Modern Image Formats vs Optimus – WordPress Image Optimizer (2026)

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

Modern Image Formats

Modern Image Formats

3.3(23)

100K+ active installs

Free

Updated 2 months ago
View Modern Image Formats
VS
Optimus – WordPress Image Optimizer

Optimus – WordPress Image Optimizer

4.2(68)

30K+ active installs

Free

Updated 1 month ago
View Optimus – WordPress Image Optimizer

Quick Verdict

As of April 2026, Optimus – WordPress Image Optimizer has a higher user rating (4.2/5 from 68 reviews) while Modern Image Formats leads in active installations (100K+ vs 30K+). Both are free WordPress plugins. Modern Image Formats has accumulated 980K+ total downloads while Optimus – WordPress Image Optimizer has 694K+.

Detailed Comparison

Rating
3.3/5Modern Image Formats
Optimus – WordPress Image Optimizer4.2/5
Total Reviews
23Modern Image Formats
Optimus – WordPress Image Optimizer68
Active Installs
100K+Modern Image Formats
Optimus – WordPress Image Optimizer30K+
Total Downloads
980K+Modern Image Formats
Optimus – WordPress Image Optimizer694K+
Support Resolution
67%Modern Image Formats
Optimus – WordPress Image OptimizerN/A
Last Updated
2 months agoModern Image Formats
Optimus – WordPress Image Optimizer1 month ago
First Released
2023Modern Image Formats
Optimus – WordPress Image Optimizer2012
Age
3 yearsModern Image Formats
Optimus – WordPress Image Optimizer14 years
WP Requires
6.6+Modern Image Formats
Optimus – WordPress Image Optimizer4.6+
PHP Requires
7.2+Modern Image Formats
Optimus – WordPress Image Optimizer5.6+
Business Model
FreeModern Image Formats
Optimus – WordPress Image OptimizerFree
Latest Version
2.6.1Modern Image Formats
Optimus – WordPress Image Optimizer1.6.3

Rating Breakdown

Modern Image Formats

3.3/5(23 reviews)
5
52%
4
4%
3
0%
2
4%
1
39%

Optimus – WordPress Image Optimizer

4.2/5(68 reviews)
5
75%
4
4%
3
1%
2
4%
1
15%

Recent Reviews

Modern Image Formats Reviews

by lacoste89

Funktioniert wie beschrieben – Heimvorteil weil von WordPress entwickelt

Ich nutze dieses Plugin auf allen neuen Webseiten, damit Bilder automatisch nach AVIF konvertiert werden. Es funktionierte bisher immer ohne Probleme, deshalb kann ich es uneingeschränkt empfehlen. Ic

by primerpizza

Doesn’t work, support not helpful

Been trying to get this thing to work but it just wont serve the generated images. Support stopped replying.

by pdjp

compression?

Good plugin, but no option to set the WebP compression value. What compression is used here?

Optimus – WordPress Image Optimizer Reviews

by alexio

Not very effective

The 100kb limit of the free version is very limiting and mostly serves like a demo. My disappointment was that even though i had the premium version and i optimized the images, google pagespeed still

by Coworking à Vannes

Fait le job

Pourquoi perdre du temps quand un outil peut vous en faire gagner… Si vous avez des images trop lourdes qui peuvent ralentir votre site, c’est l’outil idéal. This topic was modified 7 years, 2

by Panos Sakalakis

You should purchase this plugin!

A simple, fast and easy to use plugin that has great features to offer. I’ve purchased a key for the Pro version a few days ago and converted all my pictures to webP. My blog is faster than ever. If y

Frequently Asked Questions

Is Modern Image Formats or Optimus – WordPress Image Optimizer more popular?
Modern Image Formats has 100K+ active installations while Optimus – WordPress Image Optimizer has 30K+. Modern Image Formats is the more widely-used plugin as of April 2026.
Which has better ratings — Modern Image Formats or Optimus – WordPress Image Optimizer?
Modern Image Formats has a 3.3/5 rating from 23 reviews, while Optimus – WordPress Image Optimizer has a 4.2/5 rating from 68 reviews.
Are Modern Image Formats and Optimus – WordPress Image Optimizer free?
Modern Image Formats is free and Optimus – WordPress Image Optimizer is free. Both can be downloaded from the WordPress.org plugin directory.
Which plugin has better support — Modern Image Formats or Optimus – WordPress 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?
Modern Image Formats was last updated 2 months ago and Optimus – WordPress Image Optimizer was last updated 1 month ago.

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