Title: Stintlief WebP Converter Author: Stintlief Technologies Published: 13 januari 2026 Last modified: 13 januari 2026 --- Plugins zoeken ![](https://ps.w.org/stintlief-webp-converter/assets/icon-256x256.png?rev=3438442) # Stintlief WebP Converter Door [Stintlief Technologies](https://profiles.wordpress.org/stintlief/) [Download](https://downloads.wordpress.org/plugin/stintlief-webp-converter.1.1.0.zip) * [Details](https://nl.wordpress.org/plugins/stintlief-webp-converter/#description) * [Beoordelingen](https://nl.wordpress.org/plugins/stintlief-webp-converter/#reviews) * [Installatie](https://nl.wordpress.org/plugins/stintlief-webp-converter/#installation) * [Ontwikkeling](https://nl.wordpress.org/plugins/stintlief-webp-converter/#developers) [Ondersteuning](https://wordpress.org/support/plugin/stintlief-webp-converter/) ## Beschrijving Stintlief WebP Converter automatically converts uploaded JPEG, PNG, and GIF images to the modern WebP format, providing significant file size reductions while maintaining visual quality. The plugin includes smart features to ensure safety and reversibility. #### Key Features * **Automatic Conversion**: Converts images to WebP on upload without manual intervention * **Smart Size Comparison**: Only keeps WebP if it’s smaller than the original ( configurable) * **Safe Backups**: Optional automatic backup of original files for easy restoration * **One-Click Restore**: Restore original images from attachment edit screen * **Animated GIF Protection**: Automatically skips animated GIFs to preserve animation * **Configurable Settings**: Control max dimensions, compression quality, and behavior * **No External Services**: All processing happens on your server – no data sent elsewhere * **Performance Boost**: WebP images are typically 25-35% smaller than JPEG/PNG #### Privacy & Data Handling This plugin does not: * Send any data to external servers * Store personal user information * Track users or create logs (except standard WordPress debug logs when WP_DEBUG is enabled) * Use cookies or external APIs Backup files (if enabled) are stored locally on your server in the uploads directory and are not publicly exposed unless explicitly accessed. #### Supported Image Formats * JPEG (.jpg, .jpeg) * PNG (.png) * GIF (.gif) – static only, animated GIFs are preserved * HEIC/HEIF (if server supports) #### Requirements Your server must have one of the following: * Imagick extension with WebP support* GD extension with WebP support The plugin will display a notice if WebP support is not available. ### Privacy Policy This plugin does not collect, store, or transmit any personal data. All image processing happens locally on your WordPress server. Backup files (if enabled) are stored in your uploads directory and are not shared or transmitted to external services. If you have privacy requirements, you can disable the backup feature in Settings Media. ### Credits Developed by Stintlief Technologies with a focus on performance, safety, and WordPress best practices. ## Schermafbeeldingen [⌊Settings page in Media settings showing all configuration options⌉⌊Settings page in Media settings showing all configuration options⌉[ Settings page in Media settings showing all configuration options [⌊Restore button on attachment edit screen for converted WebP images⌉⌊Restore button on attachment edit screen for converted WebP images⌉[ Restore button on attachment edit screen for converted WebP images [⌊Admin notice showing plugin status and WebP support detection⌉⌊Admin notice showing plugin status and WebP support detection⌉[ Admin notice showing plugin status and WebP support detection ## Installatie 1. Upload the plugin files to `/wp-content/plugins/stintlief-webp-converter/`, or install through WordPress plugins screen 2. Activate the plugin through the ‘Plugins’ screen in WordPress 3. Go to Settings Media to configure conversion options 4. Enable “Convert uploaded images to WebP” checkbox 5. Adjust settings as needed (defaults are recommended) 6. Upload images and they will automatically convert ## FAQ ### Will this plugin convert my existing images? Currently, the plugin only converts images as they are uploaded. Bulk conversion of existing media library images will be added in a future version. ### What happens if WebP is larger than the original? By default, the plugin keeps the original file if the WebP version is larger. You can force WebP conversion regardless of size using the “Force WebP” option (not recommended). ### Can I restore the original image after conversion? Yes! If you enabled “Keep a backup” (enabled by default), you can restore the original from the attachment edit screen using the “Restore original file” button. ### Will this affect my site’s images in posts and pages? WordPress automatically uses the converted WebP files. If you restore an original, WordPress will regenerate thumbnails and update references. ### What about browser compatibility? Modern browsers (Chrome, Firefox, Edge, Safari 14+) support WebP. Older browsers fall back to WordPress’s standard image handling. The plugin doesn’t modify