• Real-time as-you-type highlighting of regex matches
  • C# and VB.NET code generation
  • Regular expression syntax highlighting
  • Regular expression code completion

3085 registered programmers rely on Regex Hero

The .NET Regex Tester

Is Regex Hero completely compatible with the .NET flavor of regular expressions?

Yes. Regex Hero is built entirely with .NET and uses the .NET Regex class directly.

How do I get multiline matching to work?

There are a couple things that might trip you up here. First, the ^ and $ anchors will normally assert the beginning and end of the entire string. You'll have to check the "multiline" option in Regex Hero for ^ and $ to match the beginning an end of every line. Second, there's the "CrLf marks a line ending" setting. If you check this then a carriage return/line feed combination will end every line. Otherwise, only line feeds are used.

Is there a Mac version available?

Not yet. I hope to have a version on the Apple Store in 2023.

"Nice Silverlight-based Regular Expression workbench."

"I really like what you have done with Regex Hero. Simple, elegant, takes big expressions, etc., and above all - .NET."

"I've come to depend on Regex Hero for one problem I work on almost constantly lately. I doubt it would have been possible for me to come as far as I have without your excellent little regex tester."