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Subfinder vs DNSDumpster: catalog facts
Subfinder	DNSDumpster
Free The open-source software is available without a license fee. Hosting, hardware and…	Free Free to use in the browser.
Windows, macOS, Linux, Command line	Web
Combines results from multiple discovery services.	Nothing to install Quick overview of a domain's visible hosts
Some data sources require API credentials or impose limits.	Intended for authorized testing and checking your own domains Results depend on publicly available DNS data
Downloadable app	Web application
Open source	Closed source
License: MIT	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 24, 2026

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