Amit Kumar Singh

wpoets

Aim of this plugin was to create a simple lightbox, to be used with the images on the post, it helps you add your images as you do now, it will take care of rest of the things. It works transparently without adding any extra work on your part.
For more information check out the <a href="http://amiworks.co.in/talk/akwplightbox/" title="akWPLightbox : simple lightbox for wordpress" rel="nofollow ugc">plugin homepage</a>.
Tip: To keep track of this plugin’s evolution and features, you are advised to <a href="" title="Grab Amiworks RSS Feed" rel="nofollow ugc">subscribe to the author’s feed</a>

akWPLightbox

It makes all the image in a post that are linked to larger images, to open with lightbox effect.

treeflips

Yin Zhongzhen

This minimal WordPress lightbox plugin adds high performance, responsive jQuery lightbox functionality to your images. When standard WordPress images/galleries are clicked, the background fades out into black as images display in lightbox popup. Galleries can be navigated with on-screen arrows, touchscreen swipes, or pressing arrows keys.
In order for WordPress images and galleries to be lightboxed: 
– You must select the “Media File” option when choosing where thumbnails should link. You can also select the “Custom Link” option if it links directly to an image file. This should work for any image file, even if it’s hosted on another website. 
– Enable on each post by checking “Enable lightbox” on the WP Featherlight settings. 
– You can also lightbox videos, iframes, and ajax content by adding data attributes to your content. For more details on custom content loading, check out the <a href="https://github.com/noelboss/featherlight/#usage" rel="nofollow ugc">featherlight documentation</a>.
My plugin is simply a forked version of the original <a href="https://wordpress.org/support/plugin/wp-featherlight" rel="ugc">WP Featherlight plugin</a>. Only difference is the original loads the featherlight CSS/JS on every page whereas mine only loads when you manually enable. Big thanks to Yin and Walter for contributing.
<h4>Features:</h4>
<ul>
<li>Ultra-lightweight – even more lightweight than the original WP Featherlight since the lightbox CSS/JS is not loaded automatically.</li>
<li>Manual activation – to enable lightbox functionality, simply click the checkbox in your post settings.</li>
<li>Retains WP Featherlight features – has all the same features and filters as the original WP Featherlight plugin (up to version 1.3.3)</li>
<li>Supports WEBP image format.</li>
</ul>

WP Featherlight Disabled

The most lightweight WordPress lightbox plugin...and the featherlight CSS/JS (only 7kb) is automatically disabled unless you manually enable within ea …

akWPLightbox vs WP Featherlight Disabled