An open source tool written in C# to build and test regular expressions.

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

The source code shows how to use Regular Expressions in C#.

Describes Regular Expressions and compares them to Finite Automatas.

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.

Native Haskell implementation of polymorphic regular expressions. The regexps contains most of the features found in Perl.

A collection of regular expressions submitted by viewers.

A small library to make working with Regular Expressions a little bit easier. Free source code and tutorials for Windows developers.

Learn how to use regular expressions and perform search and replace operations.

This article, by Scott Mitchell examines how to strip HTML tags from a string using regular expressions.