HTML markup. ### Does this work with other optimization plugins? Yes, this plugin focuses only on WebP conversion and works alongside caching and CDN plugins. Apply this plugin’s conversion first, then use other optimization tools. ### Are animated GIFs supported? Animated GIFs are automatically detected and skipped to preserve their animation. They will not be converted to static WebP images. ### Where are backups stored? Backups are stored in the same directory as the original file with `.stwp-backup` added to the filename. For example: `image.stwp-backup.jpg` ### What happens when I uninstall the plugin? Settings are removed, but converted images and backups remain on your server. This prevents accidental data loss. You can manually remove backup files if desired. ## Beoordelingen ![](https://secure.gravatar.com/avatar/7a0102b6eb53dd9ebc4fc0b559beb53d014eefb1f087a9696b4968bd583df8bb? s=60&d=retro&r=g) ### 󠀁[Excellent Plugin – Simple & Effective](https://wordpress.org/support/topic/excellent-plugin-simple-effective/)󠁿 [Dwayen Allen](https://profiles.wordpress.org/dwayenallen/) 13 januari 2026 I’ve been using Stintlief WebP Converter on a few WordPress sites and the experience has been very smooth so far. The plugin does exactly what it promises: converts images to WebP efficiently and helps improve page load speed without breaking existing layouts. Setup is straightforward, the UI is clean, and it works well with standard WordPress media uploads. What I liked most: Easy to configure, no unnecessary complexity Noticeable improvement in image performance Works reliably without conflicts Lightweight and focused on the core purpose If you’re looking for a simple and effective way to optimize images using WebP without dealing with heavy or bloated plugins, this is definitely worth trying. Great work by the developer. Looking forward to future updates 👍 [ Lees 1 beoordeling ](https://wordpress.org/support/plugin/stintlief-webp-converter/reviews/) ## Bijdragers & ontwikkelaars “Stintlief WebP Converter” is open source software. De volgende personen hebben bijgedragen aan deze plugin. Bijdragers * [ Stintlief Technologies ](https://profiles.wordpress.org/stintlief/) [Vertaal “Stintlief WebP Converter” in je eigen taal.](https://translate.wordpress.org/projects/wp-plugins/stintlief-webp-converter) ### Interesse in ontwikkeling? [Bekijk de code](https://plugins.trac.wordpress.org/browser/stintlief-webp-converter/), haal de [SVN repository](https://plugins.svn.wordpress.org/stintlief-webp-converter/) op, of abonneer je op het [ontwikkellog](https://plugins.trac.wordpress.org/log/stintlief-webp-converter/) via [RSS](https://plugins.trac.wordpress.org/log/stintlief-webp-converter/?limit=100&mode=stop_on_copy&format=rss). ## Changelog #### 1.1.0 – 2026-01-02 * Added option to force WebP conversion regardless of size * Improved backup file naming for better clarity * Minor bug fixes and performance improvements #### 1.0.0 – 2025-12-26 * Initial release * Automatic WebP conversion on image upload * Smart size comparison with fallback to original * Optional backup and restoration system * Animated GIF detection and preservation * Configurable dimensions and quality settings * WebP support detection and admin notices * Full internationalization support ## Meta * Versie **1.1.0** * Laatst geüpdatet **9 maanden geleden** * Actieve installaties **10+** * WordPress versie ** 5.8 of nieuwer ** * Getest t/m **6.9.10** * PHP versie ** 7.4 of nieuwer ** * Taal * [English (US)](https://wordpress.org/plugins/stintlief-webp-converter/) * Tags * [converter](https://nl.wordpress.org/plugins/tags/converter/)[images](https://nl.wordpress.org/plugins/tags/images/) [optimization](https://nl.wordpress.org/plugins/tags/optimization/)[performance](https://nl.wordpress.org/plugins/tags/performance/) [webp](https://nl.wordpress.org/plugins/tags/webp/) * [Geavanceerde weergave](https://nl.wordpress.org/plugins/stintlief-webp-converter/advanced/) ## Waarderingen 5 van 5 sterren. * [ 1 5 ster beoordeling ](https://wordpress.org/support/plugin/stintlief-webp-converter/reviews/?filter=5) * [ 0 4 sterren beoordelingen ](https://wordpress.org/support/plugin/stintlief-webp-converter/reviews/?filter=4) * [ 0 3 sterren beoordelingen ](https://wordpress.org/support/plugin/stintlief-webp-converter/reviews/?filter=3) * [ 0 2 sterren beoordelingen ](https://wordpress.org/support/plugin/stintlief-webp-converter/reviews/?filter=2) * [ 0 1 sterren beoordelingen ](https://wordpress.org/support/plugin/stintlief-webp-converter/reviews/?filter=1) [Je beoordeling](https://wordpress.org/support/plugin/stintlief-webp-converter/reviews/#new-post) [Bekijk alle beoordelingen](https://wordpress.org/support/plugin/stintlief-webp-converter/reviews/) ## Bijdragers * [ Stintlief Technologies ](https://profiles.wordpress.org/stintlief/) ## Ondersteuning Iets te melden? Hulp nodig? [Het supportforum bekijken](https://wordpress.org/support/plugin/stintlief-webp-converter/) ## Doneren Wil je de groei van deze plugin ondersteunen? [ Doneer aan deze plugin ](https://buymeacoffee.com/stintlief)