AJAX Thumbnail Rebuild vs Smart Calendar (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
Quick Verdict
As of April 2026, AJAX Thumbnail Rebuild has a higher user rating (4.8/5 from 90 reviews) and leads in active installations (30K+ vs 20). Both are free WordPress plugins. AJAX Thumbnail Rebuild has accumulated 851K+ total downloads while Smart Calendar has 4.4K+.
Detailed Comparison
| Metric | AJAX Thumbnail Rebuild | Smart Calendar | |
|---|---|---|---|
| Rating | 4.8/5 | ◄ | 1/5 |
| Total Reviews | 90 | ◄ | 1 |
| Active Installs | 30K+ | ◄ | 20 |
| Total Downloads | 851K+ | ◄ | 4.4K+ |
| Support Resolution | N/A | N/A | |
| Last Updated | 2 years ago | ◄ | 14 years ago |
| First Released | 2009 | 2011 | |
| Age | 17 years | 15 years | |
| WP Requires | 2.8+ | 3.0+ | |
| PHP Requires | false+ | false+ | |
| Business Model | Free | Free | |
| Latest Version | 1.14 | 0.1.0 |
Rating Breakdown
AJAX Thumbnail Rebuild
Smart Calendar
Download Trends
Recent Reviews
AJAX Thumbnail Rebuild Reviews
Still Works Great!
With over 4K images on my site, it’s impossible to get “Regenerate Thumbnails” in Woocommerce to complete. This takes care of it in a couple hours without taking a break. Thank you! Running WordP
Seems to be a dead plugin
No replies to support queries for over a year so it seems like a dead plugin. hopefully you backup your site before trying this.
This should be in Core
This is a great plugin, easy to use and it should be in Core in some way or form. It’s ridiculous that Woo does automatic thumbnail regeneration, but WP Core doesn’t. Thanks for this.
Smart Calendar Reviews
No reviews yet
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Frequently Asked Questions
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Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.