Do you get confused every time you want to understand, or construct a Regular Expression (Regex)?
Well other than blaming the original inventor for coming up with the constructs 🤣 you can use this tool to help. It will decode and graphically explain any regex you care to paste there:
The following for example is the decoded Mastercard Regex: ^5[1-5][0-9]{14}$
Other useful Regex sites include:
