Last Updated on October 31, 2024 by Mike Kipruto
WordPress generates various “image sizes” for images uploaded to the media library.
Media Library
The Media Library Screen allows you to edit, view, and delete previously uploaded media to your blog. Multiple Media objects can be selected for deletion. You can also search and filter for the desired Media.
media library
WordPress generates three pre-defined image sizes by default and keeps the original. The following are the default resolutions for the three generated image sizes:
- Thumbnail: 150px square
- Medium size: maximum width and height of 300px
- Large size: maximum width and height of 1024px
- Full size: the original/full image size that you uploaded.
To remove specific image sizes from being generated when uploading images, you can use the intermediate_image_sizes_advanced filter hook.
Here is a code you can use to remove it:
PHP
add_filter( 'intermediate_image_sizes_advanced', 'remove_image_sizes', 10, 3 );
function remove_image_sizes( $new_sizes, $image_meta, $attachment_id ) {
// Remove 'thumbnail' and 'medium' image sizes
unset( $new_sizes['thumbnail'] );
unset( $new_sizes['medium'] );
// Return the modified array of image sizes
return $new_sizes;
}