HEATKEYS

A visual regex helper

Rubular is a Ruby-based regular expression editor and tester. It

Myregextester.com is an online regular expressions tester that allows visitors to construct, test, and optimize regular expressions.

Online Silverlight regular expression tester with instantaneous highlighting, C# and VB.NET code generation, code completion, regex analysis, benchmarking, and more.

At Regular-Expressions.info you will find a wide range of in-depth information about a powerful search pattern language called regular expressions.

Best practices, URL-rewriting and Java URL Rewrite Filter tools, test-driven development, agile software methodology, component based design. We make software you can love.

Online tool for building and testing .NET regular expressions. Features a .NET regex tester and complete .NET regex reference.

Pythex is a real-time regular expression editor for Python, a quick way to test your regular expressions.

A community committed to sharing Perl knowledge and coding tips. The site contains questions and answers, useful snippets, and a library of code.