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NetworkCountersWatch vs vnStat: catalog facts
NetworkCountersWatch	vnStat
Free Freeware from NirSoft; it may not be sold or bundled with commercial products.	Free Free and open source under the GPL.
Windows	Linux, Command line
Per-interface byte, packet, error and discard counters Live upload and download speed	Very light, no packet sniffing Statistics persist across reboots
Windows XP is not supported Showing all interfaces can list several with identical counters	Linux and BSD only Console output by default; graphs need the separate image tool
Downloadable app	Downloadable app
Closed source	Open source
License: Freeware	License: GPL
No account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.