Upload Converter for WebP

Description

Upload Converter for WebP is a powerful WordPress plugin that automatically converts uploaded JPG, JPEG, and PNG images to modern WebP format for faster load times and better optimization. You can also convert existing images manually with one click from the Media Library or the plugin’s admin panel.

🎯 Features:

  • ✅ Automatic conversion to WebP during upload
  • ✅ Convert existing images from the admin dashboard
  • ✅ Media Library support:
    • List View: Action link to convert
  • ✅ Fullscreen lightbox preview with file info
  • ✅ Built using native WordPress functions (Imagick or GD)
  • ✅ Lightweight and cleanly coded for performance

How to Use

This plugin automatically converts images to WebP format during upload. You don’t need to do anything manually after installation.

🔄 Automatic Conversion (On Upload)

  • After activation, when you upload a JPG or PNG image to the Media Library, it will be automatically converted to WebP.
  • The converted image will be smaller in size, helping improve site speed and performance.

🛠️ Convert Existing Images

Option 1: From Media Library (List View)

  1. Go to Dashboard Media Library.
  2. Switch to List View.
  3. Select one or more JPG/PNG images.
  4. From the Bulk Actions dropdown, choose Convert to WebP.
  5. Click Apply.

Option 2: From Plugin Page

  1. Go to Dashboard WebP Converter (menu added by the plugin).
  2. You’ll see a list of all JPG and PNG images.
  3. Select the images you want to convert.
  4. Click on Convert Selected.
    ✅ After conversion, you’ll see the message:
    Converted to WebP successfully.

Notes

  • Only JPG and PNG images are supported.
  • Make sure your server supports WebP and the imagewebp extension in PHP.
  • If you get an error like “An error occurred in the upload”, check:
    • If the file type is supported
    • If PHP GD/WebP is enabled
    • File permissions are correct

Links

Screenshots

Installation

  1. Upload the plugin folder to the /wp-content/plugins/ directory or install via the Plugins screen in WordPress.
  2. Activate the plugin through the ‘Plugins’ screen.
  3. After activation, go to Dashboard WebP Converter or use the Media Library for manual conversions.

FAQ

Will it slow down uploads?

There is a minimal delay if automatic conversion is enabled, depending on image size and your server.

What if Imagick or GD is not available?

The plugin checks for both. If neither is available, a helpful error is shown.

Reviews

17 октября, 2025 1 reply
WooCommerce image uploader was a pain in the arse BUT this plugin solved two big failures in WooCommerce! Image upload was not updating newer product images — somehow the older image was appearing even after deletion from the media gallery! Site is a bit faster after global conversion of jpegs to webp. Thank you
12 августа, 2025 1 reply
This plugin are very helpful.
Read all 3 reviews

Contributors & Developers

“Upload Converter for WebP” is open source software. The following people have contributed to this plugin.

Contributors

Changelog

1.0

  • Initial release with full automatic and manual WebP conversion support.