
Drupal WebP is a game-changer for web developers, allowing for faster page loads and improved image quality. It achieves this by using a new image format that reduces file size while maintaining visual quality.
To get started with Drupal WebP, you'll need to meet the technical requirements, which include having a compatible browser and PHP version. For Drupal 8 and 9, you'll need to have PHP 7.2 or later installed.
The benefits of using Drupal WebP are numerous, including improved page load times, reduced bandwidth usage, and enhanced user experience. With Drupal WebP, you can also take advantage of features like lazy loading and responsive images.
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What is?
WebP is an image format developed by Google that uses both lossy and lossless compression, and its files retain high quality while being smaller in size than those in other popular formats.
This format offers a great quality/size ratio, making it a smart website speed optimization technique. Its benefits are not limited to quality and size – it also combines features of other formats we love, such as transparency like PNG and animation effects like GIFs.
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WebP lossless images are 26% smaller in size than their PNG equivalents, and WebP lossy images are 25-34% smaller than the respective JPEG images with an equal Structural Similarity Index (SSIM) quality index.
Here are some of the key features of WebP:
- It supports transparency like PNG.
- It allows for animation effects like GIFs.
Benefits and Features
The benefits of using WebP in Drupal are numerous. WebP is the most supported next-generation image format, offering a range of features that make it an attractive option for web designers and developers.
One of the key benefits of WebP is its ability to compress images smaller than JPG while maintaining image quality. In fact, WebP lossy images are 25-34 percent smaller than equivalent JPEG images, making them ideal for websites that need to load quickly.
WebP also supports transparency and lossless compression, making it a great alternative to PNG. Lossless WebP images are 26% smaller than PNGs, while lossy WebP images are 25-34 percent smaller than equivalent JPEG images.
Here are some of the key features of WebP:
- Lossy compression that is 25-34% smaller than JPEG
- Lossless compression that is 26% smaller than PNG
- Support for transparency
What Is and What Are the Benefits?

WebP is the most supported next-generation image format. The average WebP file size is 25%-34% smaller compared to JPEG file size at similar quality.
WebP offers all key features that until now have only been available through a variety of image formats, such as JPEG, PNG, and GIF. This includes fairly good quality lossy compression like JPEG, transparency and lossless compression like PNG, and animation like GIF.
A key advantage of WebP is its ability to compress images smaller than JPG while maintaining image quality. Official studies have shown that WebP lossy images are 25-34 percent smaller than equivalent JPEG images.
Transparency is supported by lossless WebP at a cost of only 22 percent more data.
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Out-of-the-Box Image Support
Drupal 9.2 offers out-of-the-box support for WebP images, which means you don't need to install any additional modules to use this feature. This is a great advantage for web developers and designers.
The average WebP file size is 25-34% smaller compared to JPEG file size at similar quality, making it an ideal choice for improving website speed.
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Officially, WebP is the most supported next-generation image format, and it offers all key features that were previously available through a variety of image formats.
To take advantage of this feature, you need to ensure that PHP's GD extension is built with WebP support. You can verify this by visiting the admin/reports/status/php#module_gd page in your Drupal website.
In Drupal 9.2, you can set up the automatic conversion of existing and upcoming JPG, PNG, or GIF files into WebP by creating the respective image styles. This is a standard workflow for Drupal image style creation.
The converted images can be used in any content type or entity type, making it easy to integrate WebP images into your website.
Here are the key benefits of using WebP images in Drupal 9.2:
- Smaller file sizes (25-34% smaller than JPEG)
- Improved website speed
- Out-of-the-box support in Drupal 9.2
- Easy integration with image styles
Implementation and Configuration
To implement WebP format for all images on a Drupal 9 website, you'll need to configure server WebP format support. This involves checking if the GD extension is installed and configured properly, as it supports converting images to WebP format.
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To configure server WebP format support, you'll need to check your php.ini file for the GD extension configuration. If it's not enabled, you can install it manually via the command `pecl install gd`. After installation, you'll need to restart your web server.
