Fast & simple plugin to automatically serve WebP & AVIF images to browsers which support those formats (with fallback to original format).
| Author: | Fastware (profile at wordpress.org) |
| WordPress version required: | 5.9 |
| WordPress version tested: | 6.2.2 |
| Plugin version: | 2.0.7 |
| Added to WordPress repository: | 25-02-2023 |
| Last updated: | 03-07-2023 |
| Rating, %: | 70 |
| Rated by: | 8 |
| Plugin URI: | |
| Total downloads: | 4 328 |
| Active installs: | 200+ |
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Fast, simple & free plugin to automatically convert and serve WebP & AVIF images.
Features
- Automatically convert and serve WebP/AVIF images.
- Increase your Google Pagespeed.
- Only images which are really used will be converted, does not convert the whole media library.
- WebP/AVIF quality is adjustable (default 100% = no quality loss)
- No image URLs are changed, solution is purely based on .htaccess rewrite rules.
- Serve original format in case the browser does not support WebP/AVIF (relying on the “Accept” header).
- The following source formats are supported: JP(E)G, PNG, GIF, BMP.
- Extra feature: WebP images are served as PNG when the browser/client does not support WebP (e.g. Microsoft Outlook).
Browser support
- WebP: all modern browsers
- AVIF: Chrome, Firefox, Safari (Edge doesn’t support AVIF yet)
Good to know
- It may take a few minutes before the WebP/AVIF images are generated after activating the plugin.
- AVIF is a relatively new format, and not widely supported yet on servers. This depends on your server configuration (see Server requirements).
- Generating AVIF images is CPU-intensive, and may take a while.
- WebP/AVIF format is only served when this format is smaller than the original file. Depending on the image, WebP/AVIF is not always the most efficient format.
- Animated GIF-images are not supported yet as GDlib/ImageMagick don’t have support for it
How the plugin works
The plugin does nothing until the first image is requested. Here is the conversion flow.
- Original image is requested in browser
- Image is added to the conversion queue, original image is still served.
- Conversion queue is processed in background, queued images are converted to WebP/AVIF format.
- When the image is requested now, and the browser supports WebP and/or AVIF, the WebP/AVIF image is served.