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bmon vs vnStat: catalog facts
bmon	vnStat
Free Free and open source under BSD and MIT licenses.	Free Free and open source under the GPL.
Linux, Command line	Linux, Command line
Interactive curses interface with live graphs Scriptable text output	Very light, no packet sniffing Statistics persist across reboots
Terminal only Development is slow compared with newer tools	Linux and BSD only Console output by default; graphs need the separate image tool
Downloadable app	Downloadable app
Open source	Open source
License: BSD-2-Clause AND MIT	License: GPL
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

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