Native Accordion Generator - Online HTML & Summary

Native Accordion Generator

Build lightweight, JavaScript-free accordions with <details> and <summary>. Customize items, preview instantly, and copy clean HTML.

Items & Settings

Options

Expand first item by default

Include CSS animation snippet

Custom CSS class (applied to all details)

Generated HTML

Live Preview

FAQ / Tips

It’s an accordion built with the <details> and <summary> elements. It works without any JavaScript – browsers handle the toggle behavior natively.

All modern browsers (Chrome, Firefox, Safari, Edge) fully support it. Internet Explorer does not, but can be polyfilled.

Yes, use summary::-webkit-details-marker or list-style: none and add a custom pseudo-element (like the Font Awesome caret in the preview).

The generated code wraps content in a <div class="content"> and uses max-height transition to animate opening/closing smoothly.

Yes, native elements provide keyboard interactivity and are recognized by screen readers. Always provide meaningful summary text.

Absolutely. The generated HTML is pure, lightweight markup that can be styled further with Bootstrap utility classes or custom CSS.

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