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JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.

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    How do I create a custom Regular Expression Validator?

    Asked by Shank on November 25, 2013 at 08:48 AM

    I want to create a contact us page for my project website. I want to implement this page with a custom regular expression validator,which is like this for example 123705P. First 6 digits with 1 last letter. Can you please send me the expression?

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    JotForm Support

    Answered by Welvin on November 25, 2013 at 10:14 AM

    Hi Shank,

    You can do that with our Text Box or Phone Number field with masking enabled. 

    Use "#" character to mask number inputs and "@" character to mask letter inputs. Example form: http://www.jotformpro.com/form/33284630423954.

    Let us know if you need further assistance.

    Thanks