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AJAX Thumbnail Rebuild

by junkcoder · Performance

Rebuild your media library one image at a time, without script timeouts - and optimise, replace, or write WebP and AVIF copies of your images.

How scoring works →
90 Health · A
Maintenance 100/100
Rating quality 93/100
Support 70/100

90 health vs 67 average across 1,075 Performance plugins

Directory ranking optimization

How it's scored →

How well this listing is tuned to rank in WordPress.org search, on the factors an owner controls. Not popularity, optimization.

83 / 100

Well optimized

Biggest win: Support resolution

Update recency 100/100
WP compatibility 100/100
Rating quality 91/100
Listing tuning 100/100
Support resolution 0/100

To rank higher: Mark more forum threads resolved — the resolved ratio feeds the ranking.

Get the full rank-higher report →

Daily downloads

Since 2022-10-05 · 1,425 days · wp.org + Plugin Pulse archive

+347% vs prior 30d
0Downloads · Aug 26

30-day downloads

Rolling 30-day volume · peaks are release surges

10.4K

now · peak 21.5K

10.8K30d downloads · Aug 26

Directory rank vs rivals

wp.org popularity rank over time · higher is better · when a rival's line climbs above yours, they've overtaken you

AJAX Thumbnail Rebui · #1036 you ImageMagick Engine · #647 Conditionally displa · #1004 PNG to JPG · #2184

Rating trend

Star average over time · dips mark rough releases

4.8Stars · Aug 26

Update activity

How busy the existing users are, measured as downloads in the last 30 days for every 1,000 active sites. A spike means a new release everyone's pulling; a long, slow decline means an aging user base that updates less.

361per 1k installs · Aug 26

Release cadence

No release in a year
from wp.org release tags

How often this plugin actually ships. A steady rhythm is the maintenance signal a single "last updated" date can't show.

0

releases in the last 12 months

3.3y ago

latest release · v1.14

17

tagged releases on record

Recent releases

1.14 · 3.3y ago1.13 · 8.0y ago1.2.2 · 8.0y ago1.2.1 · 8.9y ago1.2 · 8.9y ago1.12 · 12.3y ago1.11 · 12.4y ago1.10 · 12.4y ago1.09 · 12.9y ago1.08 · 13.6y ago1.07 · 14.2y ago1.06 · 14.8y ago1.05 · 15.1y ago1.04 · 15.2y ago

What its installed base runs

via wordpress.org

Share of active installs on each version of this plugin. Green is the current release; a big slice on older versions is a user base that has stopped updating.

v1.14 71%
v1.13 19%
v1.12 8.2%
Older / other versions 2.4%

Estimated active installs

The public count shows “30K+”. Our estimate pins where the real number sits.

tracked estimate
30K–40K ≈39K

Refined from the date this plugin crossed into its current band.

Install history · since 2015-03-16 · 1,485 observations

30KInstalls · Aug 26

Estimated value

What this plugin might earn a year, and what it might sell for. Modeled from public signals; we don't see anyone's books.

Est. annual revenue

N/A

Est. acquisition value

N/A

No paid tier is visible, so we don't put a figure on revenue or sale value: that would be guessing. The install base is a real asset to an acquirer, just not one public data lets us price. The recent download trend is too spiky to read.

Details

Version
2.0.0
Last updated
5d ago
Added
2009-10-12 · 16 yrs old
Requires WP
5.6
Tested up to
7.1
Requires PHP
7.4

Recent reviews

All reviews on wp.org ↗
  1. cr8n
    10mo ago

    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 WordPress 6.8.3 & PHP 8.4

    Read on wp.org ↗
  2. mmk175
    2.3y ago

    No replies to support queries for over a year so it seems like a dead plugin. hopefully you backup your site before trying this.

    Read on wp.org ↗
  3. Jasper
    2.5y ago

    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.

    Read on wp.org ↗
  4. Fred
    4.3y ago

    It did what Regenerate Thumbnails can’t.

    Read on wp.org ↗
  5. 802jan
    4.8y ago

    Wordfence is giving ‘abandoned’ warnings since there have been no updates in three years. Excellent plugin though.

