beejeridou

Image to Break Point resizes images for different breakpoints and loads only if the resolution allows. This plugin uses the library “response.js” from Ryan Van Etten and can also be coupled with the plugin “Multiple Post Thumbnails” from Chris scott order to choose an image according to screen resolution.

Image To Break Point

Image to Break Point resizes images for different breakpoints and loads only if the resolution allows.

mores

This plugin is basically just a little improvement of <a href="https://wordpress.org/extend/plugins/resize-at-upload/" title="Resize-At-Upload" rel="ugc">Resize-At-Upload</a>, a fabulous plugin by A. Huizinga.
The plugin will automatically resize an image upon upload, depending on the maximum width and height that you define. Gone are the days when you, or your client, will ruin a site’s layout by uploading a huge file with 25 megapixels. 
Be advised: there is no backup, no copy of the originally uploaded image.
The plugin uses a class originally from Jacob Wyke (www.redvodkajelly.com).

Resize at Upload Plus

Automatically resize (i.e. scale down) images after uploading. Save disk space and preserve your layout

Image To Break Point vs Resize at Upload Plus