Regex Editor & Tester

This regex matches any single character that is NOT a letter (a-z, A-Z), digit (\d), or whitespace (\s) — effectively capturing all special characters and symbols such as @, #, $, %, and punctuation marks. With the global and multiline flags, it finds every occurrence across all lines of input. It's commonly used for input validation, detecting unwanted symbols in user input, or sanitizing text by flagging non-alphanumeric characters.