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

    Why does the FTP Upload form not allow files to be uploaded

    Asked by secolor on May 05, 2013 at 04:21 PM

    Why does the FTP upload form not allow me or my clients to upload the files I included in the form? You stated that if I include these extensions in the form it would allow uploads. It does not work....why. You convenced me not to cancell my account because you stated the form would work with the extension added. In addition, the clear form button will not clear the failed uploads.

    Page URL:

  • Profile Image
    JotForm Support

    Answered by jonathan on May 05, 2013 at 04:49 PM


    The upload field can only accept up to 1048576 KB or 1GB at a time. It seems you have set about 2GB on  your multiple-upload field.

    You should try to lower also the max file size limit since you are allowing multiple-upload. The multiple upload version is known to have instability when the uploaded files are exceeding 300MB size.

    Please try adjusting the max file size limit on the upload field on your form and then test again.

    Inform us if the issue persists after doing the suggested modification.


  • Profile Image

    Answered by secolor on May 05, 2013 at 05:19 PM
    Thank you for your response. I had this set to 1,000,000 and had just
    changed it thinking the client (on Friday) was limited in her file size. It
    seems to make no difference ( I have been testing different sizes) in what I
    set this amount to. It still has the same result. All I can tell is that
    there must be a browser problem with the form. I will find out on Monday
    which browser she is using. I sent you the result from Opera. Finally after
    not being able to get the form to work I tried it in Safari and it worked


    Henry O'Pry

  • Profile Image
    JotForm Support

    Answered by jonathan on May 05, 2013 at 05:46 PM

    Hi Henry,

    I agree with you on that it is possible that part of the issue is on the browser side.

    I have test the upload field of your form from here http://www.supersupportteam.com/ftp.html using Chrome, Firefox, Safari, and Opera.

    This is on Opera browser


    We will be more than glad to assist you further until this issue is resolve. I will wait for your updates on details on that particular user that encountered this issue.