    Read on wp.org ↗
  6. Wabbitt83
    5.5y ago

    Nice plugin, very useful, efficiency top. Make it automatic for every new photo or drawing in medias, it will be giant !!! 😉 This topic was modified 5 years, 4 months ago by Wabbitt83.

    Read on wp.org ↗
  7. digitalrenewal
    7.0y ago

    My site has 7600 images, no other regeneration plugin would come close to finishing the process. This did the trick! Even though it hasn’t been tested with the latest three updates of WordPress, it ran perfectly fine. I hope the developer keeps this one alive. It saved me! No other plugin would work in this situation. Word of caution as stated in the description. Do not close the window, or allow your computer to hibernate. If you have a lot of images, leave the window open, turn off sleep mode in your control panel settings and play movies so images dont burn into your screen. Thank you so much! I can’t stand bloat on my server. This really did its job. and it was a big job.

    Read on wp.org ↗
  8. esmodev
    7.4y ago

    This plugin works great, big thanks to the developer.

    Read on wp.org ↗

Latest updates

via wp.org changelog

Recent releases and news for this plugin

  1. Version 1.14 Fix security issues (props @patchstack) Fix Github link (props @Julix91 @garretthyder) Fix crop-settings for additional sizes (props @karlkowald) 1.14
  2. Version 1.2.2 Compatibility with PHP 7.2 (props @thomas-gordon) Implemented throttling and retries for image regeneration (props @da2x) 1.2.2
  3. Version 1.2.1 NEW: Allow custom crop areas, read more 1.2.1
  4. Version 1.2 Compatibility with PHP7 1.2
  5. Version 1.12 FIX: An issue where rebuilding thumbnails in the media gallery would not work 1.12
  6. Version 1.11 FIX: An issue where the plugin would sometimes break the media gallery. 1.11

Known vulnerabilities

via Wordfence Intelligence

1 disclosed vulnerability on record for this plugin, fixed in the current version. Sites on older versions stay exposed until they update.

  1. 2023-04-28 CVE-2022-47604 Missing Authorization Affects <= 1.13 Patched in 1.14

Vulnerability records provided by Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. License and terms.

CVE records: Copyright 1999-2026 The MITRE Corporation. CVE terms of use.

Behavioral tests

via WP Hive

Automated install-time checks, tested on PHP 8.1.12 · WP 6.2

Low memory footprint
Low page-speed impact
Runs on latest PHP + WP
No PHP errors
No JS errors
Activates cleanly
No resource errors
No external HTTP errors
Optimized database use
Frequently updated

Languages

via translate.wordpress.org

Translated into 35 languages, 14 at 90% or more

Dutch 100%
English (Australia) 100%
English (Canada) 100%
English (New Zealand) 100%
English (South Africa) 100%
English (UK) 100%
Portuguese (Brazil) 100%
Spanish (Argentina) 100%
Spanish (Chile) 100%
Spanish (Colombia) 100%
Spanish (Mexico) 100%
Spanish (Spain) 100%
Spanish (Venezuela) 100%
Swedish 90%
Estonian 85%
German 80%
Slovak 70%
French (France) 10%
Romanian 10%
Russian 10%
Assamese 5%
Azerbaijani 5%
Croatian 5%
Czech 5%

Plus 11 more locales with partial translations.

Growth timeline

Install-tier crossings we have observed, and how long each tier took to outgrow

  1. 2025-07-13 40K+ → 30K+ down after 392 days in tier
  2. 2024-06-16 50K+ → 40K+ down after 435 days in tier
  3. 2023-04-08 60K+ → 50K+ down

Competes with

The plugins that solve the same job, ranked by shared tags then reach, closest match first. The letter on the right is each plugin's health grade (A best, F worst).

Compare head to head →

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Preview card ↗

AJAX Thumbnail Rebuild: 30K+ active installs, 4.8★ (90 reviews). Plugin Pulse (WP Mayor), as of 2026-08-29. https://plugins.wpmayor.com/plugin/ajax-thumbnail-rebuild