NetworkMonitorLite™ is a tiny (200KB), malware-free Windows app that shows live upload/download speeds in a clean interface, system tray icon, and draggable taskbar widget. Lightweight, portable, and fully compatible with Windows 11.

• Tiny footprint – just around 200KB, making it ultra-fast and resource-friendly
• No malware, no bloat – clean and safe for all systems
• Windows 11 compatible – runs smoothly on modern setups
• Instant visibility – see your network performance at a glance
• No installation required – portable and easy to use

Features

• Live download and upload speed monitoring per active network interface
• Minimal taskbar widget you can drag and place near the system tray
• Tray icon with compact live speeds (no GDI leaks)
• Settings to customize:
  • Widget background color
  • Download and upload text colors
  • Font family, size, and style
• Settings persist across sessions (stored in AppData)

Screenshots

Main UI:

How to Open the taskbar widget:

Settings UI:

Requirements

• Windows 10/11
• .NET 8.0 for Windows (TargetFramework: net8.0-windows)

Build and Run

You can open the project in Visual Studio or use the .NET SDK from PowerShell:

# Build
dotnet build

# Run
dotnet run

Usage

1. Pick a network interface at the top of the main window.
2. Watch live speeds (Download/Upload) and total transfer amounts.
3. Use the tray icon menu:
   • Show Window: bring the main window to front
   • Settings…: open customization dialog
   • Show Taskbar Widget: toggle the small draggable overlay
   • Exit: quit the app

Settings

• Right-click the tray icon and choose "Settings…" to customize:
  • Taskbar widget background color
  • Download and upload text colors
  • Font family, size, and style
• Settings are saved to:
  • %APPDATA%\NetworkMonitorLite\settings.json
  • They load automatically on startup and apply to the widget.

Taskbar Widget behavior

• The widget is set TopMost and additionally forced to the top Z-order using SetWindowPos to avoid slipping behind the taskbar.
• You can drag it by holding the left mouse button anywhere on the widget.

Notes

• The tray icon is drawn on the fly; icon handles are cloned and destroyed to prevent GDI leaks.
• If the primary screen is not available, the app falls back to the first available screen.
• If you don’t see any interfaces, ensure the adapter is up; administrative privileges are typically not required.

Support

• Author: mcagriaksoy — https://github.com/mcagriaksoy/NetworkMonitorLite