Regenerate Thumbnails vs Letterbox Thumbnails (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
Regenerate Thumbnails
1.0M+ active installs
Free
Quick Verdict
As of April 2026, Letterbox Thumbnails has a higher user rating (5/5 from 2 reviews) while Regenerate Thumbnails leads in active installations (1.0M+ vs 10). Both are free WordPress plugins. Regenerate Thumbnails has accumulated 22M+ total downloads while Letterbox Thumbnails has 3.8K+.
Detailed Comparison
| Metric | Regenerate Thumbnails | Letterbox Thumbnails | |
|---|---|---|---|
| Rating | 4.6/5 | ► | 5/5 |
| Total Reviews | 395 | ◄ | 2 |
| Active Installs | 1.0M+ | ◄ | 10 |
| Total Downloads | 22M+ | ◄ | 3.8K+ |
| Support Resolution | N/A | N/A | |
| Last Updated | 7 months ago | ◄ | 6 years ago |
| First Released | 2008 | 2013 | |
| Age | 18 years | 13 years | |
| WP Requires | 4.7+ | 4.5.0+ | |
| PHP Requires | 5.2.4+ | false+ | |
| Business Model | Free | Free | |
| Latest Version | 3.1.6 | 2.0.1 |
Rating Breakdown
Regenerate Thumbnails
Letterbox Thumbnails
Download Trends
Recent Reviews
Regenerate Thumbnails Reviews
Works Pretty Well
Used it to fix image sizes after changing my theme. Did the job without much hassle. Took some time but worked fine. Pretty useful plugin overall. tnx to the devs for keeping it simple.
Very, very, very happy with the results
For layout and design purposes, I opted to increase the size of all my featured image thumbnails moving forward, but you guessed it, I still had to resize the previous photos. Well, this plugin handle
Screwed all the references to images in a Portrait orientation
Yea, That was stupid. Foolishly used this, still don’t know why. Screwed up all my references to images in a Portrait orientation. Luckily I was able to figure it out and with Better Search Re
Letterbox Thumbnails 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.