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Tools/Regex

UUID

What this is

The third group starts with version 1–5 and the fourth with variant 8, 9, a, or b. Nil UUID 0000… is version 0 and will not match this strict pattern.

/\b[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-5][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}\b/g
550e8400-e29b-41d4-a716-446655440000
not-a-uuid

Open in tester

FAQ

UUIDv7?
Version 7 is now common. Change [1-5] to [1-8] if you need it.

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