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Hickory DNS vs sdns: catalog facts
Hickory DNS	sdns
Free Free to use from its GitHub repository.	Free Free to use from its GitHub repository.
Linux, Self-hosted, Command line	Linux, Self-hosted, Command line
Written in memory-safe Rust Server and resolver in one project	Full recursive resolution without a public upstream Built-in blocklist filtering
Configured by file with no graphical interface Renamed from Trust-DNS, so older guides use the previous name	Configured by file with no graphical interface Smaller community than Unbound or Pi-hole
Self-hosted	Self-hosted
Closed source	Closed source
License not stated	License not stated
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 2, 2026

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