Once server WebP format support is enabled, you can proceed with installing and configuring the Imagemagick and WebP Drupal modules. These modules provide the necessary tools for converting images to WebP format. To install them, run the following Composer commands: `composer require drupal/imagemagick` and `composer require drupal/webp`. After installation, enable the modules and run `drush cr` to rebuild the cache.
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Implement Image Format Across Website
Implementing image format across your website is a crucial step in ensuring a seamless user experience. To do this, you'll need to configure your server to support the WebP format.
The first step is to configure your server to support WebP format. This can be done by installing and configuring the Imagemagick and WebP Drupal modules.
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You can install these modules using Composer: `composer require drupal/imagemagick` and `composer require drupal/webp`. Once installed, run `drush cr` to rebuild the cache.
After installing the modules, you'll need to configure the ImageMagick module. This can be done by navigating to `/admin/config/media/image-toolkit` and selecting the Imagick library.
You'll also need to set the image quality and path to the ImageMagick bin folder. This will allow the module to convert images to WebP format.
To verify whether the WebP format support is enabled, visit the PHP status page at `admin/reports/status/php#module_gd`.
Here are the steps to implement image format across your website:
- Enable/install the ImageAPI Optimize, ImageAPI Optimize WebP, and ImageAPI Optimize Binaries modules.
- Configure the ImageMagick module by selecting the Imagick library and setting the image quality and path to the ImageMagick bin folder.
- Create a new image style and add the "Convert to WEBP" effect.
- Select the WebP option from the dropdown menu and click Add effect.
- Apply the new effect to any existing image styles.
By following these steps, you'll be able to implement image format across your website and improve the user experience.
PHP
PHP is the backbone of your website, and it needs to support WebP images. You'll need to check if your PHP setup is compatible with WebP.
To do this, you'll need PHP 5 >= 5.4.0. This is the minimum version required to support WebP images.
Now, let's check if everything is working as expected. You can do this by checking your PHP setup. If you're using the GD Library, you'll need to check if it's enabled in your PHP.ini file. You can check this by looking for the GD extension in your php.ini file. If you can't find it, you might need to install libgd and enable it in your PHP.ini file.
Here are the minimum PHP and GD Library requirements for WebP image support:
- PHP 5 >= 5.4.0
- GD Library
If you're using a DDEV environment, you'll need to configure the DDEV Hook to enable WebP support. You can do this by adding additional settings to your .ddev/config.yaml file.
Technical Requirements
To get started with using WebP images in Drupal, you'll need to meet a few technical requirements.
First, you'll need Drupal 9.2, which is scheduled to be released on June 16, 2021. This version will support WebP images out of the box.
You'll also need to ensure that PHP's GD extension is built with WebP support. This is a crucial step, as it will allow you to use WebP images on your website.
To verify that WebP is supported, visit the image format support page on your website. You should see a message indicating that WebP is supported.
All latest versions of popular web browsers support WebP images, but it's essential to check browser support to ensure compatibility.
Here's a quick rundown of the technical requirements:
- Drupal 9.2
- PHP's GD extension built with WebP support
- Latest version of web browser
Image Conversion and Styles
The out-of-the-box support for WebP format in Drupal 9.2 is a game-changer for website speed. This functionality is fully integrated with Drupal's image styles system.
You can set up automatic conversion of existing and upcoming JPG, PNG, or GIF files into WebP by creating the respective image styles. This means you can use the converted images in any content type or entity type.
To convert images to WebP, you need to verify whether the WebP format support is enabled. This is usually available at admin/reports/status/php#module_gd.
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Here's a step-by-step guide to creating image styles with an effect that automatically converts files to WebP:
1. Select the "Convert" effect from the dropdown menu.
2. Add the "Convert" effect by clicking the "Add" button.
3. Select "WebP" from the extension options.
4. Click "Add effect" to complete the process.
Once you've created the image style, you can attach it to a content type, such as Article. This will enable the use of WebP format for images on your website.
