Regex Tester & Validator

This regex matches zero or more characters in the ASCII range from 'A' (65) to 'z' (122), which includes all uppercase and lowercase letters as well as the punctuation characters '[', '\', ']', '^', '_', and '`'. It is often used for quick but imprecise matching of letter-like sequences, though it is generally discouraged because it unintentionally matches non-letter symbols. Use cases include simple text filtering or validation in informal contexts, but for proper letter matching it is better to use [a-zA-Z] or Unicode-aware classes.