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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    How do I default a value on my form from the calling web page?

    Asked by philcaple on November 18, 2014 at 01:07 AM
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    JotForm Support

    Answered by abajan on November 18, 2014 at 07:09 AM

    Our Prepopulate app can be used for that. Please view the video you see there (also below) in HD and fullscreen on YouTube:

    If you wish to embed the iFrame version of the jotform into your web page, you would do the following:

    1. Get the iFrame code, as explained in this guide

    2. Use the Prepopulate app to fill in whichever fields you want, as described in the video above

    3. In the iFrame code, replace the form's URL with the code generated by the app. For example, if the iFrame code has


    you would change the part in red to whatever code was generated by the app.

    4. Insert the altered code into your web page's body and save the page

    That's it. If you need clarification on anything, please let us know.