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.

At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.

We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.


  • Profile Image

    Is there a way to constrain the allowed values in a number field?

    Asked by 2005Vibe on August 19, 2016 at 12:13 PM

    I'm creating a bidding form, and want to limit the minimum bid and also the bidding increments (if possible)

    in values a allowed
  • Profile Image
    JotForm Support

    Answered by david on August 19, 2016 at 01:45 PM

    Number fields can have a set minimum and maximum.  However, number fields do not allow for setting increments.  To allow for both a min/max value and stepping, use a spinner field instead:

    Number fields have the min/max value option in the same place, though they do not have the stepping option.