Title: WebP Converter & Image Optimizer Author: SPINX Digital Published: 8 juin 2026 Last modified: 7 octobre 2026 --- Recherche d’extensions ![](https://ps.w.org/spinx-digital-image-converter/assets/banner-772x250.png?rev =3706702) ![](https://ps.w.org/spinx-digital-image-converter/assets/icon-256x256.png?rev=3564249) # WebP Converter & Image Optimizer Par [SPINX Digital](https://profiles.wordpress.org/spinxdigitaldev/) [Télécharger](https://downloads.wordpress.org/plugin/spinx-digital-image-converter.1.0.3.zip) * [Détails](https://fr-ca.wordpress.org/plugins/spinx-digital-image-converter/#description) * [Avis](https://fr-ca.wordpress.org/plugins/spinx-digital-image-converter/#reviews) * [Installation](https://fr-ca.wordpress.org/plugins/spinx-digital-image-converter/#installation) * [Développement](https://fr-ca.wordpress.org/plugins/spinx-digital-image-converter/#developers) [Support](https://wordpress.org/support/plugin/spinx-digital-image-converter/) ## Description Convert JPEG, PNG & GIF to WebP and bulk-optimize your Media Library entirely on your own server. No external services. No data sent. No quotas. ### 🚀 Local-First WebP Conversion For WordPress **WebP Converter & Image Optimizer** generates lightweight WebP versions of your JPEG, PNG, and GIF uploads — including every WordPress-generated thumbnail size — so your pages load faster and your images stay lighter. Unlike cloud-based optimizers, **all processing happens on your own server** using PHP’s GD or ImageMagick extension. Nothing is uploaded to a third party, no account is required, and there are **no monthly limits or quotas**. Your images never leave your hosting environment. It’s built for site owners who want faster image delivery, a safe and reversible workflow, and a clear, honest view of exactly what was converted, skipped, restored, or failed — all from a single dashboard. ### ✨ Why Choose WebP Converter & Image Optimizer? * **100% Local Processing** — Images are converted on your server with GD or ImageMagick. No external API calls, ever. * **Complete Privacy** — No user data is collected or transmitted. No third-party libraries bundled. * **Server Limit** — Convert unlimited images, subject to your server’s available resources and processing capacity. * **Fully Reversible** — Restore originals and remove generated WebP files at any time, per image or in bulk. * **Full Transparency** — A real-time dashboard tracks converted, pending, failed, and storage-saved totals. ### 🖼️ Features at a Glance * **Automatic Conversion on Upload** — New JPEG, PNG, and GIF uploads are converted to WebP automatically. No manual steps, no forgotten images. * **Bulk Conversion for Existing Media** — Optimize your entire Media Library in batches. The plugin prepares the image list, processes it in manageable chunks, and updates progress live in the admin UI — ideal for large libraries. * **Thumbnail Conversion Included** — Every WordPress-generated image size is converted alongside the original attachment, so all served variants benefit from WebP. * **Choice of Conversion Engine** — Use GD or ImageMagick, with automatic detection based on what’s available on your host and your selected settings. * **Optimized WebP Quality (Fixed 75%)** — The plugin converts every image at a balanced, fixed 75% WebP quality for an ideal size-to-fidelity trade-off. * **Media Library Integration** — Convert or restore any individual image directly from Media Library row actions and attachment-level controls. * **One-Click Restore** — Switch delivery back to your original media files and remove generated WebP files whenever you need to. * **REST API Access** — Built-in REST endpoints for stats, health checks, logs, settings, exports, and per-image actions — all protected with nonce and capability checks. ### 📊 Know Exactly What’s Happening Most optimization tools hide the details. WebP Converter & Image Optimizer gives you a dedicated dashboard with running totals for **converted, pending, failed, and storage saved**, plus a status table during bulk runs. You always know what’s been processed, what’s left, and how much space you’ve reclaimed. ### 🔒 Privacy & External Services This plugin does **not** contact any external servers. All image processing happens on your own server using PHP’s GD or ImageMagick extension. No third-party libraries are bundled, and no user data is collected or transmitted. What runs on your site stays on your site. ### 💡 Best For * Blogs, marketing sites, portfolios, and eCommerce stores that want fast, local WebP generation. * Site owners who need bulk conversion **without** relying on third-party optimization services. * Privacy-conscious teams who require all media processing to stay on their own infrastructure. * Anyone who wants clear visibility into image status and real storage savings. ### ⭐ Do More With WebP Converter & Image Optimizer Pro The free plugin is complete on its own — unlimited local conversions, bulk processing, and full restore. **[WebP Converter & Image Optimizer Pro](https://apps.spinxdigital.com)** is an optional add-on that installs alongside the free plugin and adds the following controls: **Settings** * **Conversion Quality** — set the exact WebP quality used for every conversion( the free plugin converts at a fixed 75%). * **Image-Type Filter** — choose which formats (JPEG / PNG / GIF) are actually converted to WebP. * **System Logs** — turn detailed conversion logging on or off, with a dedicated logs