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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    Duplicate forms

    Asked by kristywa on December 28, 2015 at 10:54 AM

    How do I make it where no one can submit duplicate forms based on email address?


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    JotForm Support

    Answered by BJoanna on December 28, 2015 at 11:48 AM

    Thank you for contacting us. 

    Inside of this guide you can find out how to set Form Limits Based on a Unique Question:


    You can take advantage of our unique submission feature to block multiple submissions from one system of one IP address by setting the "Loose check" or "Strict Check" respectively. Here is a guide to help you set unique submission in your form:  http://www.jotform.com/help/64-How-to-Set-Unique-Submissions-on-a-Form 

    Hope this will help. Let us know if you need further assistance.