Imsanity vs lazysizes (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
VS
VS
Quick Verdict
As of April 2026, lazysizes has a higher user rating (5/5 from 6 reviews) while Imsanity leads in active installations (200K+ vs 700). Both are free WordPress plugins. Imsanity has accumulated 4.5M+ total downloads while lazysizes has 18K+.
Detailed Comparison
| Metric | Imsanity | lazysizes | |
|---|---|---|---|
| Rating | 4.9/5 | ► | 5/5 |
| Total Reviews | 291 | ◄ | 6 |
| Active Installs | 200K+ | ◄ | 700 |
| Total Downloads | 4.5M+ | ◄ | 18K+ |
| Support Resolution | 50% | N/A | |
| Last Updated | 1 month ago | ◄ | 5 years ago |
| First Released | 2011 | 2017 | |
| Age | 15 years | 9 years | |
| WP Requires | 6.6+ | 3.9+ | |
| PHP Requires | 7.4+ | 5.6+ | |
| Business Model | Free | Free | |
| Latest Version | 2.9.0 | 1.3.3 |
Rating
4.9/5Imsanity
►lazysizes5/5
Total Reviews
291Imsanity
◄lazysizes6
Active Installs
200K+Imsanity
◄lazysizes700
Total Downloads
4.5M+Imsanity
◄lazysizes18K+
Support Resolution
50%Imsanity
lazysizesN/A
Last Updated
1 month agoImsanity
◄lazysizes5 years ago
First Released
2011Imsanity
lazysizes2017
Age
15 yearsImsanity
lazysizes9 years
WP Requires
6.6+Imsanity
lazysizes3.9+
PHP Requires
7.4+Imsanity
lazysizes5.6+
Business Model
FreeImsanity
lazysizesFree
Latest Version
2.9.0Imsanity
lazysizes1.3.3
Rating Breakdown
Imsanity
4.9/5(291 reviews)
5
95%
4
3%
3
0%
2
1%
1
1%
lazysizes
5/5(6 reviews)
5
100%
4
0%
3
0%
2
0%
1
0%
Download Trends
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.
lazysizes Reviews
No reviews yet
Frequently Asked Questions
Is Imsanity or lazysizes more popular?
Imsanity has 200K+ active installations while lazysizes has 700. Imsanity is the more widely-used plugin as of April 2026.
Which has better ratings — Imsanity or lazysizes?
Imsanity has a 4.9/5 rating from 291 reviews, while lazysizes has a 5/5 rating from 6 reviews.
Are Imsanity and lazysizes free?
Imsanity is free and lazysizes is free. Both can be downloaded from the WordPress.org plugin directory.
Which plugin has better support — Imsanity or lazysizes?
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 lazysizes was last updated 5 years ago.
Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.