RegexBuddy is an interactive development tool that helps users learn, develop, and test regular expressions. It provides a user-friendly interface with helpful features such as syntax highlighting, automatic syntax checking, and a library of pre-defined regular expressions. It also allows users to visually test and debug their expressions, and generate code in various programming languages. RegexBuddy also offers an intuitive regex tutorial, which helps users understand the structure of regular expressions and provides tips on how to create their own.
It only supports 2 engines, while RegexBuddy 3.6 can simulate 15 flavors (Java, perl, python, ruby, tcl, ...).
Visual REGEXP was last discontinued in 2006.
regular expression tester, but missing regular expressions from other engines (Perl Python Tcl, etc.)
Easy to use, web-accessible, replacement function, documentation, explanation function