Introduced in Gecko 1.9

(Firefox 3)

An object of this type is returned by the files property of the HTML input element; this lets you access the list of files selected with the <input type="file"> element. It's also used for a list of files dropped into web content when using the drag and drop API; see the DataTransfer object for details on this usage.

Gecko 1.9.2 note

Prior to Gecko 1.9.2, the input element only supported a single file being selected at a time, meaning that the FileList would contain only one file. Starting with Gecko 1.9.2, if the input element's multiple attribute is true, the FileList may contain multiple files.

Using the file list

All <input> element nodes have a files array on them which allows access to the items in this list. For example, if the HTML includes the following file input:

<input id="fileItem" type="file">

The following line of code fetches the first file in the node's file list as a File object:

var file = document.getElementById('fileItem').files[0];

Method overview

File item(index);


Attribute Type Description
length integer A read-only value indicating the number of files in the list.



Returns a File object representing the file at the specified index in the file list.

 File item(
The zero-based index of the file to retrieve from the list.
Return value

The File representing the requested file.


This example iterates over all the files selected by the user using an input element:

// fileInput is an HTML input element: <input type="file" id="myfileinput" multiple>
var fileInput = document.getElementById("myfileinput");

// files is a FileList object (similar to NodeList)
var files = fileInput.files;
var file;

// loop trough files
for (var i = 0; i < files.length; i++) {

    // get item
    file = files.item(i);
    file = files[i];



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