how to remove thumbnails from wordpress?

Wordpress will generate 3 different size thumbnails for every image. These images all are thumbnails. May be these thumbnails won’t be used any more. But they will exist on your server.  Inorder to save space and make backup work easier, I decided to do some setting and make wordpress won’t generate these thumbnails any more.

First, come into the Dashboard of your wordpress. Direct to the Settings.

Second, come into Media option, the screenshot will as follows.

Set all width and height value.  When insert a new picture into wordpress, if the images width and height exceed the values which you setted. Then the corresponding size will be generated. As the max picture  size  on my site is 800*800, so I set them to 1024. In this option, the all thumbnails won’t be generated.

Save your changes.

When you insert picture again, the thumbnails can’t be used, and the files for that size won’t be generated also.

Enjoy yoursel.