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YAFGoFlow2
Free

Free and open source under the GPL-2.0-only license.

 Free

Free and open source.

Linux, Command line Linux, Self-hosted, Command line
  • Processes live traffic and PCAP files
  • Exports flow records in IPFIX format
  • Handles NetFlow, IPFIX and sFlow in one collector
  • Normalises different flow protocols into a common format
  • YAF is the data collection component of the CERT NetSA Security Suite; downstream tools process its flow data.
  • Collector only; needs separate storage and dashboards
  • Configuration requires familiarity with flow protocols
Downloadable app Downloadable app, Self-hosted
Open source Open source
License: GPL-2.0-only License not stated
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked October 8, 2026

Checked September 24, 2026

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