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DNSMonitor vs DNSLookupView: catalog facts
DNSMonitor	DNSLookupView
Free Free and open source under the GPL-3.0 licence.	Free Freeware from NirSoft that may be redistributed free of charge.
macOS, Command line	Windows
Shows DNS lookups made by software on the Mac Built on Apple's Network Extension framework	Shows which process requested each DNS lookup Include and exclude filters for domains
Command-line only, with no graphical interface macOS only	Works only on Windows 8.1, 10 and 11 Only sees queries handled by the Windows DNS Client service
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0	License: Freeware
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 8, 2026

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