Regex Tester & Validator
Test, validate and match regular expressions
Test, validate and match regular expressions
Matches a 32-character hexadecimal string (digits 0-9 and letters A-F, case-insensitive due to the i flag), anchored to the start and end of a line. This is the exact format of OpenWeatherMap API keys, making it useful for validating user-submitted keys before making API requests. The m flag enables matching across multiple lines and g finds all occurrences in a string.