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

This is useful for conditions these types of as:

  • A new thumbnail size has been extra and you want past uploads to have a thumbnail in that sizing.
  • You have modified the dimensions of an current thumbnail sizing, for illustration by way of Configurations → Media.
  • You have switched to a new WordPress concept that makes use of highlighted photos of a diverse sizing.

It also offers the capability to delete old, unused thumbnails in order to totally free up server house.

In Memory of Alex Mills

In February 2019 Alex Mills, the writer of this plugin, handed absent. He leaves powering a selection of plugins which will be taken care of by Automattic and users of the WordPress community. If this plugin is beneficial to you be sure to contemplate donating to the Oregon Well being and Science University. You can obtain far more data below.

Alternate options


If you have command line access to your server, I very advise working with WP-CLI as a substitute of this plugin as it’s more rapidly (no HTTP requests overhead) and can be run inside of of a monitor for those people with lots of thumbnails. For specifics, see the documentation of its media regenerate command.

Jetpack’s Photon Module

Jetpack is a plugin by Automattic, makers of It provides your self-hosted WordPress website some of the performance that is obtainable to web-sites.

The Photon module can make the pictures on your web site be served from’s world-wide articles delivery community (CDN) which should really velocity up the loading of photos. Importantly however it can produce thumbnails on the fly which means you’ll under no circumstances want to use this plugin.

I personally use Photon on my have web-site.

Disclaimer: I perform for Automattic but I would advise Photon even if I did not.

Need to have Help? Observed A Bug? Want To Lead Code?

Support for this plugin is supplied by way of the message boards.

The resource code for this plugin is offered on GitHub.

Set up

  1. Go to your admin space and pick Plugins → Increase New from the menu.
  2. Lookup for “Regenerate Thumbnails”.
  3. Simply click put in.
  4. Click on activate.
  5. Navigate to Resources → Regenerate Thumbnails.