This plugin creates a function named thumbGen() that allows to show any image in the specified size (plus many other things).
As of April 2026, thumbGen is a WordPress image plugin with 100 active installations and a 3/5 rating from 2 reviews. It has been downloaded 12K+ times in total. Requires WordPress 2.9.0+ and PHP false+. Available on WordPress.org since 2010. Last updated 11 years ago — may have compatibility concerns. Top alternative: Firelight Lightbox.
This plugin is made for developers.
It creates a function named thumbGen() that allows to show any image in the specified size. Additionally you can specify values like crop, center, rotation and effects.
It saves all generated thumbs in a cache folder, so it won’t overload your server at all.
To use this function you just need to use this line code:
<?php thumbGen(image,width,height,additional_parameters); ?>
[image:] the URL of the original image you need to create a thumbnail from (needed).
[width:] the width you need for the generated thumbnail (default=0 – if not specified it gets the
proportional value from the specified height).
[height:] the height you need for the generated thumbnail (default=0 – if not specified it gets the proportional value from…
| WordPress | 2.9.0+ requiredTested up to 4.1.42 |
| PHP | false+ required |
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.