10 Best ONet Regenerate Thumbnails Alternatives in 2026
Updated September 7, 2026 · Ranked by how closely each plugin matches, from WordPress.org data · How this works
ONet Regenerate Thumbnails has 1,000+ 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 ONet 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 30 times the installs, last updated 3 days ago.
- 2
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 8 times the installs, last updated June 14, 2026.
- 3
4.0 (47) 2,000+ active installsAllows you to easily upgrade for testing the next versions of WordPress.
Shares the advanced tag on WordPress.org. About 2 times the installs, last updated 25 days ago.
- 4
Advanced Rich Text Tools for Gutenberg
4.8 (20) 3,000+ active installsAdditional tools for rich text fields in Gutenberg.
Shares the advanced tag on WordPress.org. About 3 times the installs, no update since February 27, 2019.
- 5
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 tag on WordPress.org. About 7 times the installs, no update since October 5, 2023.
- 6
4.8 (63) 10,000+ active installsMakes video thumbnails, allows resolution switching, and embeds responsive self-hosted videos and galleries.
Shares the thumbnail tag on WordPress.org. About 10 times the installs, last updated 14 days ago.
- 7
Generate Images (AI) – Magic Post Thumbnail
4.3 (25) 5,000+ active installsGenerate featured images from Bing, GPT Image, Unsplash and more. Automatic, bulk or Gutenberg — based on your post title.
Shares the thumbnail tag on WordPress.org. About 5 times the installs, last updated 14 days ago.
- 8
4.8 (22) 3,000+ active installsEnables upscaling of thumbnails for small media attachments
Shares the thumbnail tag on WordPress.org. About 3 times the installs, no update since November 28, 2017.
- 9
4.1 (56) 8,000+ active installsPlugin allows you to manually crop all the image sizes registered in your WordPress theme (in particular featured image).
Shares the thumbnail tag on WordPress.org. About 8 times the installs, last updated 25 days ago.
- 10
5.0 (23) 2,000+ active installsAdd the featured image into your RSS feed (in the media:content). Works nicely with Mailchimp (|RSSITEM:IMAGE|). Light and simple, no options, no clut …
Shares the thumbnail tag on WordPress.org. About 2 times the installs, no update since October 12, 2023.
Switching from ONet Regenerate Thumbnails: common questions
What is the best alternative to ONet 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 ONet Regenerate Thumbnails alternative has the most users?
AJAX Thumbnail Rebuild, with 30,000+ active installs reported by WordPress.org.
Which ONet Regenerate Thumbnails alternative is rated highest?
AJAX Thumbnail Rebuild, rated 4.8 out of 5 by 90 reviewers. Only plugins with at least 50 reviews are counted.
Are these ONet 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 ONet 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 ONet 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 ONet Regenerate Thumbnails by the data we track, and AJAX Thumbnail Rebuild has the widest reach with 30,000+ active installs. AJAX Thumbnail Rebuild shipped the most recent release, on September 4, 2026. The list is rebuilt every day from WordPress.org, so a plugin that stops being maintained drops out on its own.
Weekly · free
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.