ShortPixel Adaptive Images – WebP… vs Cimo – Free Instant Image Optimizer &… (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
ShortPixel Adaptive Images – WebP…
10K+ active installs
Free
Cimo – Free Instant Image Optimizer &…
6.0K+ active installs
Free
Quick Verdict
As of April 2026, ShortPixel Adaptive Images – WebP… has a higher user rating (4.8/5 from 143 reviews) and leads in active installations (10K+ vs 6.0K+). Both are free WordPress plugins. ShortPixel Adaptive Images – WebP… has accumulated 1.5M+ total downloads while Cimo – Free Instant Image Optimizer &… has 25K+. Cimo – Free Instant Image Optimizer &… has a higher support resolution rate (100% vs 100%).
Detailed Comparison
| Metric | ShortPixel Adaptive Images – WebP… | Cimo – Free Instant Image Optimizer &… | |
|---|---|---|---|
| Rating | 4.8/5 | 4.8/5 | |
| Total Reviews | 143 | ◄ | 12 |
| Active Installs | 10K+ | ◄ | 6.0K+ |
| Total Downloads | 1.5M+ | ◄ | 25K+ |
| Support Resolution | 100% | 100% | |
| Last Updated | 2 weeks ago | ► | 2 days ago |
| First Released | 2018 | 2025 | |
| Age | 8 years | 1 year | |
| WP Requires | 4.7+ | 6.7.5+ | |
| PHP Requires | 5.6.40+ | 8.0+ | |
| Business Model | Free | Free | |
| Latest Version | 3.11.2 | 1.3.1 |
Rating Breakdown
ShortPixel Adaptive Images – WebP…
Cimo – Free Instant Image Optimizer &…
Download Trends
Over the past 30 days, ShortPixel Adaptive Images – WebP… averaged approximately 391 daily downloads while Cimo – Free Instant Image Optimizer &… averaged 330.
Recent Reviews
ShortPixel Adaptive Images – WebP… Reviews
Shortpixel AI, a hassle free plugin that greatly improves PageSpeed score.
As the title says, Pagespeed Insights gave a score of 92 on mobile and 99 to 100 on desktop with no visible loss of quality on the web page. What I also like is the very reasonable one time pricing an
Great plugin and great team!
I’ve recently added SPIO across all our WordPress sites. (I work for a NFP managing 10 of their sites.) I’m impressed by ShortPixel’s compression and performance. Adrian and the team have offered grea
Slowed my site until I deleted it and removed DB Table.
Not here to diss you guys. Your image optimiser plugin is great!! But this one, it didn’t speed up my site, but rather made it super slow on first load. Maybe my error even. BUT when I turned off plug
Cimo – Free Instant Image Optimizer &… Reviews
Works perfect!
I really like this plugin. Set and forget! Limited options in the free version, but most of the time this is perfect.
5 star because we cannot give more
Awesome plugin, directly goes to my default install list ! Thank you for the great work !
Was 5 star, now broken. Back to 1.2.0
used to work perfectly. I wish I could find older versions, as 1.2.2 no longer automatically converts images when uploaded. never should have updated. so annoying, and now looking for a new solution.
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Frequently Asked Questions
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Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.