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ntopng vs nfdump: catalog facts
ntopng	nfdump
Freemium Licensed editions are sold by ntop, listed as models on the product page.	Free Free and open source under a BSD license.
Windows, macOS, Linux, Self-hosted	Linux, Self-hosted, Command line
Application detection powered by nDPI Real-time and historical traffic in a web interface	Supports NetFlow, IPFIX and sFlow Filtering and aggregation of stored flow records
Some features need a paid licence Needs a mirror port, TAP or flow exporter to see network traffic	Command-line only, with no built-in graphical interface Needs network devices configured to export flow data
Downloadable app, Self-hosted	Downloadable app, Self-hosted
Closed source	Open source
License not stated	License: BSD
Not stated if an account is needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 24, 2026

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