radogado

Rado’s Native Lightbox instantly upgrades every WordPress gallery into a beautiful, full-screen lightbox carousel. Just activate and go — your existing galleries are transformed automatically, no shortcodes to learn, no settings pages to configure.
Built on <a href="https://nativecarousel.com/" rel="nofollow ugc">Native Carousel</a>, it uses the browser’s own scroll-snapping instead of heavy animation libraries. The result is buttery-smooth swiping on phones, fluid keyboard navigation on desktops, and a total footprint of roughly 13 KB — smaller than a single thumbnail image.
Why this plugin?
<ul>
<li>Zero configuration — activate it and every gallery on your site becomes a lightbox carousel. Deactivate it and galleries revert to normal. Nothing is written to your database.</li>
<li>Truly lightweight — ~13 KB total (JS + CSS). No jQuery, no frameworks, no external requests. Your PageSpeed score stays intact.</li>
<li>Works with any theme — Twenty Twenty-Five, Astra, GeneratePress, or anything else. The plugin bundles everything it needs.</li>
<li>Accessible by default — full keyboard navigation, focus trapping in the lightbox, screen-reader labels on every control, and <code>prefers-reduced-motion</code> support.</li>
<li>Native scroll-snap — hardware-accelerated, 60 fps swiping powered by the browser itself, not JavaScript animation loops.</li>
<li>Dark mode aware — the lightbox overlay adapts to the visitor’s system color scheme automatically.</li>
</ul>
Features at a glance:
<ul>
<li>Full-screen lightbox with swipe, keyboard and mouse-wheel navigation</li>
<li>Compact thumbnail index strip with scrollable overflow</li>
<li>“Thumbnails only” toggle in both the Block Editor sidebar and Classic Editor settings</li>
<li>Endless (infinite loop) navigation</li>
<li>Lazy-loaded images with low-resolution placeholder blur while loading</li>
<li>Captions and alt text fully preserved</li>
<li>Featured-image click opens the matching gallery slide on single posts</li>
<li>Editor performance guard — caps image sizes in the block editor to prevent crashes with large galleries</li>
</ul>
How it works:
The plugin intercepts gallery rendering at display time and outputs <a href="https://nativecarousel.com/" rel="nofollow ugc">Native Carousel</a> HTML markup. Your post content is never modified — the transformation is purely visual and fully reversible.
<h3>Third-party source code</h3>
This plugin bundles minified assets from Native Carousel, an open-source carousel component (GPL-2.0-or-later).
<ul>
<li>Homepage & documentation: <a href="https://nativecarousel.com/" rel="nofollow ugc">https://nativecarousel.com/</a></li>
<li>Source code repository: <a href="https://github.com/radogado/n-carousel" rel="nofollow ugc">https://github.com/radogado/n-carousel</a></li>
</ul>
The following files in <code>assets/</code> are the minified production builds:
<ul>
<li><code>n-carousel.min.js</code> — carousel runtime</li>
<li><code>n-carousel-preload.min.js</code> — image preloader</li>
<li><code>n-carousel.min.css</code> — carousel styles</li>
</ul>
The unminified, human-readable source is available in the GitHub repository linked above. No build tools are needed to work with this plugin’s own code — <code>gallery-lightbox.css</code> and the admin JavaScript files are shipped unminified and readable.
This plugin is also maintained as part of the niui theme project: 
<a href="https://gitlab.com/spacest/niui/-/tree/main/rados-native-lightbox" rel="nofollow ugc">https://gitlab.com/spacest/niui/-/tree/main/rados-native-lightbox</a>

Rado's Native Lightbox

Transforms WordPress galleries into lightweight lightbox carousels. Works with any theme — only ~13 KB.

miro.mannino

Plugin that allows you to show your Flickr photostream, photosets, galleries, group pools, or tags in your blog, with a very elegant and awesome layout.
Create a gallery with the same style of Flickr or Google+! Awesome thumbnails disposition with a justified grid, calculated by a fast javascript algorithm called <a href="http://miromannino.github.io/Justified-Gallery" title="Justified Gallery" rel="nofollow ugc">Justified Gallery</a>! You can configure the height of the rows to have a grid that can be like the justified grid of Flickr or of Google+. But, you can do more! For example you can configure the margin between the images, create rows with fixed height, or decide if you want to justify the last row or not!
You can also configure a gallery to show photos with a link to Flickr or with a Lightbox (Swipebox or Colorbox).
Always high quality thumbnails! The plugin chooses the right resolution for the images, using the “Flickr size suffixes”, no small images are resized to be bigger and no big images are resized to be smaller! You can create gallery with very large thumbnails!
Remember that this plugin is not an official Flickr® plugin, any help will be greatly appreciated.
<h4>Features:</h4>
<ul>
<li>A gallery with the same layout of Flickr or Google+, configurable as you want.</li>
<li>Fast and light. Also uses a cache to load galleries instantly.</li>
<li>You can show photos from your Flickr photostream, from a photoset, from a gallery, or from a group pool.</li>
<li>You can show all the photos that has some tags.</li>
<li>You can create multiple galleries with different settings, also in the same page.</li>
<li>Customisable image sizes, always with a justified disposition.</li>
<li>Photo titles shown when the mouse is above.</li>
<li>Decide if use a lightbox (Colorbox or Swipebox) to show the original photo, or Flickr.</li>
<li>Customisable style, you need just to change a CSS.</li>
<li>Pagination with SEO friendly URLs. Decide if you want to show the newer photos or not.</li>
<li>Available in English and Italian</li>
</ul>
<h4>Live Demo</h4>
See a Live Demo in <a href="http://miromannino.com/my-photos" rel="nofollow ugc">Miro Mannino’s Blog</a>

Flickr Justified Gallery

Just your beautiful Flickr photos. In a Justified Grid.

Rado's Native Lightbox vs Flickr Justified Gallery