Image Optimizer – Optimize Images and… vs WP Compress – Instant Performance &… (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
WP Compress – Instant Performance &…
10K+ active installs
Free
Quick Verdict
As of April 2026, WP Compress – Instant Performance &… has a higher user rating (4.5/5 from 152 reviews) while Image Optimizer – Optimize Images and… leads in active installations (1.0M+ vs 10K+). Both are free WordPress plugins. Image Optimizer – Optimize Images and… has accumulated 13M+ total downloads while WP Compress – Instant Performance &… has 1.1M+.
Detailed Comparison
| Metric | Image Optimizer – Optimize Images and… | WP Compress – Instant Performance &… | |
|---|---|---|---|
| Rating | 1.6/5 | ► | 4.5/5 |
| Total Reviews | 72 | ► | 152 |
| Active Installs | 1.0M+ | ◄ | 10K+ |
| Total Downloads | 13M+ | ◄ | 1.1M+ |
| Support Resolution | N/A | N/A | |
| Last Updated | 1 month ago | ► | Yesterday |
| First Released | 2024 | 2018 | |
| Age | 2 years | 8 years | |
| WP Requires | 6.6+ | 6.5+ | |
| PHP Requires | 7.4+ | 7.4+ | |
| Business Model | Free | Free | |
| Latest Version | 1.7.3 | 7.00.01 |
Rating Breakdown
Image Optimizer – Optimize Images and…
WP Compress – Instant Performance &…
Download Trends
Over the past 30 days, Image Optimizer – Optimize Images and… averaged approximately 9,601 daily downloads while WP Compress – Instant Performance &… averaged 1,502.
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.
WP Compress – Instant Performance &… Reviews
Does Not serve modern image formats for all
Does not convert .jpg to modern image formats like .webp in all environments This topic was modified 2 weeks, 3 days ago by jtohme.
Fantastic plugin & helpful support
I’ve used WP Compress for a over a month now and safely say it’s truly worthy of 10 stars if I could rate it that. Websites that previously felt like they crawled are now cruising faster than I could
Really helps our agency!
We’ve tried other performance plugins but nothing has compared with as many agency features as WP Compress. Thank you for fast speeds, unlimited websites and easy management!
More Image Optimization Worth Comparing
Top alternatives in the same category as Image Optimizer – Optimize Images and… and WP Compress – Instant Performance &…
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!
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.
Frequently Asked Questions
Is Image Optimizer – Optimize Images and… or WP Compress – Instant Performance &… more popular?
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Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.