Regex Tester & Validator
Test, validate and match regular expressions
Test, validate and match regular expressions
Matches a serial number or license key format consisting of 5 groups of 5 uppercase letters or digits separated by hyphens (e.g., ABCDE-FGHIJ-KLMNO-PQRST-UVWXY). Requires whitespace or string boundaries around the match. Useful for validating software activation codes, product keys, or similar alphanumeric identifiers.