gvadev

Cal24h is an online booking platform that lets you publish event calendars, appointment forms, and catalogues. This plugin embeds any Cal24h organization or event on your WordPress site with just a shortcode or block, while offering a floating button modal for persistent calls to action.
Highlights
<ul>
<li>Gutenberg block with an inspector panel to configure organization, event, language, and appearance.</li>
<li>Shortcode <code>[cal24h]</code> supporting attributes for iframe or floating-button display modes.</li>
<li>Settings page (<code>Settings → Cal24h</code>) to define default values such as organization slug, event slug, language, and colors.</li>
<li>Responsive floating button that opens a customizable modal overlay.</li>
<li>Ready-to-ship translations and language loading for both editor and front end. Included locales: ar, bn_BD, da_DK, de_DE, el, en_US, es_ES, fa_IR, fi, fr_FR, he_IL, hi_IN, id_ID, it_IT, ja, ko_KR, nb_NO, nl_NL, pa_IN, pt_BR, pt_PT, ru_RU, sv_SE, sw, tr_TR, ur, wo, zh_CN.</li>
<li>Paste-friendly slugs: you can paste a full Cal24h URL (e.g., <code>https://cal24h.com/integration/org/event</code>) into settings or shortcode attributes — the plugin extracts the correct organization/event automatically.</li>
</ul>

Cal24h

Embed the Cal24h booking experience in WordPress with a shortcode, Gutenberg block, or floating modal.

Cal24h vs Booking for Appointments and Events Calendar – Amelia