How Regenerate Thumbnails Affects Your WordPress Speed
C
Estimated Speed Score
Measured Performance
Tested Feb 2026 · How we test
+-3 ms
TTFB Impact
+0 MB
Memory Impact
+0
DB Queries
Plugin Overview
Share This Badge
Add this performance badge to your site or README:
Performance Analysis
Performance Impact
Regenerate Thumbnails receives an estimated speed score of C. Our real benchmark tests measured the following impact when activating this plugin:
- TTFB impact: +-3 ms
- Memory impact: +0.0 MB
- Additional DB queries: +0
Overall activation impact: low. This plugin adds minimal overhead to your WordPress site.
Maintenance Status
Last updated: 2025-08-20. Requires PHP 5.2.4+. Trusted by 1.0M+ active installations.
Benchmark data measured in an isolated Docker environment (WordPress 6.8, PHP 8.3, GeneratePress). See our full methodology.
Alternatives to Regenerate Thumbnails
| Plugin | Speed Score | Active Installs |
|---|---|---|
| Elementor Website Builder – More Than Just a Page Builder | B- | 10M+ |
| Classic Editor | B- | 9M+ |
| Yoast Duplicate Post | C | 4M+ |
Frequently Asked Questions
Does Regenerate Thumbnails slow down WordPress?
Regenerate Thumbnails has an estimated speed score of C. It may noticeably affect your site speed. Consider alternatives if performance is critical.
Is Regenerate Thumbnails still maintained?
Regenerate Thumbnails was last updated on 2025-08-20. It has 1.0M+ active installations, indicating it is actively maintained and widely trusted.
What are the best alternatives to Regenerate Thumbnails?
Check our plugin reviews in the Other category for alternatives. We compare plugins side-by-side on speed, features, and user ratings to help you find the best fit.
Get WordPress Performance Tips
Plugin reviews, speed optimization guides, and error debugging — straight to your inbox.
No spam. Unsubscribe anytime. We respect your privacy.