Image Optimizer – Optimize Images and… vs PageSpeed Ninja – Cache, Minify, Defer… (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
Image Optimizer – Optimize Images and…
1.0M+ active installs
Free
PageSpeed Ninja – Cache, Minify, Defer…
6.0K+ active installs
Free
Quick Verdict
As of April 2026, PageSpeed Ninja – Cache, Minify, Defer… has a higher user rating (4.5/5 from 114 reviews) while Image Optimizer – Optimize Images and… leads in active installations (1.0M+ vs 6.0K+). Both are free WordPress plugins. Image Optimizer – Optimize Images and… has accumulated 13M+ total downloads while PageSpeed Ninja – Cache, Minify, Defer… has 705K+.
Detailed Comparison
| Metric | Image Optimizer – Optimize Images and… | PageSpeed Ninja – Cache, Minify, Defer… | |
|---|---|---|---|
| Rating | 1.6/5 | ► | 4.5/5 |
| Total Reviews | 72 | ► | 114 |
| Active Installs | 1.0M+ | ◄ | 6.0K+ |
| Total Downloads | 13M+ | ◄ | 705K+ |
| Support Resolution | N/A | N/A | |
| Last Updated | 1 month ago | ◄ | 1 year ago |
| First Released | 2024 | 2017 | |
| Age | 2 years | 9 years | |
| WP Requires | 6.6+ | 4.6+ | |
| PHP Requires | 7.4+ | 5.6+ | |
| Business Model | Free | Free | |
| Latest Version | 1.7.3 | 1.4.5 |
Rating Breakdown
Image Optimizer – Optimize Images and…
PageSpeed Ninja – Cache, Minify, Defer…
Download Trends
Over the past 30 days, Image Optimizer – Optimize Images and… averaged approximately 9,601 daily downloads while PageSpeed Ninja – Cache, Minify, Defer… averaged 20.
Recent Reviews
Image Optimizer – Optimize Images and… Reviews
Decent Optimizer
Tried it for image compression on my site. It does reduce size and helps a bit with loading. Setup was easy, too. But sometimes optimization feels a bit slow. Still ok for basic use.
ottimizzazione e conversione in webp molto buona
ottimizzazione e conversione in webp molto buona
All media optimised in one click
For now i find this plugin very good. Love Avif format, 54% space saved for my website and very Good results on PageSpeed Insights.
PageSpeed Ninja – Cache, Minify, Defer… Reviews
Horribly bad
horribly bad, you can’t change any settings until you pay a subscription! don’t waste your time
Spam footer link
The plugin is successful in terms of optimization, but it automatically added a footer link without my consent. I thought it was spam, but I realized it wasn’t. You can remove it in advanced settings.
real improvement
I was concerned about load speed for my pages and did a Google page speed and found that my desktop was around 70 and mobile around 55. I installed this package and I saw significant improvement immed
More Convert Webp Worth Comparing
Top alternatives in the same category as Image Optimizer – Optimize Images and… and PageSpeed Ninja – Cache, Minify, Defer…
Optimize images in 1‑click: compress, resize & convert to WebP/AVIF - free up to 20MB/month. Enjoy the easiest WordPress image optimizer to set up.
Compress and optimize images, enable lazy load, serve WebP & AVIF, and speed up your site with a global image CDN.
Speed up your website by using our WebP & AVIF Converter. Optimize images and serve WebP and AVIF images instead of standard formats!
Optimize images & PDFs smartly. Create and compress next-gen WebP and AVIF formats. Smart crop and resize.
Automatically optimize images: bulk compression, lazy loading, WebP/AVIF conversion. With CloudFront image CDN to boost Core Web Vitals & conversions!
AVIF & WebP converter with built-in media replacement for local image optimization.
Frequently Asked Questions
Is Image Optimizer – Optimize Images and… or PageSpeed Ninja – Cache, Minify, Defer… more popular?
Which has better ratings — Image Optimizer – Optimize Images and… or PageSpeed Ninja – Cache, Minify, Defer…?
Are Image Optimizer – Optimize Images and… and PageSpeed Ninja – Cache, Minify, Defer… free?
Which plugin has better support — Image Optimizer – Optimize Images and… or PageSpeed Ninja – Cache, Minify, Defer…?
Which plugin is updated more frequently?
Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.