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Packetbeat vs ntopng: catalog facts
Packetbeat	ntopng
Free Free to download; paid Elastic offerings exist for the wider stack.	Freemium Licensed editions are sold by ntop, listed as models on the product page.
Command line	Windows, macOS, Linux, Self-hosted
Decodes many application protocols Passive capture with no latency added	Application detection powered by nDPI Real-time and historical traffic in a web interface
Needs Elasticsearch or Logstash to be useful Agent with no interface of its own	Some features need a paid licence Needs a mirror port, TAP or flow exporter to see network traffic
Downloadable app	Downloadable app, Self-hosted
Closed source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 23, 2026

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