What is JotForm?
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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    I would like to allow the person to add additional input field

    Asked by bfawcett on August 20, 2016 at 01:10 AM
    I would like to allow the person to add additional children. i only want the extra fields for additional children to be added to a form, if the person filling them out needs them. How do i set that up with the fewest number of columns (so the response spreadsheet is not unwieldy to work with).
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    JotForm Support

    Answered by jonathan on August 20, 2016 at 01:47 AM

    How about using the Dynamic Textbox widget?

    This widget is a minimalist and will not take too much space on your form.

    Demo form : https://form.jotform.com/61654058786972

    The widget can be used in Calculation as well. The number of textbox added can be counted (it has a value of 1).

    Let us know how it goes.