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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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    Allowing file type extension in file upload tool

    Asked by Adam Mason  on February 23, 2016 at 11:08 PM


    I am interested in using JotForm for my website. I intend to have a customer fill out a basic contact form along with a file upload option that integrates with my company's Google Drive. 

    However, when I performed a test file upload, I received an error that the filetype I added was not valid. I attempted to upload a .STL file and received the error.

    Is there any way that JotForm would be able to open up the accepted filetypes that can be uploaded to Google Drive?

    Thank you,

    Adam Mason

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    JotForm Support

    Answered by Jan on February 24, 2016 at 07:50 AM

    I cloned your form and found out that there is no "stl" file type in the file extensions allowed in upload file tool.

    Please select the upload file tool and then click the "Extensions" in the top toolbar. Here, you need to add "stl" option.

    Helpful guide: http://www.jotform.com/help/29-Upload-Field-Allowed-File-Types

    Hope that helps. Thank you.