UUID v4

Matches a UUID version 4 — randomly generated universally unique identifier in the standard 8-4-4-4-12 format.

✓ Database primary keys✓ API resource IDs✓ Session tokens

Test String

2 matches

550e8400-e29b-41d4-a716-446655440000
6ba7b810-9dad-41d1-80b4-00c04fd430c8

[…]{8}Character class […]— Matches any single character listed in this set — repeated exactly 8 times · {8} — exactly 8 times

0-90-9— 0-9 — range from '0' to '9'

a-fa-f— a-f — range from 'a' to 'f'

--— '-' — literal character

[…]{4}Character class […]— Matches any single character listed in this set — repeated exactly 4 times · {4} — exactly 4 times

0-90-9— 0-9 — range from '0' to '9'

a-fa-f— a-f — range from 'a' to 'f'

--— '-' — literal character

44— '4' — literal character

[…]{3}Character class […]— Matches any single character listed in this set — repeated exactly 3 times · {3} — exactly 3 times

0-90-9— 0-9 — range from '0' to '9'

a-fa-f— a-f — range from 'a' to 'f'

--— '-' — literal character

[…]Character class […]— Matches any single character listed in this set

88— '8' — literal character

99— '9' — literal character

aa— 'a' — literal character

bb— 'b' — literal character

[…]{3}Character class […]— Matches any single character listed in this set — repeated exactly 3 times · {3} — exactly 3 times

0-90-9— 0-9 — range from '0' to '9'

a-fa-f— a-f — range from 'a' to 'f'

--— '-' — literal character

[…]{12}Character class […]— Matches any single character listed in this set — repeated exactly 12 times · {12} — exactly 12 times

0-90-9— 0-9 — range from '0' to '9'

a-fa-f— a-f — range from 'a' to 'f'

Pattern: 67 charsInput: 73 chars

100% client-side · private

✓ Valid Examples