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    Blob.size

    Summary

    Returns the size of the file in bytes.

    Syntax

    var filesize = instanceOfFile.size
    

    Value

    A number.

    Example

    // fileInput is a HTMLInputElement: <input type="file" multiple id="myfileinput">
    var fileInput = document.getElementById("myfileinput");
    
    // files is a FileList object (simliar to NodeList)
    var files = fileInput.files;
    
    for (var i = 0; i < files.length; i++) {
      alert(files[i].name + " has a size of " + files[i].size + " Bytes");
    }

    Specifications

    Specification Status Comment
    File API
    The definition of 'size' in that specification.
    Working Draft Initial definition.

    Browser compatibility

    Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
    File.name 5 Unknown (4) 10.0 11.10 5.1
    Feature Android Firefox Mobile (Gecko) IE Phone Opera Mobile Safari Mobile
    File.name Not supported Not supported Not supported Not supported Not supported

    See also

    Document Tags and Contributors

    Contributors to this page: Sheppy, fscholz, ziyunfei, Cobra, ethertank, Jeremie, Crash
    Last updated by: fscholz,