UUID Generator

UUID Generator creates random version 4 UUIDs, 128 bit identifiers formatted as the familiar 8-4-4-4-12 hex string, generated using your browser's own cryptographically secure random number generator.

Reach for this when you need a unique identifier for a database record, a test fixture, a temporary file name, or anywhere else a value just needs to be practically guaranteed unique without coordinating with anything else.

Version 4 UUIDs are random rather than derived from anything like a timestamp or hardware address, so there is nothing to extract from one beyond the value itself.