An online tool for creating and testing regular expressions.

A tool that allows programmers to generate a working program in a variety of languages that extracts data mined regular expressions from strings.

A simple JavaScript real-time regular expression evaluator, similar to RX tool of Activestate's Komodo IDE.

An article by Jan Borsodi that gives an introduction to the world of regular expressions. It explains what regular expressions are and introduces the syntax. Also provides examples with varying complexity and a list of tools which use regular expressions.

An online utility that helps analyzing regular expression structure.

Regular expression library for Visual Basic and Visual Basic for Applications.

Uses browser's JavaScript to show matches and subgroups, and highlights match in the input string.

Shows how to use the power of regular expressions to ease text parsing and processing.

Brings the power of regular expression searching and replacing to Frontier 5. [GPL]

Graphical application for Windows which can be used to experiment with Perl-compatible regular expressions interactively.