Imsanity vs OTF Regenerate Thumbnails (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
OTF Regenerate Thumbnails
4.0K+ active installs
Free
Quick Verdict
As of April 2026, Imsanity has a higher user rating (4.9/5 from 291 reviews) and leads in active installations (200K+ vs 4.0K+). Both are free WordPress plugins. Imsanity has accumulated 4.5M+ total downloads while OTF Regenerate Thumbnails has 146K+.
Detailed Comparison
| Metric | Imsanity | OTF Regenerate Thumbnails | |
|---|---|---|---|
| Rating | 4.9/5 | ◄ | 4.6/5 |
| Total Reviews | 291 | ◄ | 19 |
| Active Installs | 200K+ | ◄ | 4.0K+ |
| Total Downloads | 4.5M+ | ◄ | 146K+ |
| Support Resolution | 50% | N/A | |
| Last Updated | 1 month ago | ◄ | 8 years ago |
| First Released | 2011 | 2015 | |
| Age | 15 years | 11 years | |
| WP Requires | 6.6+ | 3.8+ | |
| PHP Requires | 7.4+ | false+ | |
| Business Model | Free | Free | |
| Latest Version | 2.9.0 | 0.3 |
Rating Breakdown
Imsanity
OTF Regenerate Thumbnails
Download Trends
Over the past 30 days, Imsanity averaged approximately 969 daily downloads while OTF Regenerate Thumbnails averaged 6.
Recent Reviews
Imsanity Reviews
It works
It just works 🙂
The best!
Very, very useful.
Perfect
This plugin does exactly what it says. It also works with WebP, so combined with Cimo you have a perfect scenario for a health media library.
OTF Regenerate Thumbnails Reviews
must-have for theme/plugins development.
just works.
Such a shame it’s only compatible up to: 4.1.13
I would love to use it…
Great Plugin to Manage Thumbnails
This plugin resizes the thumbnails properly when wordpress theme does not.
More Resize Worth Comparing
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Frequently Asked Questions
Is Imsanity or OTF Regenerate Thumbnails more popular?
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Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.