Still BE Image Quality Control

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Control the compression quality level of each image size individually to speed your site up display.

Author:Daisuke Yamamoto (profile at
WordPress version required:5.3
WordPress version tested:6.0.0
Plugin version:1.3.0
Added to WordPress repository:14-07-2021
Last updated:23-05-2022
Rating, %:0
Rated by:0
Plugin URI:
Total downloads:1 907
Active installs:100+
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You can individually set the compression quality of the resized image that is automatically generated when you upload the image to the WP media library.

Setting the optimum compression quality level helps ensure image quality and speed up page display.
The quality level can be examined while checking in real time.

This plugin will automatically generate the same quality and more compressed WebP if your server supports WebP.
And if user’s browser supports WebP, deliver automatically WebP instead of JPEG or PNG. (No need to rewrite the URL of the tag)
It contributes to improving CWV (Core Web Vitals).

  • Set the quality level in the image type (JPEG / PNG / WebP) and size name table.
  • Set the default quality level if not set.
  • Set the quality level for WebP compression of the original image.

The following can be set as options.

  • Guarantee a Secure Filename (Deny a multibyte filename)
  • Autoset Alt from Exif (only JPEG)
  • Add a Quality Level Suffix
  • Enable Interlace/Progressive
  • Enable Generating WebP
  • Enable PNG8
  • Optimize “srcset” Attribute
  • Force Adding the Query String for Image Cache Clear
  • Optimize Delay by WP-Cron

Other functions

In addition, it has the following functions.

  • Add Some Custom Image Sizes
  • Test Quality Level
  • Change of Big Image Threshold
  • Reset Settings
  • Run Re-Compression
  • Auto Re-Compression using WP-Cron

How to use

After installing and activated, WebP auto-generation and small image compression will be high.
Adjust the settings if necessary and recompress all images.

  1. Install
  2. Activate
  3. Change Settings (if you need)
  4. Recompress uploaded images (if you need)

Be sure to make a backup before recompressing.

Access to the settings screen

  • Setting Screen
  • Go to “Image Qualities”