cbor.tech developer tools

Developer tools for binary data formats

Small, focused tools built on the @cbortech open-source libraries. Everything runs locally in your browser — no data leaves your machine.

CBOR ⇄ CDN playground with CDDL validation

Convert between CBOR bytes, Concise Diagnostic Notation (CDN / CBOR-EDN), and JavaScript values, with live validation against CDDL schemas. Annotated hex dumps, lossless round-trips, formatting options, and shareable links.

powered by @cbortech/cbor — RFC 8949, RFC 8610 & draft-ietf-cbor-edn-literals

UUID toolkit

Generate UUID v4 and monotonic UUID v7, and inspect any UUID: version, variant, embedded timestamp, and a color-coded field breakdown for versions 1–8.

powered by @cbortech/uuid — RFC 9562