Title: Auto WebP & Alt Optimizer Author: wodey Published: 5 janvier 2026 Last modified: 26 mars 2026 --- Recherche d’extensions ![](https://ps.w.org/auto-webp-alt-optimizer/assets/banner-772x250.png?rev=3432469) ![](https://ps.w.org/auto-webp-alt-optimizer/assets/icon-256x256.png?rev=3432469) # Auto WebP & Alt Optimizer Par [wodey](https://profiles.wordpress.org/wodey/) [Télécharger](https://downloads.wordpress.org/plugin/auto-webp-alt-optimizer.zip) * [Détails](https://fr.wordpress.org/plugins/auto-webp-alt-optimizer/#description) * [Avis](https://fr.wordpress.org/plugins/auto-webp-alt-optimizer/#reviews) * [Installation](https://fr.wordpress.org/plugins/auto-webp-alt-optimizer/#installation) * [Développement](https://fr.wordpress.org/plugins/auto-webp-alt-optimizer/#developers) [Support](https://wordpress.org/support/plugin/auto-webp-alt-optimizer/) ## Description You know that **Site Speed** and **SEO** are the keys to success. **Auto WebP & Alt Optimizer** is a lightweight yet powerful tool designed to solve two major problems automatically: 1. **Image Size (Speed):** It automatically converts your uploaded JPG/PNG images into the modern **WebP** format. WebP images are significantly smaller (often 30- 50% smaller) than standard JPEGs. 2. * **New in 1.4:** We now use the native PHP GD library (`imagewebp`) to ensure compression settings work on all server environments, bypassing common WordPress cache issues. 3. **Image SEO (Ranking):** It automatically cleans up your image filenames (removing hyphens and underscores) and sets them as the **Alt Text**. Google relies on Alt text to understand images, and this plugin ensures you never forget to fill it in. ### Key Features * **Native WebP Conversion:** Uses low-level GD functions to guarantee file size reduction. * **4 Quality Levels:** Choose from Low (20), Medium (50), High (80), or Very High( 90) quality presets to suit your needs. * **Auto Alt Tags:** Converts `my-product-photo.jpg` to « My Product Photo » automatically. * **Zero Bloat:** No complex configuration. Just install, select a level, and forget. ### Why use this plugin? * **Boost Core Web Vitals:** Smaller images mean faster LCP (Largest Contentful Paint). * **Save Storage:** Stop storing duplicate versions of images. original files are replaced to save space. * **Automate SEO:** Save hours of manual work filling in Alt tags. > **Note:** This plugin processes images upon upload. It does not currently process > images already existing in your Media Library. ## Installation 1. Upload the plugin files to the `/wp-content/plugins/auto-webp-alt-optimizer` directory, or install the plugin through the WordPress plugins screen directly. 2. Activate the plugin through the ‘Plugins’ screen in WordPress. 3. Go to **Settings -> WebP & Alt Settings** to configure the plugin. 4. Enable the switch and select your desired Quality Level (Recommended: High – 80). 5. Done! Upload a new image to test it out. ## Avis Il n’y a aucun avis pour cette extension. ## Contributeurs/contributrices & développeurs/développeuses « Auto WebP & Alt Optimizer » est un logiciel libre. Les personnes suivantes ont contribué à cette extension. Contributeurs * [ wodey ](https://profiles.wordpress.org/wodey/) [Traduisez « Auto WebP & Alt Optimizer » dans votre langue.](https://translate.wordpress.org/projects/wp-plugins/auto-webp-alt-optimizer) ### Le développement vous intéresse ? [Parcourir le code](https://plugins.trac.wordpress.org/browser/auto-webp-alt-optimizer/), consulter le [SVN dépôt](https://plugins.svn.wordpress.org/auto-webp-alt-optimizer/), ou s’inscrire au [journal de développement](https://plugins.trac.wordpress.org/log/auto-webp-alt-optimizer/) par [RSS](https://plugins.trac.wordpress.org/log/auto-webp-alt-optimizer/?limit=100&mode=stop_on_copy&format=rss). ## Journal des modifications #### 1.4 * Changed quality selection to fixed presets (Low, Medium, High, Very High) for better usability. * Switched to native PHP GD library functions (`imagewebp`) to solve server compatibility and caching issues. * Added support for retaining PNG transparency. #### 1.3 * Improved image resizing logic to force cache refresh. #### 1.2 * Fixed Text Domain mismatch issues. * Improved sanitization and security. #### 1.0 * Initial release. ## Méta * Version **1.5** * Dernière mise à jour **il y a 4 semaines** * Installations actives **10+** * Version de WordPress ** 6.0 ou plus ** * Testé jusqu’à **6.9.4** * Version de PHP ** 7.4 ou plus ** * Langue * [English (US)](https://wordpress.org/plugins/auto-webp-alt-optimizer/) * Étiquettes * [auto alt](https://fr.wordpress.org/plugins/tags/auto-alt/)[image compression](https://fr.wordpress.org/plugins/tags/image-compression/) [image optimizer](https://fr.wordpress.org/plugins/tags/image-optimizer/)[seo](https://fr.wordpress.org/plugins/tags/seo/) [webp](https://fr.wordpress.org/plugins/tags/webp/) * [Vue avancée](https://fr.wordpress.org/plugins/auto-webp-alt-optimizer/advanced/) ## Évaluations Aucun avis n’a encore été envoyé. [Your review](https://wordpress.org/support/plugin/auto-webp-alt-optimizer/reviews/#new-post) [Voir tous les avis](https://wordpress.org/support/plugin/auto-webp-alt-optimizer/reviews/) ## Contributeurs * [ wodey ](https://profiles.wordpress.org/wodey/) ## Support Quelque chose à dire ? Besoin d’aide ? [Voir le forum de support](https://wordpress.org/support/plugin/auto-webp-alt-optimizer/)