Title: Auto WebP & Alt Optimizer
Author: wodey
Published: <strong>5. januar, 2026</strong>
Last modified: 26. marts, 2026

---

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# Auto WebP & Alt Optimizer

 Af [wodey](https://profiles.wordpress.org/wodey/)

[Download](https://downloads.wordpress.org/plugin/auto-webp-alt-optimizer.zip)

 * [Detaljer](https://da.wordpress.org/plugins/auto-webp-alt-optimizer/#description)
 * [Vurderinger](https://da.wordpress.org/plugins/auto-webp-alt-optimizer/#reviews)
 *  [Installation](https://da.wordpress.org/plugins/auto-webp-alt-optimizer/#installation)
 * [Udvikling](https://da.wordpress.org/plugins/auto-webp-alt-optimizer/#developers)

 [Support](https://wordpress.org/support/plugin/auto-webp-alt-optimizer/)

## Beskrivelse

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.

## Anmeldelser

Der er ingen anmeldelser for denne widget.

## Bidragsydere & udviklere

“Auto WebP & Alt Optimizer” er open source-software. Følgende personer har bidraget
til dette plugin.

Bidragsydere

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

[Oversæt “Auto WebP & Alt Optimizer” til dit eget sprog.](https://translate.wordpress.org/projects/wp-plugins/auto-webp-alt-optimizer)

### Interesseret i udvikling?

[Gennemse koden](https://plugins.trac.wordpress.org/browser/auto-webp-alt-optimizer/),
tjek [SVN repository](https://plugins.svn.wordpress.org/auto-webp-alt-optimizer/),
eller abonner på [udviklerloggen](https://plugins.trac.wordpress.org/log/auto-webp-alt-optimizer/)
via [RSS](https://plugins.trac.wordpress.org/log/auto-webp-alt-optimizer/?limit=100&mode=stop_on_copy&format=rss).

## Ændringslog

#### 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.

## Meta

 *  Version **1.5**
 *  Senest opdateret **2 uger siden**
 *  Aktive installationer **10+**
 *  WordPress-version ** 6.0 eller højere **
 *  Testet op til **6.9.4**
 *  PHP-version ** 7.4 eller højere **
 *  Sprog
 * [English (US)](https://wordpress.org/plugins/auto-webp-alt-optimizer/)
 * Tags
 * [auto alt](https://da.wordpress.org/plugins/tags/auto-alt/)[image compression](https://da.wordpress.org/plugins/tags/image-compression/)
   [image optimizer](https://da.wordpress.org/plugins/tags/image-optimizer/)[seo](https://da.wordpress.org/plugins/tags/seo/)
   [webp](https://da.wordpress.org/plugins/tags/webp/)
 *  [Avanceret visning](https://da.wordpress.org/plugins/auto-webp-alt-optimizer/advanced/)

## Bedømmelser

Der er endnu ikke indsendt nogen anmeldelser.

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

[Se alle anmeldelser.](https://wordpress.org/support/plugin/auto-webp-alt-optimizer/reviews/)

## Bidragsydere

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

## Support

Har du noget at sige? Har du brug for hjælp?

 [Vis supportforum](https://wordpress.org/support/plugin/auto-webp-alt-optimizer/)