screen. * **Replace URLs in Post Content** — rewrite matching image URLs in post content to their WebP versions. * **Large Image Scaling** — override the WordPress big-image scaling threshold for uploads. **Dashboard & Bulk Convert** * **Clickable Stat Cards** — click any statistic (Total, Convertible, Converted, Pending, Failed, Already WebP, Unsupported) to open a dedicated, filtered Images screen. * **Images Screen** — browse images by status with pagination, and convert, restore, or retry any image individually, with the exact error shown for failed conversions. * **Image Comparison** — open a before/after slider for any converted image, with original size, WebP size, savings percentage, and dimensions. * **Pause / Resume** — pause and resume an in-progress bulk convert or bulk restore run. * **Smart Action Buttons** — bulk actions disable themselves automatically when there is nothing left to convert or restore. * **Restore All Original Images** — bulk-restore every converted image in a single action. **Media Offload / CDN** * **WP Offload Media compatibility** — convert and restore images that have already been offloaded to Amazon S3, Cloudflare R2, DigitalOcean Spaces, or Google Cloud Storage. * **Remote WebP delivery** — generated WebP files are uploaded alongside the original and served from your bucket or CDN, with a safe fallback to the original whenever a WebP is not yet offloaded. * **Compatibility Screen** — see the detected offload plugin, the active integration, the storage provider, and a recent sync-status sample. **SVG Support** * **Secure SVG Uploads** — allow SVG files in the Media Library, restricted to the user roles you choose. * **SVG Sanitization** — automatically strip scripts, event handlers, and external references from SVG files on upload. * **SVG Media Library Integration** — SVG thumbnails and previews in Grid and List views and in the attachment modal, with automatic dimension detection and featured- image support. Learn more about the Pro add-on: [https://apps.spinxdigital.com](https://apps.spinxdigital.com) ## Captures d’écran [⌊Dashboard overview with totals for converted, pending, failed, and storage saved⌉⌊ Dashboard overview with totals for converted, pending, failed, and storage saved⌉[ Dashboard overview with totals for converted, pending, failed, and storage saved [⌊Bulk Convert screen showing progress and the image status table⌉⌊Bulk Convert screen showing progress and the image status table⌉[ Bulk Convert screen showing progress and the image status table [⌊Settings screen with conversion engine and delivery controls⌉⌊Settings screen with conversion engine and delivery controls⌉[ Settings screen with conversion engine and delivery controls [⌊Media Library integration with per-image convert action⌉⌊Media Library integration with per-image convert action⌉[ Media Library integration with per-image convert action [⌊Media Library integration with per-image restore action⌉⌊Media Library integration with per-image restore action⌉[ Media Library integration with per-image restore action ## Installation #### WordPress Admin Method 1. In your WordPress admin, go to `Plugins > Add New`. 2. Search for `WebP Converter & Image Optimizer`. 3. Click `Install Now`, then `Activate`. 4. Open `WebP Optimizer` from the WordPress admin menu. #### FTP Method 1. Upload the `spinx-digital-image-converter` folder to the `/wp-content/plugins/` directory. 2. Activate the plugin through the `Plugins` screen in WordPress. 3. Open `WebP Optimizer` from the WordPress admin menu. #### After Activation 1. Review the conversion engine (GD or ImageMagick) and delivery settings. 2. Run `Bulk Convert` to process existing images, or leave auto-convert enabled to handle new uploads automatically. ## FAQ ### Which image types can this plugin convert? The plugin supports JPEG, PNG, and GIF input formats, and converts them all to WebP. WordPress-generated thumbnail sizes are converted automatically alongside the original. ### Does the plugin convert thumbnails too? Yes. The plugin converts the main attachment file and all WordPress-generated image sizes when available. ### Does this plugin send my images to an external service? No. All conversion and bulk-processing code is first-party and runs entirely on your own server using GD or ImageMagick. No external services are contacted and no third-party libraries are bundled. ### Can it convert images automatically on upload? Yes. Automatic conversion can be enabled so every newly uploaded JPEG, PNG, or GIF is converted to WebP the moment it’s added to your Media Library. ### What happens during bulk conversion? The plugin prepares the image list, processes images in batches, updates progress live in the admin UI, and records the results in the dashboard so you can track converted, pending, and failed images as it runs. ### Can I restore the original images? Yes. The plugin can remove the generated WebP files and switch delivery back to your original media files at any time — for a single image or in bulk. ### Does it support both ImageMagick and GD? Yes. The plugin supports both engines, with automatic detection depending on availability and your selected settings. ### Is there a Pro version? Yes. WebP Converter & Image Optimizer Pro is an optional add-on that runs alongside this free plugin and adds Conversion Quality control, an image-type filter, System Logs, Replace URLs in Post Content, Large Image Scaling, a filtered Images screen with