This plugin hasn’t been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

CMC Webp Images

Description

CMC Webp Images creates a webp version of all your WordPress images. It can do so all at once or when an image is requested. Simple to install and set up, this plugin will increase your page load times and decrease the amount of bandwidth you need to serve images. The webp image format is the recommended image format by Google’s Page Speed/Lighthouse.

Requirements

CMC Images requires:
– WordPress 5.0 or greater
– PHP 7.0 or greater
– The Apache 2 web server
PHP GD module

Screenshots

  • Admin options page
  • Quality test
  • Image generation status

Installation

To install the plugin, use the plugin admin page to search for cmc images, then click on the appropriate search result item. After you activate the plugin, head over to Settings -> CMC Images to configure the various settings.

The following is a brief description of each configuration setting.

Enable Webp Support

When this item is checked, your Apache web server’s .htaccess file will be updated to serve webp images (when the file exists).

Serve Webp Images in Theme Folders

Check this item to allow webp generate in your theme subfolders.

Serve Webp Images in Plugins Folders

Check this item to allow webp generate in your plugins subfolders.

NOTE: To serve webp images in your theme and plugin subfolders, you must check the *Generate Webp Images Now** checkbox.

Webp Image Quality

Enter a number representing the quality of the webp images. Lower numbers mean smaller images/faster load times, but also lower quality. We recommend using a quality of 50 to start, then adjusting accordingly.

Test Image Quality

Before saving, use the Test Image Quality button to get a visual idea of what your images will look like.

Delete WEbp Images on Uninstall

Check this item to ensure that any generate webp images are removed when uninstalling the plugin.

Generate Webp Images Now

By default, webp images are created and served when requested by the browser. Checking this item will create the webp images ahead of time, saving time and system resources. This process will take a few seconds or more, depending on the number and sizes of your images.

Save Changes

Click the Save Changes button when all configuration items have been set.

Reviews

Ogwekkuminebiri (Ntenvu) 25, 2021
Easy to install and set up. I was serving webp images in about 5 minutes This plugin removed a couple of warnings from my Lighthouse results page and increased the score by 8 points. Not a huge amount, but every little bit helps. Plus, I can see (just by eyeballing it) that some of my image-intensive pages are loading faster now.
Read all 0 reviews

Contributors & Developers

“CMC Webp Images” is open source software. The following people have contributed to this plugin.

Contributors

Translate “CMC Webp Images” into your language.

Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.

Changelog

20211208

  • Version 1.0.0 released.

20211209

  • Version 1.0.1 released.
  • Fixed issue where removing .htaccess statements was leaving an errant return character.
  • Fixed issue where wp_cron would only start generating images after another page was viewed in the browser.

20211209

  • Version 1.0.2 released.
  • Fixed typo in .htaccess.

20211216

  • Version 1.0.3 released.
  • Delete webp images before recreating.
  • Added deactivation hook to remove .htaccess entries.

20220118

  • Version 1.0.4 released.
  • Fixed issue where error would occur upon removing the imagewebp() PHP function AFTER the plugin was installed.