ShortPixel Image Optimizer – Optimize… vs Kraken.io Image Optimizer (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
ShortPixel Image Optimizer – Optimize…
300K+ active installs
Free
Kraken.io Image Optimizer
10K+ active installs
Free
Quick Verdict
As of April 2026, ShortPixel Image Optimizer – Optimize… has a higher user rating (4.5/5 from 804 reviews) and leads in active installations (300K+ vs 10K+). Both are free WordPress plugins. ShortPixel Image Optimizer – Optimize… has accumulated 18M+ total downloads while Kraken.io Image Optimizer has 399K+.
Detailed Comparison
| Metric | ShortPixel Image Optimizer – Optimize… | Kraken.io Image Optimizer | |
|---|---|---|---|
| Rating | 4.5/5 | 4.5/5 | |
| Total Reviews | 804 | ◄ | 119 |
| Active Installs | 300K+ | ◄ | 10K+ |
| Total Downloads | 18M+ | ◄ | 399K+ |
| Support Resolution | 100% | N/A | |
| Last Updated | 1 week ago | ◄ | 1 month ago |
| First Released | 2014 | 2014 | |
| Age | 12 years | 12 years | |
| WP Requires | 4.8.0+ | 4.9+ | |
| PHP Requires | 7.4+ | 5.6+ | |
| Business Model | Free | Free | |
| Latest Version | 6.4.4 | 2.7.0 |
Rating Breakdown
ShortPixel Image Optimizer – Optimize…
Kraken.io Image Optimizer
Download Trends
Over the past 30 days, ShortPixel Image Optimizer – Optimize… averaged approximately 6,617 daily downloads while Kraken.io Image Optimizer averaged 208.
Recent Reviews
ShortPixel Image Optimizer – Optimize… Reviews
Excellent plugin
Image compression is excellent. Easy to use & affordable. AI SEO for image fields is brilliant!!! Saved me many hours. No need for support (so far)… and that’s how you want it… ie. works out
great plugin!
works great and the support is great too!
Excelente Herramienta para wordpress
Una excelente herramienta totalmente recomendada This topic was modified 1 month ago by janofernandez.
Kraken.io Image Optimizer Reviews
Poor Quality
Not worth the time.
Terrible Customer Service
As others are noting here, their customer service is terrible. In fact I’d use the word “non-existent”. After signing up with an account I decided that the service was no longer what I needed and cont
Worst service I’ve encountered
Whatever you do, do not use this service. They will happily charge your credit cars, but when you try to reach them for support, they never respond. Their service is a disgrace.
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Frequently Asked Questions
Is ShortPixel Image Optimizer – Optimize… or Kraken.io Image Optimizer more popular?
Which has better ratings — ShortPixel Image Optimizer – Optimize… or Kraken.io Image Optimizer?
Are ShortPixel Image Optimizer – Optimize… and Kraken.io Image Optimizer free?
Which plugin has better support — ShortPixel Image Optimizer – Optimize… or Kraken.io Image Optimizer?
Which plugin is updated more frequently?
Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.