Regenerate Thumbnails

regenerate-thumbnails · By Alex Mills
1M+ installs 4.6 (395) Updated 1 year ago v3.1.6 WP 4.7–6.8.9 PHP 5.2.4+

Impact score

Footprint Score across the two most representative contexts.

Homepage Score

Impact measured on the public homepage

···
—
v3.1.6 · 3 scans
Consolidated score over 90 days · 1 versions
Not enough data to publish the grade (15 scans min, currently 3).
Time
0 ms
Memory
0.0 MB
SQL
+0
Assets
0
HTTP ext.
0

Admin Score

Impact measured in the WordPress admin

···
—
v3.1.6 · 2 scans
Consolidated score over 90 days · 1 versions
Not enough data to publish the grade (15 scans min, currently 2).
Time
10 ms
Memory
0.0 MB
SQL
+0
Assets
0
HTTP ext.
0

About

Regenerate Thumbnails allows you to regenerate all thumbnail sizes for one or more images that have been uploaded to your Media Library.

This is useful for situations such as:

It also offers the ability to delete old, unused thumbnails in order to free up server space.

Read more

In February 2019 Alex Mills, the author of this plugin, passed away. He leaves behind a number of plugins which will be maintained by Automattic and members of the WordPress community. If this plugin is useful to you please consider donating to the Oregon Health and Science University. You can find more information here.

WP-CLI

If you have command line access to your server, I highly recommend using WP-CLI instead of this plugin as it’s faster (no HTTP requests overhead) and can be run inside of a screen for those with many thumbnails. For details, see the documentation of its media regenerate command.

Jetpack’s Photon Module

Jetpack is a plugin by Automattic, makers of WordPress.com. It gives your self-hosted WordPress site some of the functionality that is available to WordPress.com-hosted sites.

The Photon module makes the images on your site be served from WordPress.com’s global content delivery network (CDN) which should speed up the loading of images. Importantly though it can create thumbnails on the fly which means you’ll never need to use this plugin.

I personally use Photon on my own website.

Disclaimer: I work for Automattic but I would recommend Photon even if I didn’t.

Support for this plugin is provided via the WordPress.org forums.

The source code for this plugin is available on GitHub.

Tags
post thumbnail post thumbnails thumbnail thumbnails
View on WordPress.org ↗ Homepage ↗ Support ↗

Screenshots

Author-supplied previews from wordpress.org.

The main plugin interface.
The main plugin interface.
Regenerating in progress.
Regenerating in progress.
Interface for regenerating a single attachment.
Interface for regenerating a single attachment.
Individual images can be regenerated from the media library in list view.
Individual images can be regenerated from the media library in list view.
They can also be regenerated from the edit attachment screen.
They can also be regenerated from the edit attachment screen.

Per-version history

Show per-version detail (1 versions)

How the plugin evolves version by version.

Version Homepage Admin Last scan
v3.1.6 3 scans 2 scans 4 weeks ago

Scan history

Show individual scan log (5 scans)

Date Version Context Score Grade Time Memory
4 weeks ago v3.1.6 Homepage 100/100 A 0 ms 0.0 MB
1 month ago v3.1.6 Homepage 100/100 A 0 ms 0.0 MB
1 month ago v3.1.6 Admin 100/100 A 19 ms 0.0 MB
1 month ago v3.1.6 Admin 100/100 A 0 ms 0.0 MB
1 month ago v3.1.6 Homepage 93/100 A 151 ms 0.0 MB