per-image actions, before/after Image Comparison, Pause/Resume and Restore- All for bulk runs, media offload / CDN compatibility (Amazon S3, Cloudflare R2, DigitalOcean Spaces, Google Cloud Storage), and secure SVG uploads with sanitization. Details: [https://apps.spinxdigital.com](https://apps.spinxdigital.com) The free plugin remains fully functional without it — conversions are unlimited and nothing is time-limited or locked. ### How do I get support? When opening a support request, please include: * WordPress version * PHP version * Selected image engine (GD or ImageMagick) * Steps to reproduce the issue ## Avis Il n’y a aucun avis sur cette extension. ## Contributeurs & développeurs « WebP Converter & Image Optimizer » est un logiciel libre. Les personnes suivantes ont contribué à cette extension. Contributeurs * [ SPINX Digital ](https://profiles.wordpress.org/spinxdigitaldev/) [Traduisez « WebP Converter & Image Optimizer » dans votre langue.](https://translate.wordpress.org/projects/wp-plugins/spinx-digital-image-converter) ### Le développement vous intéresse ? [Parcourir le code](https://plugins.trac.wordpress.org/browser/spinx-digital-image-converter/), consulter le [SVN dépôt](https://plugins.svn.wordpress.org/spinx-digital-image-converter/), ou s’inscrire au [journal de développement](https://plugins.trac.wordpress.org/log/spinx-digital-image-converter/) par [RSS](https://plugins.trac.wordpress.org/log/spinx-digital-image-converter/?limit=100&mode=stop_on_copy&format=rss). ## Historique des changements #### 1.0.3 * New: optional server-level WebP delivery. Choose « Server rewrite (.htaccess)» in Settings to serve WebP files on the original image URL via rewrite rules in uploads/.htaccess (Apache/LiteSpeed), with automatic fallback to the original image for browsers without WebP support. * The server rewrite mode covers images referenced anywhere — page builders, theme templates, CSS — and keeps serving WebP even while the plugin is deactivated. The rules are removed when the plugin is deleted or the delivery method is switched back. * Restoring an image works exactly as before: the WebP file is deleted and the server automatically serves the original again. No content or database URLs are modified by this delivery mode. * Default behavior is unchanged: the existing PHP filter delivery remains the default. #### 1.0.2 * Performance improvement change. #### 1.0.1 * Plugin URI updated to the official WordPress.org plugin page. * Improved plugin architecture, portability, security, and performance. * Quality setting sanitization and native persistence improvements. * Removed the previous per-image conversion size limitation. * Improved file path handling and upload directory compatibility. * Optimized bulk conversion batch processing and registration. * Removed unused legacy AJAX endpoints and obsolete admin assets. * Removed PHP error-suppression operators from runtime code. * Added support for image-type conversion controls (JPEG, PNG, and GIF). * Added support for pause and resume functionality during bulk conversion processes. * Added smart bulk action controls with automatic button state management. * Improved pending image count accuracy based on enabled image types. * Added dashboard drill-down integration support for companion add-ons. * Improved dashboard statistics accuracy. * Add 75% fixed quality conversion. * Fixed duplicate WebP thumbnail generation and improved thumbnail reuse. * Added automatic cleanup of legacy duplicate WebP thumbnails. * Fixed restore operations to remove all generated WebP files and orphaned conversion data. * Improved image restoration reliability and cleanup processes. * Enhanced Images screen responsiveness for mobile and tablet devices. * Improved image management interface with touch-friendly action buttons and responsive layouts. #### 1.0.0 * Initial release. * Automatic WebP conversion for new uploads (JPEG, PNG, GIF). * Bulk conversion for existing Media Library images with batch processing. * Dashboard with converted, pending, failed, and storage-saved statistics. * Media Library row actions for per-image convert and restore. * GD and ImageMagick engine support with automatic detection. * REST endpoints for stats, health checks, settings, exports, and image actions. * Unified bulk job status model with bulk status endpoint. ## Méta * Version **1.0.3** * Last updated **il y a 6 jours** * Active installations **40+** * WordPress version ** 6.2 ou plus ** * Tested up to **7.1.3** * PHP version ** 8.0 ou plus ** * Language * [English (US)](https://wordpress.org/plugins/spinx-digital-image-converter/) * Tags * [compress images](https://fr-ca.wordpress.org/plugins/tags/compress-images/)[image optimization](https://fr-ca.wordpress.org/plugins/tags/image-optimization/) [webp](https://fr-ca.wordpress.org/plugins/tags/webp/)[webp convert](https://fr-ca.wordpress.org/plugins/tags/webp-convert/) * [Vue avancée](https://fr-ca.wordpress.org/plugins/spinx-digital-image-converter/advanced/) ## Notes No reviews have been submitted yet. [Your review](https://wordpress.org/support/plugin/spinx-digital-image-converter/reviews/#new-post) [See all reviews](https://wordpress.org/support/plugin/spinx-digital-image-converter/reviews/) ## Contributeurs * [ SPINX Digital ](https://profiles.wordpress.org/spinxdigitaldev/) ## Support Quelque chose à dire ? Besoin d’aide ? [Voir le forum de support](https://wordpress.org/support/plugin/spinx-digital-image-converter/)