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NetworkTrafficViewWireshark
Free

Freeware from NirSoft with no paid tier.

 Free

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

Windows Windows, macOS, Linux
  • Per-connection statistics with speed, size and packet counts
  • Shows the process behind TCP connections
  • 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
  • Requires the Npcap driver or another capture driver
  • Official requirements list Windows 2000 to Windows 10 only
  • 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
Downloadable app Downloadable app
Closed source Open source
License: Freeware License: GPL-2.0
No account needed No account needed
Not stated if it works offline Works offline

Checked October 8, 2026

Checked September 20, 2026

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