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Stubby vs AdGuard DNS CLI: catalog facts
Stubby	AdGuard DNS CLI
Free Free and open source under the BSD licence.	Free The client is free and open source.
Windows, macOS, Linux, Command line	Windows, Command line
Encrypts the last mile of DNS for the whole machine, not just one browser Strict profile refuses to fall back to unencrypted DNS	Lightweight local DNS server forwarding to AdGuard DNS YAML configuration file
Configuration is a YAML file with no interface Only protects the path to the resolver; the resolver still sees your queries	Built around the AdGuard DNS service Command-line and config file only, with no graphical interface
Downloadable app	Downloadable app
Open source	Open source
License: BSD-3-Clause	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 23, 2026

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