DzSoft Perl Editor
classic and powerful perl cgi scripts editor with interated debugging features
EasyPattern Engine
Make text matching easy - add EasyPattern Engine to your application!
RegexBuddy
learn, create, understand, test, debug, use and save regular expressions
PowerGREP
find the files and information you want; search and replace large sets of files
Advanced Find and Replace
search documents with smart queries and batch replace lines of text!