Samuel Wood (Otto)

Replace the smilies with the original versions from previous versions of WordPress.
Added bonus: Disables all “emoji” functionality in WordPress 4.2 and above.

Classic Smilies

I have been using this plugin and I proudly recommend to everyone.
PRO
- It improve performance by removing inline JS and reducing HTTP requests.
Cons
- Smiley images shouldn't be look dull. It could be appear clear like Original.

Thanks & Regards,
Gulshan

Very goood plugin, some improvement needed

Replace the smilies with the original versions from previous versions of WordPress.

Spencer Forman

54 lines of CSS that makes it easier to use the default editor in WP.

Fix Block Editor Style

Make Block Editor Look More Like Classic Editor.

Classic Smilies vs Fix Block Editor Style