Modern Image Formats

Description

This plugin adds WebP and AVIF support for media uploads within the WordPress application. By default, AVIF images will be generated if supported on the hosting server, otherwise WebP will be used as the output format. When both formats are available, the output format can be selected under Settings > Media.

Modern images will be generated only for new uploads, pre-existing images will only be converted to a modern format if images are regenerated. Images can be regenerated with a plugin like Regenerate Thumbnails or via WP-CLI with the wp media regenerate command.

By default, only modern image format sub-sizes will be generated for JPEG or PNG uploads. Only the original uploaded file will still exist as a JPEG/PNG image, generated image sizes will be WebP or AVIF files. To change this behavior, there is a checkbox in Settings > Media labeled 'Output fallback images' that, when checked, will result in the plugin generating both the original format as well as WebP or AVIF images for every sub-size. This will only affect newly uploaded images after making said change.

This plugin was formerly known as WebP Uploads.

Other Notable Features

Here are a few other notable features of this free Modern Image Formats plugin.

AVIF

Images

Modern Image Formats

Performance

Webp

FAQ

Feedback is encouraged and much appreciated, especially since this plugin may contain future WordPress core features. If you have suggestions or requests for new features, you can submit them as an issue in the WordPress Performance Team’s GitHub repository. If you need help with troubleshooting or have a question about the plugin, please create a new topic on our support forum.