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vnStat vs darkstat: catalog facts
vnStat	darkstat
Free Free and open source under the GPL.	Free Free software under GPL and other licenses.
Linux, Command line	macOS, Linux
Very light, no packet sniffing Statistics persist across reboots	Shows traffic graphs and per-host usage Includes an embedded web server for reports
Linux and BSD only Console output by default; graphs need the separate image tool	Requires libpcap.
Downloadable app	Downloadable app
Open source	Open source
License: GPL	License: GPL-2.0-only
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 8, 2026

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