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