welshhuw

This basic plugin enables the Magnific Popup image lightbox to work with single images within your posts and pages, gallery images using the built-in WordPress gallery and also WooCommerce product images. 
Images within a Gallery will have next and previous arrows. 
You can add an alt attribute to your image, to enable lightbox ‘captions’.
The plugin comes with a Settings page for you to choose options. All are off by default.
Thanks to Dmitry Semenov for the original script and hard work: http://dimsemenov.com/plugins/magnific-popup/
Note: This only supports images and not the full capabilities of Magnific Popup.

IW Magnific Popup

Simply put, this plugin works great but could slightly be improved :)
I would love to get in touch with the developer and submit a pull request to improve a few things...



Work as expected

A plugin to include the Magnific Popup lightbox for single & gallery images in WordPress.

taha

This WordPress Plugin adds Lightbox feature to the core Gallery block with a simple toggle button. Easily enable or disable it for any gallery block by selecting ‘media file’ under the ‘link to’ dropdown. Once selected, the Lightbox toggle will appear. It also supports custom coded galleries through a filter (check FAQ).
<a href="https://github.com/tdmrhn/dLightbox.js" rel="nofollow ugc">dLightbox.js</a> is fully responsive, supporting touch, mousewheel, keyboard, and mouse drag interactions, double click or tap/touch to zoom original image, build-in thumbnails, as well as slide counters and figcaption. With no dependency on jQuery, dLightbox.js ensures optimal viewing experiences across all devices.
Although extremely lightweight at only 2.78kb gzipped for both dLightbox.js and dLightbox.css, the plugin only loads assets into the page if there is a core Gallery block or custom selectors defined via a filter.
<h3>Features</h3>
<ul>
<li>Enable/disable with a simple toggle button for each Gallery block individually.</li>
<li>Custom coded galleries support.</li>
<li>Supports touch, mousewheel, keyboard, and mouse drag interactions.</li>
<li>Double click or tap/touch to zoom original image.</li>
<li>Lightbox thumbnails with an easy toggle button.</li>
<li>Slide counter and figcaption support.</li>
<li>jQuery-Free, lightweight at only 2.78kb gzipped for both dLightbox.js and dLightbox.css</li>
<li>Fully responsive.</li>
</ul>

Gallery Block Lightbox

Extremely lightweight yet powerful and touch-friendly, jQuery-free, Lightbox toggle button for core Gallery block and supports custom-coded galleries.

IW Magnific Popup vs Gallery Block Lightbox