Regex Storm is an invaluable online resource for .NET developers specializing in regular expressions. The platform offers a robust .NET regex tester, allowing users to build and test expressions with real-time highlighting for immediate feedback. It also provides a comprehensive .NET regex reference, detailing various elements and constructs with practical examples. Launched in 2010, Regex Storm has been a free, open-source tool, continually updated to enhance its utility. With a focus on practical application and educational support, Regex Storm is an essential asset for anyone working with .NET regular expressions.