Knot DNS — DNS server (Open Source)

Knot DNS is an open-source DNS server solution from CZ.NIC. Compare it against 5 other DNS server tools on FreeSoftwareX — by features, licensing and price — and request a quote or demo free in 2026.

What is Knot DNS?

Knot DNS is open source — its source code is publicly available and free to use, modify and self-host, usually with an active community and no licensing fees. It is categorised under DNS server and published by CZ.NIC. Buyers typically evaluate Knot DNS when they need a dependable DNS server option and want to weigh the trade-offs between free, open-source and paid tools before committing.

Knot DNS alternatives

If Knot DNS isn't the right fit, compare these DNS server alternatives side by side:

BindCoreDNSNSDPowerDNSdnsmasq

Frequently asked questions

Is Knot DNS free?
Yes. Knot DNS is open source and free to use, with no purchase cost for the core product.
What are the best Knot DNS alternatives?
Popular DNS server alternatives to Knot DNS include Bind, CoreDNS, NSD, PowerDNS. See the full list of DNS server on FreeSoftwareX.
What type of software is Knot DNS?
Knot DNS is an open-source DNS server tool developed by CZ.NIC.

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