Numa

Judgement

What it is

Developer tool

What it does

A single-binary DNS resolver that blocks ads, gives local services names like frontend.numa, overrides hostnames temporarily, and can send queries over DoT, DoH or ODoH with DNSSEC.

Adopt it when

You want local domain names for development services and ad blocking on your own machine without running Pi-hole on separate hardware.

Watch out

Still below 1.0 with a single main maintainer, and changing your system resolver can break networking if it fails.

Ready for

Experimental

Runs as

Command line and self-hosted server

Built with

Rust and Tokio

How established

Established: started 5 years ago, latest release v0.25.0.

What the license allows

You can build it into a product you sell, as long as you keep its copyright notice.

Judged on 2026-11-06 from the project's README and GitHub data. The license and age lines are worked out directly.

Built from

Follow it down: Numa → Rust → runs on a microchip

How compilers were built, back to punched paper tape

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