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WiresharkNetworkTrafficView
Free

Free and open source. The foundation is funded by sponsors, training and certification.

 Free

Freeware from NirSoft with no paid tier.

Windows, macOS, Linux Windows
  • Dissectors for hundreds of protocols, so the packet contents are readable rather than hex
  • Display filters that cut a huge capture down to one conversation
  • Per-connection statistics with speed, size and packet counts
  • Shows the process behind TCP connections
  • Capturing on most systems needs elevated privileges or a driver such as Npcap
  • The interface assumes you already know roughly what you are looking for
  • Requires the Npcap driver or another capture driver
  • Official requirements list Windows 2000 to Windows 10 only
Downloadable app Downloadable app
Open source Closed source
License: GPL-2.0 License: Freeware
No account needed No account needed
Works offline Not stated if it works offline

Checked September 20, 2026

Checked October 8, 2026

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