Imsanity vs thumbGen (2026)

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

Imsanity

Imsanity

4.9(291)

200K+ active installs

Free

Updated 1 month ago
View Imsanity
VS
thumbGen

thumbGen

3(2)

100 active installs

Free

Updated 11 years ago
View thumbGen

Quick Verdict

As of April 2026, Imsanity has a higher user rating (4.9/5 from 291 reviews) and leads in active installations (200K+ vs 100). Both are free WordPress plugins. Imsanity has accumulated 4.5M+ total downloads while thumbGen has 12K+.

Detailed Comparison

Rating
4.9/5Imsanity
thumbGen3/5
Total Reviews
291Imsanity
thumbGen2
Active Installs
200K+Imsanity
thumbGen100
Total Downloads
4.5M+Imsanity
thumbGen12K+
Support Resolution
50%Imsanity
thumbGenN/A
Last Updated
1 month agoImsanity
thumbGen11 years ago
First Released
2011Imsanity
thumbGen2010
Age
15 yearsImsanity
thumbGen16 years
WP Requires
6.6+Imsanity
thumbGen2.9.0+
PHP Requires
7.4+Imsanity
thumbGenfalse+
Business Model
FreeImsanity
thumbGenFree
Latest Version
2.9.0Imsanity
thumbGen2.7.1

Rating Breakdown

Imsanity

4.9/5(291 reviews)
5
95%
4
3%
3
0%
2
1%
1
1%

thumbGen

3/5(2 reviews)
5
50%
4
0%
3
0%
2
0%
1
50%

Recent Reviews

Imsanity Reviews

by robertgray

It works

It just works 🙂

by edgarro

The best!

Very, very useful.

by Topher

Perfect

This plugin does exactly what it says. It also works with WebP, so combined with Cimo you have a perfect scenario for a health media library.

thumbGen Reviews

No reviews yet

Frequently Asked Questions

Is Imsanity or thumbGen more popular?
Imsanity has 200K+ active installations while thumbGen has 100. Imsanity is the more widely-used plugin as of April 2026.
Which has better ratings — Imsanity or thumbGen?
Imsanity has a 4.9/5 rating from 291 reviews, while thumbGen has a 3/5 rating from 2 reviews.
Are Imsanity and thumbGen free?
Imsanity is free and thumbGen is free. Both can be downloaded from the WordPress.org plugin directory.
Which plugin has better support — Imsanity or thumbGen?
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?
Imsanity was last updated 1 month ago and thumbGen was last updated 11 years ago.

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