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FastNetMonntopng
Free

The Community Edition is free; FastNetMon Advanced is commercial.

 Freemium

Licensed editions are sold by ntop, listed as models on the product page.

macOS, Linux, Command line Windows, macOS, Linux, Self-hosted
  • Collects data from common flow protocols and packet capture
  • Can trigger notifications, scripts or BGP announcements
  • Application detection powered by nDPI
  • Real-time and historical traffic in a web interface
  • Designed for network operators and requires traffic source configuration
  • 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

Checked October 8, 2026

Checked September 23, 2026

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