Generate a Custom Image Size Only for One Post Type
Registers an image size, such as a wide portfolio banner, but only creates it for images uploaded to that post type, so every other upload is not stored in yet another size.
Snippet Library
Media snippets for WordPress
Snippets for the Media Library and uploads: allow SVG or other file types, rename and limit uploads, add image sizes, categories for media and alt text helpers. For content teams and developers who handle a lot of images and files.
Register a Custom Image Size
Adds a 600 by 400 cropped image size and makes it selectable in the editor image size dropdown.
Show Custom Image Sizes in the Editor Size Menu
Adds every image size registered by your theme and plugins to the size dropdown in the editor and media modal, instead of only Thumbnail, Medium, Large and Full.