Compare software

WiresharkDNSQuerySniffer
Free

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

 Free

Freeware from NirSoft; it may not be sold or bundled with commercial products.

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
  • Shows every DNS query with response records and timing
  • Highlights failed and unanswered lookups
  • 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
  • Raw Sockets capture may not work on some systems without WinPcap or Network Monitor driver
  • Timing is more accurate only with a capture driver installed
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.