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dnsx vs MassDNS: catalog facts
dnsx	MassDNS
Free The open-source software is available without a license fee. Hosting, hardware and…	Free Free and open source under GPL-3.0.
Windows, macOS, Linux, Command line	Windows, Linux, Command line
Supports multiple record types and custom resolvers.	Handles bulk DNS lookups Reads resolver lists and domain names from files
Results depend on the resolvers and DNS data you query.	Intended for authorized DNS reconnaissance and testing
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-3.0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 8, 2026

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