The Regex Coach
A graphical Common Lisp application which can be used to experiment with (Perl-compatible) regular expressions interactively.

It has been downloaded more than 500,000 times since 2003 and is thus probably one of the most widespread CL programs out there. The Regex Coach was written by Edi Weitz.

Homepage: at

License: some restrictions on commercial use

Topics: appplication, regular expression