Validate a UUID and detect its version (v1-v8) online, in your browser.
Check whether a string is a well-formed UUID and report its version (1–8) and RFC 4122 variant. The all-zero nil UUID is recognised too.
The first character of the third group encodes it — 4 for random v4, 1 for time-based v1, and so on. This tool reads it for you.
No — UUIDs are case-insensitive; this validator accepts upper or lower case.