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ntopng vs darkstat: catalog facts
ntopng	darkstat
Freemium Licensed editions are sold by ntop, listed as models on the product page.	Free Free software under GPL and other licenses.
Windows, macOS, Linux, Self-hosted	macOS, Linux
Application detection powered by nDPI Real-time and historical traffic in a web interface	Shows traffic graphs and per-host usage Includes an embedded web server for reports
Some features need a paid licence Needs a mirror port, TAP or flow exporter to see network traffic	Requires libpcap.
Downloadable app, Self-hosted	Downloadable app
Closed source	Open source
License not stated	License: GPL-2.0-only
Not stated if an account is 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.