Image Optimizer – Optimize Images and… vs Robin Image Optimizer – Unlimited Image… (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
Robin Image Optimizer – Unlimited Image…
100K+ active installs
Free
Quick Verdict
As of April 2026, Robin Image Optimizer – Unlimited Image… has a higher user rating (4.4/5 from 125 reviews) while Image Optimizer – Optimize Images and… leads in active installations (1.0M+ vs 100K+). Both are free WordPress plugins. Image Optimizer – Optimize Images and… has accumulated 13M+ total downloads while Robin Image Optimizer – Unlimited Image… has 2.1M+.
Detailed Comparison
| Metric | Image Optimizer – Optimize Images and… | Robin Image Optimizer – Unlimited Image… | |
|---|---|---|---|
| Rating | 1.6/5 | ► | 4.4/5 |
| Total Reviews | 72 | ► | 125 |
| Active Installs | 1.0M+ | ◄ | 100K+ |
| Total Downloads | 13M+ | ◄ | 2.1M+ |
| Support Resolution | N/A | 100% | |
| Last Updated | 1 month ago | ► | 3 weeks ago |
| First Released | 2024 | 2018 | |
| Age | 2 years | 8 years | |
| WP Requires | 6.6+ | 5.6+ | |
| PHP Requires | 7.4+ | 7.4+ | |
| Business Model | Free | Free | |
| Latest Version | 1.7.3 | 2.0.4 |
Rating Breakdown
Image Optimizer – Optimize Images and…
Robin Image Optimizer – Unlimited Image…
Download Trends
Over the past 30 days, Image Optimizer – Optimize Images and… averaged approximately 9,601 daily downloads while Robin Image Optimizer – Unlimited Image… averaged 1,567.
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.
Robin Image Optimizer – Unlimited Image… Reviews
Well done
It would be nice to add disabling scheduled launch. Manual only
Best Plugin
The best plugin for image optimization. But after the latest update, there’s a delay when converting Image Features to webp. Although it might just be my feeling. BTW, thanks.
Utter Waste Of Time
Your “fix” lasted for about three minutes. I have since then waited to give you time to migrate your servers. I have uninstalled and reinstalled the plugin several times. I have tried to get it to opt
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Frequently Asked Questions
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Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.