f13dev

Each image within a post or page will become a clickable link with a popup lightbox. This does not use an off the shelf lightbox, instead a custom made 6KB jQuery lightbox helping to reduce overhead on your site without compormising features.
This lightbox is fully acessible via keyboard only input, meets and exceeds WCAG AA contrast requirements, includes keypress navigation (arrow keys to navigate between images and escape to close).
No configuration is required to enable the Lightbox once installed and activated on your WordPress site. Should you wish to exclude an image from the lightbox, simply add the class “no-lightbox” to the image.
<a href="https://f13.dev/wordpress-plugin-lightbox/" rel="nofollow ugc">Read more about F13 Lightbox</a>
[https://f13.dev/wp-content/uploads/2021/10/f13-lightbox-example.png Example of F13 Lightbox]

F13 Lightbox

Add a lightbox for any image within a post or page, includes accessibility features.

WeDOK

WePOP is a lightweight, jQuery-free image popup plugin for WordPress. 
It is designed for long-term stability, simplicity, and compatibility — even as WordPress or jQuery evolves. 
Built entirely with pure JavaScript, it works across all modern themes and requires no shortcodes or external libraries. 
Now supports mobile swipe gestures for navigating popup images.
Unlike complex popup plugins with unnecessary features, WePOP was developed by a seasoned creator at WeDOK, a web studio with years of real-world client work. 
WePOP focuses on just the essential features needed for modern websites — fast, clean image popups with easy configuration.
<h3>⚙️ Show Alt Text</h3>
Display the image’s alt attribute below the popup image as a caption. 
This improves accessibility and allows for simple descriptions without needing custom fields or captions.
<h3>⚙️ Popup Mode</h3>
You can choose how image links are grouped into popup viewers using the Popup Mode setting:
<ul>
<li>
Gallery Blocks Grouping Mode 
Only images inside WordPress Gallery blocks are grouped into popup slideshows. 
If your post includes multiple Gallery blocks, each one will be treated as a separate group. 
Other images open individually without navigation.
</li>
<li>
All Images Grouping Mode 
All image links in the post are grouped into a single popup viewer with navigation arrows, 
regardless of whether they are in gallery blocks or standalone.
</li>
<li>
No Grouping Mode 
All images open in their own individual popup windows with no grouping or navigation arrows.
</li>
</ul>
<h3>⚙️ Language</h3>
WePOP supports a multilingual interface. You can select your preferred admin language from the plugin settings.
<ul>
<li>🇯🇵 Japanese (ja_JP) </li>
<li>🇺🇸 English (en) </li>
<li>🇪🇸 Spanish (es) </li>
<li>🇫🇷 French (fr) </li>
<li>🇩🇪 German (de) </li>
<li>🇨🇳 Simplified Chinese (zh_CN) </li>
<li>🇮🇹 Italian </li>
<li>🇰🇷 Korean </li>
<li>🇧🇷 Portuguese (Brazil)</li>
</ul>
WePOP is ideal for developers, bloggers, and creators who need a fast and reliable image popup tool — 
without the bloat or complexity of traditional lightbox plugins.

WePOP

WePOP is a lightweight image popup plugin for WordPress that works without jQuery or external libraries.

F13 Lightbox vs WePOP