UUIDv8

A Go library for generating UUIDv8 identifiers per RFC 9562. UUIDv8 is the newest UUID version, designed for applications that need custom timestamp encoding, database-friendly sorting, and domain-specific node bits – all within the standard 128-bit UUID format.

Why UUIDv8

UUIDv4 is random. UUIDv7 is time-ordered but opinionated about its timestamp layout. UUIDv8 gives you full control over the custom bits while remaining RFC-compliant. This matters when you need deterministic ordering, embedded metadata, or compatibility with systems that validate UUID structure.

Design

Zero external dependencies. The library handles timestamp encoding, clock sequence management, and node ID generation while enforcing the RFC 9562 variant and version bits. The API is deliberately minimal – one function to generate, one to parse.