dual-channel area chart (green = download, red = upload)
  • Badge arrows — DU Meter-style coloured badges with ↓↑ indicators and live bps readout
  • Compact / pill mode — collapse to a tiny speed-only strip when screen space matters
  • Usage stats — double-click to expand a Today / Month breakdown panel
  • Monthly data cap — set a GB limit and watch a colour-coded progress bar (green → amber → red)
  • Start with Windows — optional HKCU Run key, toggleable from the tray menu
  • Transparency — slide window opacity from 20 % to 100 %
  • Background colour — pick any colour; border and separators adapt automatically
  • System tray — right-click for the full menu; double-click to show/hide the widget
  • Window memory — position and size are restored exactly where you left them

Installation

  1. Download Latest Release from the Releases page
  2. Run it — no administrator rights required (installs to %LocalAppData%\Programs\NetMon)
  3. Optional: tick Start NetMon automatically when Windows starts during setup

The installer is built with Inno Setup 6 and targets Windows 10 x64 or later.

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