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whyWordpressNeed WebP image optimization?
In today's Internet environment where speed is key,WordPress Image OptimizationIt has become a compulsory course for website acceleration.
Traditional JPEG, PNG, and GIF images are large in size, slow to load, and provide a poor user experience.
WebP image formatLaunched by Google, it has the following advantages:
- Smaller file sizes → Improve website access speed and reduce bounce rate.
- Image quality is not lagging behind → Still clear and delicate after compression.
- SEOfriendly → WordPress websites are more likely to get higher rankings on search engines such as Google and Baidu.
in other words,WordPress WebP Optimization = Fast speed + high ranking + more satisfied users.
Pain points of traditional image compression in WordPress
Most webmasters do this:
- For the first time TinyPNG Or Squoosh Manually compress and convert to WebP.
- Then upload it to your WordPress website.
The problem is - this process is like doing boring brick-moving ⚒️.
Not only is it time-consuming, it also significantly reduces the efficiency of writing articles. Moreover, relying on plugins either has limited quotas or too many plugins can cause WordPress to become slow.
WordPress plugin-free automatic conversion of PHP code to WebP

The solution is here!
Through the following paragraph PHP code, which can automatically convert JPG, JPEG, PNG, and GIF into WebP when uploading, completely freeing your hands.
/**
* Convert Uploaded Images to WebP Format with Custom Quality
*/
add_filter('wp_handle_upload', 'wpturbo_handle_upload_convert_to_webp');
function wpturbo_handle_upload_convert_to_webp($upload) {
if (in_array($upload['type'], ['image/jpeg', 'image/png', 'image/gif'])) {
$file_path = $upload['file'];
if (extension_loaded('imagick') || extension_loaded('gd')) {
$image_editor = wp_get_image_editor($file_path);
if (!is_wp_error($image_editor)) {
$quality = 80; // 建议范围 70-90
$image_editor->set_quality($quality);
$file_info = pathinfo($file_path);
$dirname = $file_info['dirname'];
$filename = $file_info['filename'];
$def_filename = wp_unique_filename($dirname, $filename . '.webp');
$new_file_path = $dirname . '/' . $def_filename;
$saved_image = $image_editor->save($new_file_path, 'image/webp');
if (!is_wp_error($saved_image) && file_exists($saved_image['path'])) {
$upload['file'] = $saved_image['path'];
$upload['url'] = str_replace(basename($upload['url']), basename($saved_image['path']), $upload['url']);
$upload['type'] = 'image/webp';
@unlink($file_path); // 假如要保留原图,请注释这行
}
}
}
}
return $upload;
}
👉 Recommended by Code Snippets Or WP Code WordPress pluginTo manage this code, it will not affect the WordPress theme upgrade.
by WordPress plugin-free WebP image optimization, you can easily achieve:
- Compress as soon as you upload → Save a lot of time
- Faster loading speed → Improved user experience
- Better SEO performance → Higher website ranking
Actual test results: How strong is WordPress WebP compression?
- Before uploading: PNG format, size 975 KB
- After uploading: Automatically convert to WebP, the size is only 35 KB 🎉
- Warm reminder: The specific compression size is subject to the actual compression situation.
Compression ratio up to 80% or more, the loading speed is so fast🚀, users can hardly feel the decline in image quality.
WordPress image compression automation makes your website run faster than the wind! 🌪️
Hope Chen Weiliang Blog ( https://www.chenweiliang.com/ ) shared "WordPress plug-in-free implementation: automatic conversion of uploaded images to WebP format (essential for website acceleration 🔥)", which is helpful to you.
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