Silkalns

Seamlessly integrates FancyBox into your blog: Upload, activate, and you’re done. Additional configuration optional.
You can easily customize almost anything you can think about fancybox lightbox: the border, margin width and color, zoom speed, animation type, close button position, overlay color and opacity and even more advanced option like several options to group images into galleries, and more…
By default, the plugin will use jQuery to apply FancyBox to ANY thumbnails that link directly to an image. This includes posts, the sidebar, etc, so you can activate it and it will be applied automatically.
<h4>Further Reading</h4>
This plugin is developed and maintained by Colorlib. Which is well know for their free <a href="https://colorlib.com/wp/themes/" rel="nofollow ugc"></a>WordPress themes. However, now they are looking to extend their presence in plugin development and believe that FancyBox lightbox is a great way to start.
If you are new to WordPress and want to lear more we have got you covered. Colorlib will teach you have to <a href="https://colorlib.com/" rel="nofollow ugc">start a blog</a> or <a href="https://colorlib.com/wp/how-to-make-a-website/" rel="nofollow ugc">create a website</a> and much more. If you are already familiar with WordPress you likely want to learn how to make it faster and more reliable. That’s when you want to look into hosting and more specifically <a href="http://colorlib.com/wp/wordpress-hosting" rel="nofollow ugc">WordPress hosting</a>.
If you enjoy using FancyBox lightbox for WordPress please leave a <a href="https://wordpress.org/support/plugin/fancybox-for-wordpress/reviews/?filter=5" rel="ugc">positive feedback</a>. We are committed to make it the best lightbox plugin for WordPress.

FancyBox for WordPress

Seamlessly integrates FancyBox lightbox into your WordPress blog: Upload, activate, and you're done. Additional configuration optional.

Arno Welzel

This plugin integrates PhotoSwipe to WordPress. All linked images in a post or page will be displayed using PhotoSwipe, regardless if they are part of a gallery or single images.
More about the original version of PhotoSwipe see here: <a href="http://photoswipe.com" rel="nofollow ugc">http://photoswipe.com</a>
You can also display EXIF data from supported image types.
As of version 4.0.0 this plugin requires at least WordPress 5.3 and PHP 7.0. Older PHP version will cause problems. In this case you have to upgrade your PHP version or ask your hoster to do so. Please note that WordPress itself also recommends at least PHP 7.4 – see <a href="https://wordpress.org/about/requirements/" rel="ugc">https://wordpress.org/about/requirements/</a>.
Please keep in mind: not the visible thumbnail is relevant, but only the image link. Images should always be linked to the file and not to the attachment page. Since version 5.6.1 there is an option to fix attachment links which can be enabled if needed – however this may slow down your website since then all links on a page will be checked if they are attachment links.

Lightbox with PhotoSwipe

Amazing lightbox plugin

Integration of PhotoSwipe (http://photoswipe.com) for WordPress.

FancyBox for WordPress vs Lightbox with PhotoSwipe