Descripción
This plugin converts every uploaded JPG or PNG image into modern WebP format to improve performance and reduce file size.
Key features:
– automatic conversion of JPG and PNG images to WebP on upload
– correct generation of all WordPress image thumbnails
– configurable WebP quality level
– optional maximum image width (original images are resized before thumbnails are generated)
– automatic removal of original JPG/PNG files to save disk space
– full compatibility with WordPress “big image scaling”
– automatic alt text generation based on the filename
– filename sanitization and collision-safe renaming
All settings apply only to newly uploaded images. Existing media files are not modified.
Configuration
You can configure the plugin in Tools Force WebP.
Available options:
– WebP quality (0–100): controls compression quality for newly uploaded images
– Max width (px, optional): limits the maximum width of original images before WordPress generates thumbnails (0 = disabled)
All settings affect only images uploaded after saving the configuration.
Instalación
- Download the plugin or install it from the WordPress Plugin Directory.
- Activate it via the Plugins menu in WordPress.
- From now on, any JPG or PNG file uploaded to the Media Library will:
- be converted to WebP
- have the original file removed
- receive an alt text based on the filename
- be renamed to avoid overwriting if duplicates exist
FAQ
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Does the plugin support GIFs?
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No. Only JPG/JPEG and PNG are supported. Other formats remain unchanged.
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What happens if the server does not have Imagick with WebP support?
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The plugin deactivates itself and shows an admin notice. Please enable Imagick with WebP support on your server.
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How can I change the compression quality?
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The default is 90%. You can change it in Tools Force WebP. The new quality will be applied to all images uploaded after you update the setting.
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Does the plugin generate WordPress thumbnails correctly?
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Yes. Images are converted to WebP only after WordPress finishes generating all intermediate image sizes, so thumbnails work exactly as expected.
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What happens to very large images?
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If a maximum width is configured, large images are automatically resized before thumbnails are generated. WordPress backup originals are removed to avoid duplicate files.
Reseñas
Colaboradores y desarrolladores
«Force WebP» es un software de código abierto. Las siguientes personas han colaborado con este plugin.
Colaboradores
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Registro de cambios
1.3
- Improved compatibility with other plugins by lowering upload hook priorities.
- Other plugins can now safely set or override image title and alt text.
- Minor internal code and stability improvements.
1.2
- Fixed thumbnail generation issue (conversion now runs after metadata creation) – thanks to @koultti.
- Added optional maximum image width setting for original uploads.
- Integrated with WordPress big image scaling.
- Automatic removal of WordPress backup original images.
- Improved WebP quality handling (quality setting now reliably affects output).
- Internal code cleanup and stability improvements.
1.1.4
- Added a «Settings» link on the plugins list.
- Added server WebP support status message on the settings page.
1.1.3
- Typo fixed.
1.1.2
- Changed minimum required PHP version to 8.1.
- Changed minimum WordPress version to 6.5.
1.1.1
- Improvements and small fixes.
1.1
- Improved: plugin now checks whether Imagick is available on the server.
1.0.3
- Fixed issue where PNG images without transparency were converted to fully transparent images.
- Added configuration page in Tools Force WebP to set image quality.
1.0.2
- Default WebP changed to 90%.
1.0.1
- Added filename uniqueness handling for WebP files.
1.0
- Initial release: convert JPG/PNG to WebP (90% quality), remove original files, rename files, and set alt text.