aiwatech

In modern web designs, designers create different sizes of images on the web pages for attractive layout. If a web page is built using wordpress, a developer has to register every image size in theme to make sure, if client uploads an image of different size, it does not break the layout.
With a new WordPress installation, by default it creates three sizes e.g. thumbnail (150 x 150), medium (300×300), large (1024×1024) which means whenever a new image will be uploaded, WordPress will keep at least four copies of images on the server, one original image and 3 cropped image copies based on image sizes.
When developer/designer needs different size of image, they will register more image sizes e.g. hero, product thumbnail, product large image, team member image etc depending on design of the page.
Now lets say we have 3 default and 3 custom image sizes defined in theme, and now whenever a new image will be uploaded, WordPress will create 6 image copies and 1 original image even we need to use only 1 for a specific area on the website, remaining copies will remain on the server and will occupy space. Imagine when we have lots of posts, pages having different images, how many unnecessary images WordPress creates on the server which are useless and just eat server space. In case of Woo-Commerce website if you need to upload a new slider image for home page or a hero image for about page, it will create a lots of copies including different sizes of products image sizes which woo-commerce registers itself.
Ultimately website speed gets effected and server space as well.
To solve this issue, we built a plugin WP Image Sizes this plugin allows user to decide which image sizes should be created for every image being uploaded through WordPress.
After installing WP Image Sizes, it will create a setting page from where user can assign image sizes to each CPT. e.g. user can assign one size for hero/slider CPT, one size for team member, testimonials. After assigning image sizes to each CPT when user will upload a new image, WP Image Sizes will only allow WordPress to create copies of image sizes which were assigned to the CPT.
In case user tries to upload an image from a Media, it will show options in media uploader to select which image size user wants and WP Image Sizes will only create that image size.
WP Image Sizes plugin saves a lot of space on the server and plays a role to make WordPress website a bit fast.
<h3>PRO</h3>
WP Image Sizes plugin is also available in a professional version which includes more features <a href="https://aiwatech.com/product/wp-image-sizes-pro/" rel="nofollow ugc">See here</a>

WP Image Sizes

Select the only image sizes for post types you want to be generated. Eliminate unnecessary image sizes.

Steve

Easy Image Sizes For WordPress is a very simple plugin that allows you to create an unlimited number of different image sizes and them alongside the builtin ones (ie. thumbnail, small, medium etc)
When an image get uploaded through the WordPress media manager (including the featured image option), WordPress creates variations of said image at different sizes for use in different scenarios. I am sure you will have seen the option to select either thumbnail, medium, or full size when inserting an image into a post or page. This plugin simply adds to the list of automatically generated sizes available.
Features:
<ul>
<li>Create an unlimited number of image sizes</li>
<li>Custom sizes automatically appear in the media manager for inserting into posts</li>
<li>Images sizes are available for the featured image/post thumbnail</li>
<li>Have WordPress crop or scale the image</li>
<li>Set cropping positions (ie. top, bottom, right etc)</li>
<li>Uses all native functionality for a smooth experience</li>
</ul>

Easy Image Sizes

Good thing!

Remarkably easy to use (after some initial confusion on my part from not reading the instructions).

I created an image size to be used with a list of posts.  When I looked at the list of posts, the images were displayed in their expected sizes.  Easy peasy!

Easy to use

Easy Image Sizes allows you to configure different WordPress image sizes and use them alongside the standard ones (ie. thumbnail, small, medium etc)

WP Image Sizes vs Easy Image Sizes