g100g

Here is a simple plugin to add thumbnails to your Posts list within the WordPress backend.
Just install it and choose from the options which post types you want to show the thumbnails.
You can choose the built in Post and Page, along with all added Custom Post Types.

Thumbnails for Backend

It has not been updated for a long time but still work perfectly.



Simple, but cool!

Simple plugin to add thumbnails to your Posts list within the WordPress backend.

Mark Howells-Mead

Adds a new column to the WordPress admin post list view, containing a preview of the post’s featured image (where available).
<h3>Hooks</h3>
Developers can use the <code>mhm-list-postthumbnail/exclude_posttype</code> filter to exclude the post thumbnail column from certain post types as required. The filter accepts and returns an array.

Add post thumbnail to wp-admin list view

Adds a new column to the WordPress admin post list view, containing a preview of the post's featured image (where available).

Thumbnails for Backend vs Add post thumbnail to wp-admin list view