10 Best OTF Regenerate Thumbnails Alternatives in 2026
Updated September 7, 2026 · Ranked by how closely each plugin matches, from WordPress.org data · How this works
OTF Regenerate Thumbnails has 4,000+ active installs on WordPress.org. These 10 plugins share its category or its tags on WordPress.org, are actively maintained, and each has at least 100 active installs. They are ordered by how closely they match, not by our opinion.
The 10 closest alternatives to OTF Regenerate Thumbnails
- 1
AJAX Thumbnail Rebuild
Closest match4.8 (90) 30,000+ active installsRebuild your media library one image at a time, without script timeouts - and optimise, replace, or write WebP and AVIF copies of your images.
Shares the regenerate, thumbnail tags on WordPress.org. About 7.5 times the installs, last updated 3 days ago.
- 2
4.5 (52) 7,000+ active installsAutomatically sets the featured image to the first image uploaded into the post (any post type with thumbnail support). So easy like that...
Shares the thumbnail, thumbnails tags on WordPress.org. About 1.8 times the installs, no update since October 5, 2023.
- 3
4.8 (22) 3,000+ active installsEnables upscaling of thumbnails for small media attachments
Shares the thumbnail, thumbnails tags on WordPress.org. A similar number of installs, no update since November 28, 2017.
- 4
4.9 (32) 1,000+ active installsFix Media Library inconsistency between database and wp-content/uploads folder contents. Unused image files, broken media library entries, missing att …
Shares the thumbnail, thumbnails tags on WordPress.org. About a quarter of the installs, no update since December 18, 2018.
- 5
Perfect Images: Regenerate Thumbnails, Image Sizes, WebP & AVIF
4.8 (279) 60,000+ active installsOptimize image sizes, regenerate thumbnails, enable retina, convert to WebP/AVIF, or use cloud optimization. An essential image toolkit.
Shares the regenerate, thumbnails tags on WordPress.org. About 15 times the installs, last updated 2 days ago.
- 6
4.7 (58) 8,000+ active installsAdvanced management for images, register new sub-sizes, sub-sizes details, regenerate and cleanup files.
Shares the regenerate tag on WordPress.org. About 2 times the installs, last updated June 14, 2026.
- 7
4.4 (54) 40,000+ active installsInclude content the way YOU like in an iframe that can hide and modify elements, does auto-height, forward parameters and does many, many more...
Shares the resize tag on WordPress.org. About 10 times the installs, last updated June 2, 2026.
- 8
4.6 (22) 1,000+ active installsAutomatically resizes your images right in your browser, before uploading.
Shares the resize tag on WordPress.org. About a quarter of the installs, no update since November 28, 2017.
- 9
Cloudinary – Deliver Images and Videos at Scale
4.0 (64) 5,000+ active installsBoost the performance of your WordPress site by optimizing your images and videos with the Cloudinary WordPress Plugin. WordPress developers, content …
Shares the resize tag on WordPress.org. A similar number of installs, last updated 11 days ago.
- 10
Image Optimizer, Resizer and CDN – Sirv
4.9 (265) 1,000+ active installsServe perfectly optimized images, videos, models and 360 spins. The best WordPress & WooCommerce CDN plugin for media.
Shares the resize tag on WordPress.org. About a quarter of the installs, last updated 19 days ago.
Switching from OTF Regenerate Thumbnails: common questions
What is the best alternative to OTF Regenerate Thumbnails?
AJAX Thumbnail Rebuild is the closest match: it shares the same WordPress.org tags and has 30,000+ active installs with a 4.8 out of 5 rating.
Which OTF Regenerate Thumbnails alternative has the most users?
Perfect Images, with 60,000+ active installs reported by WordPress.org.
Which OTF Regenerate Thumbnails alternative is rated highest?
Sirv, rated 4.9 out of 5 by 265 reviewers. Only plugins with at least 50 reviews are counted.
Are these OTF Regenerate Thumbnails alternatives free?
Every plugin listed here is free to install from WordPress.org. Where WordPress.org marks a plugin as commercial, the developer also sells a paid version or add-ons, and that is shown on each plugin.
How are alternatives chosen?
Automatically, from WordPress.org data: plugins that share a category top 10 with OTF Regenerate Thumbnails score highest, then plugins that appear in the same WordPress.org rankings, then plugins with the same tags, weighted so rare tags count more than common ones. Plugins by the same author and plugins rated under 4.0 are left out.
How we choose these alternatives
Nothing on this page is picked by hand. Every day we walk the whole WordPress.org directory, then score every plugin against OTF Regenerate Thumbnails on three signals: sharing a category top 10 counts most, then appearing in the same WordPress.org rankings, then carrying the same tags, with rare tags counting for more than common ones like "wordpress". Plugins by the same author are excluded, so an author's own add-ons cannot fill the list, and so is anything rated below 4.0 or with fewer than 100 active installs. The ten highest scores are what you see, in that order. Full methodology.
The bottom line
AJAX Thumbnail Rebuild is the closest match to OTF Regenerate Thumbnails by the data we track, and Perfect Images has the widest reach with 60,000+ active installs. Perfect Images shipped the most recent release, on September 5, 2026. The list is rebuilt every day from WordPress.org, so a plugin that stops being maintained drops out on its own.
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What moved this week
One email a week, built from the same daily snapshots these rankings come from: the plugins that climbed, what launched, and one ranking worth a look.