The Regex Coach Regular Expression Creator

Key Features

• The Regex Coach is a graphical application which can be used to experiment with (Perl-compatible) regular expressions interactively.
• It has the following features: * It shows whether a regular expression matches a particular target string.
• * It can also show which parts of the target string correspond to captured register groups or to arbitrary parts of the regular expression.
• * It can \"walk\" through the target string one match at a time.
• * It can simulate Perl\\'s split and s/// (substitution) operators.
• * It tries to describe the regular expression in plain English.
• * It can show a graphical representation of the regular expression\\'s parse tree.
• * It can single-step through the matching process as performed by the regex engine.
• * Everything happens in \"real time\", i.e.
• as soon as you make a change somewhere in the application all other parts are instantly updated.

Technical Specifications

• **Publisher:** Weitz.de
• **License:** Freeware
• **Operating System:** Windows 7, Windows 8, Windows 10, Windows 11
• **Last Updated:** October 15, 2025
• **Category:** Programming / Developer Tools