Simple Lightbox vs Just Image Optimizer (2026)

Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.

Simple Lightbox

Simple Lightbox

4.3(236)

100K+ active installs

Free

Updated 1 month ago
View Simple Lightbox
VS
Just Image Optimizer

Just Image Optimizer

4.3(6)

20 active installs

Free

Updated 7 years ago
View Just Image Optimizer

Quick Verdict

As of April 2026, Simple Lightbox has a higher user rating (4.3/5 from 236 reviews) and leads in active installations (100K+ vs 20). Both are free WordPress plugins. Simple Lightbox has accumulated 3.0M+ total downloads while Just Image Optimizer has 3.3K+.

Detailed Comparison

Rating
4.3/5Simple Lightbox
Just Image Optimizer4.3/5
Total Reviews
236Simple Lightbox
Just Image Optimizer6
Active Installs
100K+Simple Lightbox
Just Image Optimizer20
Total Downloads
3.0M+Simple Lightbox
Just Image Optimizer3.3K+
Support Resolution
0%Simple Lightbox
Just Image OptimizerN/A
Last Updated
1 month agoSimple Lightbox
Just Image Optimizer7 years ago
First Released
2010Simple Lightbox
Just Image Optimizer2018
Age
16 yearsSimple Lightbox
Just Image Optimizer8 years
WP Requires
5.3+Simple Lightbox
Just Image Optimizer4.5+
PHP Requires
5.6.20+Simple Lightbox
Just Image Optimizerfalse+
Business Model
FreeSimple Lightbox
Just Image OptimizerFree
Latest Version
2.9.5Simple Lightbox
Just Image Optimizer1.1.3

Rating Breakdown

Simple Lightbox

4.3/5(236 reviews)
5
79%
4
4%
3
2%
2
1%
1
14%

Just Image Optimizer

4.3/5(6 reviews)
5
83%
4
0%
3
0%
2
0%
1
17%

Recent Reviews

Simple Lightbox Reviews

by Benjamin Stocker

Does not do anything

Just does not work. This topic was modified 6 months, 3 weeks ago by Benjamin Stocker.

by splinter1

Worked straight out of the box!

Couldn’t be simpler. Downloaded, installed, activated and now all my post images open in a lightbox. Brilliant!

by skylabb

Simple Yet Awesome

I like the simplicity of the plugin and it works with WP native image block. The ability to automatically group single images on a page or post and browse through them in the model box is great.

Just Image Optimizer Reviews

No reviews yet

Frequently Asked Questions

Is Simple Lightbox or Just Image Optimizer more popular?
Simple Lightbox has 100K+ active installations while Just Image Optimizer has 20. Simple Lightbox is the more widely-used plugin as of April 2026.
Which has better ratings — Simple Lightbox or Just Image Optimizer?
Simple Lightbox has a 4.3/5 rating from 236 reviews, while Just Image Optimizer has a 4.3/5 rating from 6 reviews.
Are Simple Lightbox and Just Image Optimizer free?
Simple Lightbox is free and Just Image Optimizer is free. Both can be downloaded from the WordPress.org plugin directory.
Which plugin has better support — Simple Lightbox or Just Image Optimizer?
Support resolution data is not available for all plugins. Check each plugin's WordPress.org support forum for current response quality.
Which plugin is updated more frequently?
Simple Lightbox was last updated 1 month ago and Just Image Optimizer was last updated 7 years ago.

Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.