Automatically convert images to WebP format while uploading them to the WordPress media library. Replace originals, convert all sizes, and manage conv …
Active installations20Adoption metric — not a quality score
WordPress.org ratingNo WordPress.org ratings yet
Official packageDirect from WordPress.org
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WP PlugIndex currently records York IE – WebP on Upload version 1.4.2 as active, updated 2mo ago and tested up to WordPress 7.0.
Overview
About this plugin
York IE – WebP on Upload plugin automatically converts JPEG, PNG, and static GIF images to WebP format while uploading them to the WordPress media library. The plugin replaces the original files on disk and converts every registered image size generated by WordPress.
This helps reduce image file sizes and improve page load performance without requiring a third-party image optimization service.
Features
Automatic WebP conversion on media upload
Replaces the original image file with the WebP version
Converts all generated image sizes (thumbnail, medium, large, and custom sizes)
Per-format settings for JPEG, PNG, and GIF
Manual Convert to WebP button in the attachment details popup
Bulk Convert to WebP action in the Media Library list view
Skips animated GIF and SVG files
Uses PHP GD ( imagewebp ) — no external API required
Requirements
PHP GD extension with WebP support ( imagewebp() )
WordPress 6.0 or later
How it works
A user uploads an image to the Media Library.
The plugin checks whether the format is enabled in settings.
GD converts the uploaded file and all generated sizes to WebP.
Original files are replaced with.webp versions and attachment metadata is updated.
Developer filters
yiewebpu_webp_quality — Adjust the WebP quality (0–100) used during conversion. Default is 82.
WordPress.org metadata
Plugin tags
Topics listed for this plugin in the WordPress.org directory.
image optimization
jpg to webp
png to webp
webp converter
Compatibility & maintenance
Compatibility & maintenance
Tested up to WordPress 7.0
Not yet marked as tested with WordPress 7.1. WordPress.org currently lists Tested up to 7.0.
Current WordPress releaseWordPress 7.1
WordPress.org Tested up to7.0
Minimum requirementsWordPress 6.4.0 · PHP 7.4
Update activity19 Aug 20262mo ago
“Tested up to” is directory metadata supplied by the plugin author. WP PlugIndex does not turn an older declaration into a claim that the plugin is incompatible.
Changes recorded by WP PlugIndex
Recent tracked changes
No tracked version or compatibility changes have been recorded by WP PlugIndex yet.
Tracking & source
WP PlugIndex tracks public WordPress.org directory metadata and records selected version, compatibility and availability changes as they are detected.
