Title: Only WebP Uploads
Author: rbonfil
Published: <strong>9. Januar 2026</strong>
Last modified: 10. Januar 2026

---

Plugins suchen

![](https://ps.w.org/only-webp-uploads/assets/banner-772x250.png?rev=3435586)

![](https://ps.w.org/only-webp-uploads/assets/icon-256x256.png?rev=3435586)

# Only WebP Uploads

 Von [rbonfil](https://profiles.wordpress.org/rbonfil/)

[Herunterladen](https://downloads.wordpress.org/plugin/only-webp-uploads.1.0.1.zip)

 * [Details](https://de.wordpress.org/plugins/only-webp-uploads/#description)
 * [Rezensionen](https://de.wordpress.org/plugins/only-webp-uploads/#reviews)
 *  [Installation](https://de.wordpress.org/plugins/only-webp-uploads/#installation)
 * [Entwicklung](https://de.wordpress.org/plugins/only-webp-uploads/#developers)

 [Support](https://wordpress.org/support/plugin/only-webp-uploads/)

## Beschreibung

Only WebP Uploads automatically converts your image uploads (JPG, PNG, GIF) to WebP
format. It handles all image sizes generated by WordPress, ensuring your site serves
optimized, modern image formats.

Features:
 * **Automatic Conversion:** Converts images immediately upon upload. ***
Space Saving:** Replaces original files with lighter WebP versions. * **Database
Integration:** Updates WordPress metadata so the Media Library recognizes the file
as WebP. * **Bulk Conversion:** Includes a tool to scan and convert existing images
in your library. * **WP-CLI Support:** Manage conversions via command line using`
wp onlywebp`. * **Smart Filename Sanitization:** Automatically cleans filenames (
e.g., `mañana.jpg` -> `manana.webp`). For non-Latin names (e.g., Japanese), it generates
a secure unique ID to ensure compatibility. * **Security:** Checks for Imagick support
and sanitizes filenames.

## Screenshots

 * [[
 * General Settings / Plugin Configuration.
 * [[
 * Bulk Optimization Tool / Media Library view.

## Installation

 1. Upload the plugin files to the `/wp-content/plugins/only-webp-uploads` directory,
    or install the plugin through the WordPress plugins screen directly.
 2. Activate the plugin through the ‚Plugins‘ screen in WordPress.
 3. Use the Settings->Only WebP Uploads screen to configure your preferences.

## FAQ

### Does this modify my original images?

Yes, this plugin is designed to **replace** your original uploads with WebP versions
to save storage space.

### Requirements?

You need the PHP `Imagick` extension installed and enabled on your server, with 
WebP support.

## Rezensionen

Für dieses Plugin gibt es keine Rezensionen.

## Mitwirkende und Entwickler

„Only WebP Uploads“ ist Open-Source-Software. Folgende Menschen haben an diesem 
Plugin mitgewirkt:

Mitwirkende

 *   [ rbonfil ](https://profiles.wordpress.org/rbonfil/)

[Übersetze „Only WebP Uploads“ in deine Sprache.](https://translate.wordpress.org/projects/wp-plugins/only-webp-uploads)

### Interessiert an der Entwicklung?

[Durchstöbere den Code](https://plugins.trac.wordpress.org/browser/only-webp-uploads/),
sieh dir das [SVN-Repository](https://plugins.svn.wordpress.org/only-webp-uploads/)
an oder abonniere das [Entwicklungsprotokoll](https://plugins.trac.wordpress.org/log/only-webp-uploads/)
per [RSS](https://plugins.trac.wordpress.org/log/only-webp-uploads/?limit=100&mode=stop_on_copy&format=rss).

## Änderungsprotokoll

#### 1.0.1

 * New: Added „Strict Filename Sanitization“ toggle.
 * New: Rewritten UI with toggle switches and quality slider.
 * Fix: Prevent file overwrite when uploading files with the same name.

#### 1.0.0

 * Initial launch on WordPress.org

#### 0.4.1

 * Fix: Resolved issues reported by WordPress Plugin Review Team.
 * Fix: Properly enqueued admin scripts and styles.
 * Fix: Scoped sanitization filter to upload process only.
 * Fix: Corrected Text Domain to match plugin slug.

#### 0.4

 * Production release

= 0.3.9 (RC)=
 * Fix: Translation corrections. * New: Added „Credits tab“.

= 0.3.8 (BETA)=
 * Security: Improved output escaping in admin dashboard. * Compliance:
Standardized readme.txt and headers.

#### 0.3.7 (BETA)

 * Refactor: Renamed internal references from `wua` to `onlywebp`.
 * Fix: Resolved text domain mismatch issues.
 * Security: Added warnings for bulk content replacement.

#### 0.3.6 (BETA)

 * Fix: Resolved duplicated image issues.

#### 0.3.5 (BETA)

 * Initial release.

#### 0.2.0 (ALFA)

 * Base structure.

= 0.1.0 (PRE-ALFA)=
 * Idea and concept.

## Meta

 *  Version **1.0.1**
 *  Zuletzt aktualisiert **vor 5 Monaten**
 *  Aktive Installationen **20+**
 *  WordPress-Version ** 5.8 oder höher **
 *  Getestet bis **6.9.4**
 *  PHP-Version ** 7.4 oder höher **
 *  Sprache
 * [English (US)](https://wordpress.org/plugins/only-webp-uploads/)
 * Schlagwörter
 * [conversion](https://de.wordpress.org/plugins/tags/conversion/)[images](https://de.wordpress.org/plugins/tags/images/)
   [optimization](https://de.wordpress.org/plugins/tags/optimization/)[upload](https://de.wordpress.org/plugins/tags/upload/)
   [webp](https://de.wordpress.org/plugins/tags/webp/)
 *  [Erweiterte Ansicht](https://de.wordpress.org/plugins/only-webp-uploads/advanced/)

## Bewertungen

Es wurden noch keine Rezensionen eingereicht.

[Your review](https://wordpress.org/support/plugin/only-webp-uploads/reviews/#new-post)

[Alle Rezensionen anzeigen](https://wordpress.org/support/plugin/only-webp-uploads/reviews/)

## Mitwirkende

 *   [ rbonfil ](https://profiles.wordpress.org/rbonfil/)

## Support

Möchtest du etwas mitteilen? Brauchst du Unterstützung?

 [Support-Forum anzeigen](https://wordpress.org/support/plugin/only-webp-uploads/)