File exists transform Icon File exists


The File Exists transforms verifies the existence of a file. The filenames to check are read from pipeline fields.

The transform outputs a boolean flag field, indicating whether a file exists or doesn’t.

Supported Engines

Hop Engine



Maybe Supported


Maybe Supported


Maybe Supported


Option Description

Transform name

Name of the transform; This name has to be unique in a single pipeline

Filename field

The input field that will contain the filename at runtime

Result fieldname

The name of the field that will contain the boolean flag.

Add filename to result

Enable this option if you want to add the filename to the list of filenames that can be used in the next workflow action.

Include file type

Include the file type in a field.

File type field

The name of the field that will contain the file type as a String: "file", "folder", "imaginary"