How to show name of a file before uploading it.

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Hi Everyone!

I want to show the name of a file using JavaScript or jQuery before it is uploaded by the server. I've researched about it and instead I learned how to preview an image before it is uploaded. But the file I wish to upload may not be an image so I need to show the name.

Here is the code to show preview of an image, can it be modified to show the name instead?:


<form method="post" name="form" enctype="multipart/form-data">
 <input type="file" name="attachment" onchange="read_input(this);" />
Javascript + jQuery:

function read_input(input) {

    if (input.files && input.files[0]) {

        var reader = new FileReader();

        reader.onload = function (e) {

            result =;

            $(".attachment").html('<img src="'+result+'" alt="preview" />');





Thanks in advance!

  1. Re: How to show name of a file before uploading it.

    Hi Jeet!

    You can try following line of code

    document.getElementById('upload').onchange = uploadOnChange;

    function uploadOnChange() {
        var filename = this.value;
        var lastIndex = filename.lastIndexOf("\\");
        if (lastIndex >= 0) {
            filename = filename.substring(lastIndex + 1);
        document.getElementById('filename').value = filename;


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