Add a responsive lightbox to any or all images on your site
As of April 2026, Ultimate Lightbox is a WordPress lightbox plugin with 1.0K+ active installations and a 4/5 rating from 18 reviews. It has been downloaded 56K+ times in total. Requires WordPress 3.5.0+ and PHP false+. Available on WordPress.org since 2016. Downloads are up 21% this week. Support resolution rate: 0%. Top alternative: Firelight Lightbox.
Lightbox plugin that lets you add a lightbox to any or every image on your site simply by clicking on a checkbox on the plugin’s options page.
Works with Gutenberg, for both galleries and single images!
For those unfamiliar with lightbox functionality, it is when you click on an image and, instead of opening in a new window, that image opens up in a box that appears as an overlay above your page content. You remain on the pag…
Couldn’t get it to work. After deinstallation it did some weird things to my site?? Don’t install
A most promising plugin for enabling classes to be used to define what images to use the lightbox for.
BUT, it does not work completely. It only shows the small image and is not responsive in any way. See my post on the support forum.
I hope the developers fix this as it is (that I have fond so far) the only lightbox where you can assign a class and/or selectors.
A really powerful plugin for those who want to add an image lightbox to their website.
Lots of customization options, custom arrows, skins, custom CSS and everything you could think of.
A big BRAVO and thank you to the team for providing such a great plugin to the community.
It can take effect without linking the image to a media file
Although it is already very simple and easy to use, having a usage guide would be even better
<font _mstmutation=”1″></font>
Works well, though a bit finicky and lacking in simple features. The “class” filter doesn’t work well if you are using the block editor (as the CSS class you add to an image via Gutenberg system will assign the class not to the image, but to the entire image block, which will give you broken-image errors by targeting that class). You are better off using the CSS Selectors filter include the ‘img’ tag (eg: .lightbox1 img) so it picks up the correct element when clicking. Ultimately the plugin could consider a simple checkbox somewhere in the interface to enable the Lightbox on an image, eliminating the more complex CSS filters for people who may not have this kind of knowledge. Would also be great to instead have a way to eliminate certain classes (include everything by default, except…) rather than the opt-in method, which can be cumbersome when retrofitting a website with this plugin.
Once you have it working though, it certainly does what it says on the tin. It just took me way too long to figure out about the quirky class vs. class selector system, I feel there are definitely methods to make this more clear or easier to use.
| WordPress | 3.5.0+ requiredTested up to 6.9.4 |
| PHP | false+ required |
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.