WebP is a modern image format that provides better compression and smaller file sizes compared to traditional formats like JPEG and PNG. Serving WebP images on a WordPress website can improve performance and loading speed.
There are several ways to enable WebP support in WordPress depending on your setup and server configuration.
Table of Contents
1. Using a WordPress plugin
The simplest method is to use a plugin that automatically converts and serves WebP images.
Popular options include:
- WebP Express
- EWWW Image Optimizer
These plugins typically:
- convert uploaded images to WebP format
- serve WebP versions to compatible browsers
- keep original images as fallback for older browsers
This method requires minimal technical configuration.
2. Using server-side configuration
If your hosting uses Apache or NGINX, WebP delivery can be configured at the server level.
For Apache, this is usually done via .htaccess rules. For NGINX, configuration is done in the server block settings.
In this setup, the server:
- detects browser WebP support
- serves
.webpfiles when available - falls back to JPEG or PNG if needed
This method is efficient but requires server access and technical knowledge.
3. Using JavaScript detection
Another approach is to use JavaScript to detect browser support for WebP.
The script:
- checks whether the browser supports WebP
- loads WebP images if supported
- falls back to standard formats if not supported
This method can be added via:
- theme files (such as
functions.php) - header scripts (
header.php)
However, it is less efficient than server-side solutions.
Browser compatibility
Most modern browsers support WebP, but older browsers may not.
For this reason, it is important to:
- keep original JPEG or PNG files as fallback
- ensure proper conditional delivery of images
Practical considerations
When implementing WebP in WordPress, consider:
- plugin-based solutions are easiest for beginners
- server-level configuration offers better performance
- backups of original images should always be preserved
- testing is important to ensure compatibility
Summary
WebP images can be served in WordPress using plugins, server configuration, or JavaScript-based detection. Plugins are the simplest option, while server-level solutions provide the best performance. In all cases, fallback support for older browsers should be maintained.