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How to use the file upload block

Learn everything you need to know to use the file upload block in your forms.


When to use

Use the file upload block to let your respondents upload a file or image to their responses.

Demonstration of a file upload block.

How to use

Add a new block to your form and then select the question type File upload. You can now customize this block to your needs with the following features.

Basic features

Each question block has basic features to present the block the way you need, for example Name, Description and Help text. And most of the question blocks have common options, like the Required option.

More information about these basic features can be found in the help article about our form builder.

Additional features

On top of those basic features, the file upload block has the following advanced options:

  • File size

    By enabling the File size feature, you can determine the maximum file size (in Mb) that respondents can upload.

  • File type

    By enabling the File type feature, you can determine what file type(s) respondents can select. You can supply multiple file types, separated with a comma (,). Make sure you start each file type with the dot (for example .pdf).

Advanced settings of the file upload block.

Branch conditions

Logic is important to make your forms smart and conversational. The file upload block can work with the following branch conditions to help you with that:

Basic conditions

  • File uploaded;
  • No file uploaded.

Evaluate conditions

  • When value matches your filter;
  • When value does not match your filter;
  • When value contains your filter;
  • When value does not contain your filter;
  • When value is specified;
  • When value is not specified.

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