By using WebP image styles, you can reduce file sizes significantly, as demonstrated in Example 2, where an image size was reduced from 250 KB to 134 KB.
If you're using Drupal 9.3, note that WebP support is not yet integrated with Drupal's responsive image style system. However, you can use contributed modules like WebP or ImageAPI Optimize WebP to achieve this functionality.
To implement WebP format for all images on a Drupal 9 website, follow these steps:
- Configure server webp format support.
- Install and configure Imagemagick and WebP Drupal modules.
- Add “Convert to WEBP” effect to relevant image styles.
Browser and Server Support
Drupal 8 and 9 support WebP images out of the box, which means you don't need to install any additional modules to get started.
The WebP module is compatible with Drupal 7, but you'll need to install the WebP module and the Image Tools module to use WebP images.
Drupal 8 and 9 also support WebP images in the CKEditor, which is a popular WYSIWYG editor for Drupal.
You can use the WebP module to convert images to WebP format, and it also supports WebP images in the ImageField module.
The WebP module is also compatible with the Image Science module, which provides advanced image processing features.
Drupal 8 and 9 support WebP images in the ImageCache module, which allows you to cache images in WebP format.
You can also use the WebP module to serve WebP images to browsers that support them, while serving JPEG or PNG images to browsers that don't.
The WebP module is a dependency of the WebP Responsive Image module, which provides responsive image features for Drupal.
You can use the WebP module with the Image Styles module to create WebP image styles.
The WebP module also supports WebP images in the Field Formatter module, which allows you to format images in WebP format.
You can use the WebP module with the Entity Browser module to upload and manage WebP images.
The WebP module is compatible with the Media module, which provides a flexible way to manage media files in Drupal.
You can use the WebP module with the Image Effect module to apply effects to WebP images.
The WebP module also supports WebP images in the Image Crop module, which allows you to crop images in WebP format.
You can use the WebP module with the Responsive Image module to create responsive images in WebP format.
The WebP module is a dependency of the Image Science module, which provides advanced image processing features.
You can use the WebP module with the Image Styles module to create WebP image styles.
The WebP module also supports WebP images in the Field Formatter module, which allows you to format images in WebP format.
You can use the WebP module with the Entity Browser module to upload and manage WebP images.
The WebP module is compatible with the Media module, which provides a flexible way to manage media files in Drupal.
Risks Ahead
Implementing WebP can be a complex process, and common issues can arise, increasing complexity.
Incorrect implementation approaches can lead to poor quality images, as seen in the case of Drupal projects with WebP images that had worse quality than JPEGs.
In this situation, the poor quality wasn't caused by the WebP image format itself but by the incorrect implementation on the Drupal side.
Pipeline and Conversion
To convert images to WebP on a Drupal website, you'll need to verify whether the WebP format support is enabled, which is usually available by default.
You can start creating image styles with an effect that automatically converts files to WebP, selecting the "Convert" effect from the dropdown menu and clicking "Add" to configure the extension settings.
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As long as you click "Add" next to the selected "Convert" effect, you'll be taken to the page with the extension settings for it, where you need to select "WebP" and click "Add effect."
On the image style page, you can see a preview with the original and the WebP image, showing a significant reduction in file size, such as from 164 KB to 31.5 KB.
You can attach the newly created image style to a content type, like Article, by going to Structure > Content types > Article > Manage display and clicking the cogwheel next to the image field.
Let's create a new pipeline by clicking on "+ Add optimization pipeline" and naming it, like "optimize images."
You should place the WebP processor before any other compression processors to avoid multiple compression of an image, which can have an inverse effect and provide a lower quality image at a larger file size.
To set the image quality, you can choose a percentage, like 80–90%, which should serve with good overall quality, or 100% for lossless compression.
Clear the Drupal cache after creating a new pipeline to ensure the changes take effect.
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