NetWatch – Internet Data Usage Monitor

Windows 10/11 · Python 3.10+

By Rizinkovic

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What it does

Feature	Details
Auto-activates	Starts tracking the moment Windows boots (optional)
Live speeds	Download ↓ and Upload ↑ in KB/s or MB/s, refreshed every 2 s
Daily counters	Today's download + upload
Session total	Since the app was last launched
Bar graph	7-day or 30-day view (blue = download, green = upload)
Persistent data	Stored in %APPDATA%\NetWatch\usage.json – survives reboots
Autostart toggle	One click to enable/disable Windows startup entry
Minimize to taskbar	Close button asks whether to keep running or quit

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Quick Start (run as Python script)

# 1. Install dependencies (once)
pip install psutil

# 2. Run
python netwatch.py

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Build a standalone .exe (no Python needed on target PC)

Option A – Double-click

1. Install Python from https://python.org (check "Add to PATH")
2. Double-click build.bat
3. Find dist\NetWatch.exe — copy it anywhere, run it.

Option B – Manual

pip install psutil pyinstaller
pyinstaller --onefile --windowed --name NetWatch netwatch.py

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Files

netwatch.py     ← main source (only file you need to run/edit)
netwatch.spec   ← PyInstaller build config
build.bat       ← Windows build helper
README.md       ← this file

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Data file location

C:\Users\<You>\AppData\Roaming\NetWatch\usage.json

Delete this file to reset all counters.

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Notes

• Tracks all network interfaces combined (WiFi + Ethernet + VPN etc.)
• Data is saved every ~30 seconds and on clean exit
• Autostart writes to HKCU\Software\Microsoft\Windows\CurrentVersion\Run (user-level, no admin rights needed)