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What file extensions does the File Upload support?

123FormBuilder is a free online form builder with file upload functionality. Users can collect files from their respondents through form submissions by adding file upload fields to the form.

All supported file extensions of the File Upload field are located in the Validation section, within the field’s options. To allow only certain file extensions upon upload, at File types accepted use the drop down list to check the extensions you want to use.

file types upload field

If you need a new file extension, simply click on Add.
add new extension

4 comments

    1. Hello Amanda,

      In order to remove any field from your form, please login in your 123FormBuilder account , go to My forms and click on your form to edit it. To permanently delete a field, simply click on it and choose the Delete option from the left panel.

      Thanks

  1. Hi guys,

    The new editor does not appear to have the “advanced” tab. I can’t select or review what file types are supported for upload.

    Please assist.

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