This free version includes the following features:
- Real-time highlighting of regex matches.
- Match, Replace, and Split modes.
- Code completion for regular expressions.
- .NET code generation.
- Complete .NET regex reference.
- (New) Automatically terminates long-running regular expressions and allows you to run them manually with a button press.
- Windows 10 (version 1809 or later)
- Windows 11 (any version)
Right now you can only download it by visiting the link but soon it'll be searchable within the Microsoft Store. And the current plan is to later release a Standard and Professional version with some of the more advanced features just as Regex Hero used to have. Eventually, if .NET MAUI is as good as initial reports would suggest I may be able to create a version that runs on the Mac as well.