Simple jQuery Ajax File Upload. This codes took from https://stackoverflow.com/questions/2320069/jquery-ajax-file-upload

file.html

<input type="file" name="upload_photo_m" id="upload_photo_m" />

<div id="progress-wrp">
	<div class="progress-bar"></div>
	<div class="status">0%</div>
</div>

progress-bar.css

#progress-wrp {
	border: 1px solid #0099CC;
	padding: 1px;
	position: relative;
	height: 30px;
	border-radius: 3px;
	margin: 10px;
	text-align: left;
	background: #fff;
	box-shadow: inset 1px 3px 6px rgba(0, 0, 0, 0.12);
}

#progress-wrp .progress-bar {
	height: 100%;
	border-radius: 3px;
	background-color: #f39ac7;
	width: 0;
	box-shadow: inset 1px 1px 10px rgba(0, 0, 0, 0.11);
}

#progress-wrp .status {
	top: 3px;
	left: 50%;
	position: absolute;
	display: inline-block;
	color: #000000;
}

script.js

$("input[name=upload_photo_m]").on("change", function (e) {
    var file = $(this)[0].files[0];
    var upload = new Upload(file);

    // maby check size or type here with upload.getSize() and upload.getType()

    // execute upload
    upload.doUpload();
});

upload.js

var Upload = function (file) {
    this.file = file;
};

Upload.prototype.getType = function() {
    return this.file.type;
};
Upload.prototype.getSize = function() {
    return this.file.size;
};
Upload.prototype.getName = function() {
    return this.file.name;
};
Upload.prototype.doUpload = function () {
    var that = this;
    var formData = new FormData();

    // add assoc key values, this will be posts values
    formData.append('upload_file', this.file, this.getName());
    // "profile_image_upload" is your Ajax action name ( if you want to use in WordPress theme )
    formData.append('action', 'profile_image_upload');

    $.ajax({
        type: "POST",
        dataType: 'JSON',
        url: 'YOUR_AJAX_URL',
        xhr: function () {
            var myXhr = $.ajaxSettings.xhr();
            if (myXhr.upload) {
                myXhr.upload.addEventListener('progress', that.progressHandling, false);
            }
            return myXhr;
        },
        success: function (data) {
            console.info('data: ', data);
             // Do sth if result success
        },
        error: function (error) {
            console.info('error: ', error);
             // Do sth if there is an error
        },
        async: true,
        data: formData,
        cache: false,
        contentType: false,
        processData: false,
        timeout: 60000
    });
};

Upload.prototype.progressHandling = function (event) {
    var percent = 0;
    var position = event.loaded || event.position;
    var total = event.total;
    var progress_bar_id = "#progress-wrp";
    if (event.lengthComputable) {
        percent = Math.ceil(position / total * 100);
    }
    // update progressbars classes so it fits your code
    $(progress_bar_id + " .progress-bar").css("width", +percent + "%");
    $(progress_bar_id + " .status").text(percent + "%");
};