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.

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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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    Error message saying "you can only upload the following files:..."

    Asked by UNradio on April 05, 2014 at 09:26 AM

    Anytime someone tries to upload a file, they get the message "You can only upload the following files:..." even when they have selected the correct type of file.  I have tried creating a new form in case the original became corrupted in some way, but the issue persists. 

    What else can be done to correct this issue?

    Page URL:

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    JotForm Support

    Answered by EltonCris on April 05, 2014 at 10:30 AM


    Make all the file extensions in lower case, that should fixed it.