rodrigosilvano

This plugin converts JPEG/JPG/PNG to WebP at upload time—before WordPress generates sub-sizes. Supports Imagick (preferred) and GD (fallback). Options for quality, PNG lossless, and delete original.

RS Auto WebP Convert

Automatically converts JPEG/JPG/PNG to WebP on upload, with an option to delete the original. Imagick preferred, GD fallback. No tracking.

msunvi

Generally WordPress doesn’t allow the .webp format for WordPress media and gives an error, to solve that error you need this plugin. Simply activate this plugin, and you are ready to upload webp image. To speed up website you need to add webp images to your Website.
Simple plugin, there is no unnecessary code and its very light Plugin.

WEBP Format Permission

This plugin will allow .webp next generation image for WordPress.

RS Auto WebP Convert vs WEBP Format Permission