A Firefox add-on that allows you to test regular expressions.
Version: 184.108.40.206Testing Tool for regular expressions with color highlighting
Operating System: Mac OS X
Regular Expressions Tester offers developers functions for testing their regular expressions.
The Tool includes options like case sensitive, global and multiline search, color highlighting for found expressions, a replacement function incl. backreferences, auto-closing of brackets, testing while writing and saving and managing of expressions.