York IE – WebP On Upload Wordpress Plugin - Rating, Reviews, Demo & Download
Plugin Description
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
.webpversions and attachment metadata is updated.
Developer filters
yiewebpu_webp_quality— Adjust the WebP quality (0–100) used during conversion. Default is 82.
Screenshots
Settings page with per-format conversion toggles.
Manual Convert to WebP button in the attachment details popup.
Bulk Convert to WebP action in the Media Library list view.
