"Global Regular Expression Print is a staple of every command-line user’s toolbox. As with find, it derives a lot of power from being combined with other tools and can increase your productivity significantly."

Regular Expression Library provides a searchable database of regular expressions. Users can add, edit, rate, and test regular expressions.

"Tired of debugging your regular expressions ? Do you want to quickly build efficient regexps ? Visual REGEXP is for you ! This software will let you design your regexps by letting you type the expression and visualize its effect on a sample of your choice."