Regex Hero is an online app or website that helps users learn and practice regular expressions (or regexes) in a fun and interactive way. It features a drag-and-drop interface that allows users to quickly and easily construct regex patterns. It also includes an editor for testing out the regexes and a library of examples for users to reference. Regex Hero has a variety of quizzes, tutorials, and tools to help users become more proficient in regex. It also offers a range of online resources to help users find more information about regex and learn more about the subject.
Visual REGEXP was last discontinued in 2006.