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Knot Resolver vs Technitium DNS Server: catalog facts
Knot Resolver	Technitium DNS Server
Free Free to download and use under the GPL.	Free Free and open source under the GPL.
Linux, Self-hosted	Windows, macOS, Linux, Self-hosted
Small core with features in optional C and Lua modules Scales from home routers to large deployments	Authoritative and recursive in one server, so it hosts your zones and resolves everything else Blocks ads and malware for every device on the network without per-device setup
Configured by hand, with no graphical dashboard Some newer features, such as unencrypted DoH mode, are still alpha	Considerably more complex than Pi-hole if all you want is ad blocking Running your own DNS means DNS outages become your problem
Self-hosted	Self-hosted, Downloadable app
Open source	Open source
License: GPL	License: GPL-3.0
No account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 21, 2026

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