How to increase the WordPress image quality

If you find the thumbnails to be pixelated, there is a way to increase the quality with hooks.

Table of Contents

Two simple hooks to add to your functions.php

The image quality of thumbnails generated by WordPress is rather low. You can easily increase the quality with the following filters:

*   /my-child-theme/functions.php
*   Sets the image quality of pictures uploaded on WordPress. 
*   Defaults to 82, between 0 and 100. 
add_filter( 'jpeg_quality', fn () => 100 );
add_filter( 'wp_editor_set_quality', fn () => 100 );

The reason why we need two hooks is that wp_editor_set_quality will get overwritten by the jpeg_quality hook specifically.

That’s it! as easy as that!