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How TO - JavaScript Progress Bar

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Learn how to create a progress bar using JavaScript.


Creating a Progress Bar

Step 1) Add HTML:

Example

<div id="myProgress">
  <div id="myBar"></div>
</div>
Step 2) Add CSS:

Example

#myProgress {
  width: 100%;
  background-color: grey;
}

#myBar {
  width: 1%;
  height: 30px;
  background-color: green;
}
Step 3) Add JavaScript:

Create a Dynamic Progress Bar (animated) Using JavaScript:

Example

var i = 0;
function move() {
  if (i == 0) {
    i = 1;
    var elem = document.getElementById("myBar");
    var width = 1;
    var id = setInterval(frame, 10);
    function frame() {
      if (width >= 100) {
        clearInterval(id);
        i = 0;
      } else {
        width++;
        elem.style.width = width + "%";
      }
    }
  }
}
Try it Yourself »

Add Labels

If you want to add labels to indicate how far the user is in the process, add a new element inside (or outside) the progress bar:

Step 1) Add HTML:

Example

<div id="myProgress">
  <div id="myBar">10%</div>
</div>
Step 2) Add CSS:

Example

#myBar {
  width: 10%;
  height: 30px;
  background-color: #04AA6D;
  text-align: center; /* To center it horizontally (if you want) */
  line-height: 30px; /* To center it vertically */
  color: white;
}
Try it Yourself »
Step 3) Add JavaScript:

If you want to dynamically update the text inside the label to the same value of the width of the progress bar, add the following:

Example

var i = 0;
function move() {
  if (i == 0) {
    i = 1;
    var elem = document.getElementById("myBar");
    var width = 10;
    var id = setInterval(frame, 10);
    function frame() {
      if (width >= 100) {
        clearInterval(id);
        i = 0;
      } else {
        width++;
        elem.style.width = width + "%";
        elem.innerHTML = width + "%";
      }
    }
  }
}
Try it Yourself »

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