HTML Dialog Generator

Configure a native HTML dialog — title, body, close button, action footer — and get the complete markup with the JavaScript snippet to open it.

Last updated: May 21, 2026

Dialog title

Body content

Class

Show close (✕) button in headerShow footer with action buttons

Confirm button text

Cancel button text

Generated HTML

<dialog id="my-dialog">
  <header>
    <h2>Dialog Title</h2>
    <button type="button" onclick="this.closest('dialog').close()">✕</button>
  </header>
  <p>This is the dialog content. Use JavaScript to open it with dialogElement.showModal().</p>
  <footer>
    <button type="button" onclick="this.closest('dialog').close()">Cancel</button>
    <button type="button">Confirm</button>
  </footer>
</dialog>

<!-- Open as modal: -->
<button onclick="document.getElementById('my-dialog').showModal()">Open Dialog</button>

Preview

Client-Side Processing

Input Data Stays on Device

Instant Local Execution

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What is HTML Dialog Generator?

The HTML `<dialog>` element provides a native browser modal or non-modal dialog without any JavaScript framework or library. Calling `dialogElement.showModal()` opens it as a modal (with a backdrop that blocks interaction with the rest of the page); `dialogElement.show()` opens it as a non-modal popup.

Dialogs can be closed with `dialogElement.close()`, the Escape key (modal mode), or a `<form method="dialog">` inside the dialog. The `::backdrop` pseudo-element lets you style the overlay.

How to Use HTML Dialog Generator

Enter the dialog title and body text

Toggle the close button and footer action buttons

Set id and class if needed

Copy the generated HTML and paste it into your page

Use the included button snippet to open the dialog with showModal()

Common Use Cases

Developers building confirmation dialogs (delete, logout, purchase).
Teams replacing third-party modal libraries with native HTML dialogs.
Developers creating alert or notice dialogs that require user acknowledgement.

Example Input and Output

A confirmation dialog with cancel and confirm buttons.

Configuration

Title: Confirm Delete
Body: Are you sure you want to delete this item?
Footer: Cancel + Delete

HTML output

<dialog id="my-dialog">
  <header>...</header>
  <p>Are you sure?</p>
  <footer>...</footer>
</dialog>

Privacy

All HTML generation runs in your browser. No data is sent to any server.

Frequently Asked Questions

What is the difference between show() and showModal()?

show() opens the dialog as a non-modal popup — the user can still interact with the rest of the page. showModal() opens it as a modal with a backdrop that blocks all interaction behind it and traps keyboard focus inside the dialog.

How do I close a dialog with a form?

Add <form method="dialog"> inside the dialog. Any submit button inside this form will close the dialog when clicked, and its value is returned via dialog.returnValue.

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