How to stop WordPress from generating different image sizes without plugin

Three different-sized pictures are automatically generated by WordPress when you submit an image. Creating different sizes of your photographs becomes unnecessary if you utilize compression techniques, and it also takes up more storage space that might be used for other materials. This may be avoided in a straightforward manner without the need for a plugin.

You may stop WordPress from creating disparate picture sizes from the WordPress dashboard by following the instructions in this article.

Disable WordPress from generating different image sizes 

To stop WordPress from generating different image sizes after uploading, follow these steps:

1. Log into WordPress with the Administrator account.
2. On the Dashboard in the left sidebar, click Settings, and then click Media:
3. In the Media Settings, set the width and height to ZERO for the following sizes:
   • Thumbnail Size
   • Medium Size
   • Large Size
   
4. Click on Save Changes, to save the changes.

Know more – How to do content copy protection in WordPress