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.

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    There's any method to validate the data of the form with javascript or ajax to prevent bad data or emplty input boxes in received forms?

    Asked by juanra on July 11, 2012 at 12:53 PM
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    JotForm Support

    Answered by NeilVicente on July 11, 2012 at 01:02 PM

    If you're using JotForm to create your forms, you may just set the fields as Required to prevent the form from submitting if a field is left empty.

    Check out this sample form: https://www.jotform.com/form/20362414165

    (Fields with a red asterisk are set as required)