Imsanity vs lazysizes (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
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 Breakdown
Imsanity
lazysizes
Download Trends
Recent Reviews
Imsanity Reviews
It works
It just works 🙂
The best!
Very, very useful.
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
More Plugins Worth Comparing
Top alternatives in the same category as Imsanity and lazysizes
Formerly Easy Fancybox. The most popular WordPress lightbox plugin. Simple, fast, and responsive. Opens images, videos, PDFs, and custom popups.
Adds an image or icon in the menu items. You can choose the position of the image (after, before, above, below) or even hide the menu item title.
The most popular lightbox plugin and responsive gallery builder for WordPress.
reSmush.it is the FREE image compressor and optimizer plugin - use it to optimize your images and improve the SEO and performance of your website.
A simple image widget that uses the native WordPress media manager to add image widgets to your site.
Frequently Asked Questions
Is Imsanity or lazysizes more popular?
Which has better ratings — Imsanity or lazysizes?
Are Imsanity and lazysizes free?
Which plugin has better support — Imsanity or lazysizes?
Which plugin is updated more frequently?
Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.