WordPress Width Plugins

Responsive Block Control adds responsive toggles to a "Visibility" panel of the block editor, to show or hide blocks according to screen width.

Image Automatic Height Width plugin will fix error "Image Elements do not have explicit width and height"

Remove width and height attributes of image tags.

This plugin shows a current screen width on WP adminbar.

This plugin adjust default width of the page editor.

Adds width and height columns to the Media Library.

This plugin creates a new Gutenberg block, which allows you yo create a container with an adjustable maximun width, giving your perfect control over t …

FullscreenWidth adds a input field to change the editarea width, next to the toolbar buttons at the fullscreen view.

Flickr photo oembed extracted in larger size, for wide and responsible themes.

WP Themes by Screensize will allow you to determine which of two wordpress themes to display to the site visitor depending on their browser width

Makes the admin area fixed-width instead of elastic. Easy to customize width.