This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for the proper prefixes to use in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the spec changes.


The HTML <dialog> element represents a dialog box or other interactive component, such as an inspector or window. <form> elements can be integrated within a dialog by specifying them with the attribute method="dialog". When such a form is submitted, the dialog is closed with a returnValue attribute set to the value of the submit button used.

The ::backdrop CSS pseudo-element can be used to style behind a <dialog> element, for example to dim inaccessible content whilst a modal dialog is active.


This element includes the global attributes. The tabindex attribute must not be used on the <dialog> element.

Indicates that the dialog is active and available for interaction. When the open attribute is not set, it shouldn't be shown to the user.


Example 1

<dialog open>
  <p>Greetings, one and all!</p>

Example 2

<!-- Simple pop-up dialog box, containing a form -->
<dialog id="favDialog">
  <form method="dialog">
      <p><label for="favAnimal">Favorite animal:</label>
      <select id="favAnimal" name="favAnimal">
        <option>Brine shrimp</option>
        <option>Red panda</option>
        <option>Spider monkey</option>
      <button id="cancel" type="reset">Cancel</button>
      <button type="submit">Confirm</button>

  <button id="updateDetails">Update details</button>

  (function() {
    var updateButton = document.getElementById('updateDetails');
    var cancelButton = document.getElementById('cancel');
    var favDialog = document.getElementById('favDialog');

    // Update button opens a modal dialog
    updateButton.addEventListener('click', function() {

    // Form cancel button closes the dialog box
    cancelButton.addEventListener('click', function() {



Specification Status Comment
WHATWG HTML Living Standard
The definition of '<dialog>' in that specification.
Living Standard  
The definition of '<dialog>' in that specification.
Working Draft  

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support 37 Not supported bug 840640 Not supported 24 Not supported
Anchor points Not supported Not supported Not supported Not supported Not supported
Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support Android Browser 37 Not supported Not supported Not supported Not supported
Anchor points Not supported Not supported Not supported Not supported Not supported

See also

Document Tags and Contributors

Contributors to this page: dhodder, teoli, jsx, Akilan_Arasu, ght
Last updated by: ght,