Reggy
Reggy is a small OS X cocoa/objective-c application to very quickly visualize what a given regular expression will match given a test string. It will also tell you if you have errors in your regular expression.
The Regex Coach
The Regex Coach is a graphical application for Windows which can be used to experiment with (Perl-compatible) regular expressi ...
Regulex
Regulex is an open-source, regular expression parser and visualizer. It's available online, can be embedded in other websites, ...
Expresso
The award-winning Expresso editor is equally suitable as a teaching tool for the beginning user of regular expressions or as a ...
Debuggex
Debuggex is an intuitive visual regular expression debugger, tester, and helper. NOTE: Login/registration relies on Persona w ...
rubular
A ruby based regular expression editor
RegViz
RegViz is a tool for debugging JavaScript regular expressions in a visual way. Advanced highlighting helps you to understand t ...
RegexPal
An online JavaScript regular expression tester. Enter a regex expression and test data and determine if matches are made.
RegExhibit
Having trouble getting your regular expressions just right? Not sure what they match and what they leave out? Tired of having ...