Widely available across major browsers

Chrome 37, Chrome Android 37, Edge 79, Firefox 98, Firefox Android 98, Opera 24, Safari 15.4, Safari iOS 15.4

Baseline since 2022

The <dialog> HTML element represents a modal or non-modal dialog box or other interactive component, such as a dismissible alert, inspector, or subwindow.

The HTML <dialog> element is used to create both modal and non-modal dialog boxes. Modal dialog boxes interrupt interaction with the rest of the page being inert, while non-modal dialog boxes allow interaction with the rest of the page.

JavaScript should be used to display the <dialog> element. Use the .showModal() method to display a modal dialog and the .show() method to display a non-modal dialog. The dialog box can be closed using the .close() method or using the dialog method when submitting a <form> that is nested within the <dialog> element. Modal dialogs can also be closed by pressing the Esc key.