WebP Converter for Joomla

WebP Converter is a lightweight Joomla system plugin that automatically converts newly uploaded PNG and JPG images to WebP format. By reducing image file sizes at upload time, it improves page speed, Core Web Vitals, and overall website performance without changing your existing workflow.

The plugin integrates directly with Joomla’s Media Manager and works reliably in subfolders, making it a safe and practical solution for both new and existing websites.

Key Benefits

• Significant image size reduction
• WebP images are typically 30–80% smaller than PNG and JPG, resulting in faster page loads and reduced bandwidth usage.
• Improved Core Web Vitals and SEO
• Smaller images help improve metrics such as LCP and PageSpeed scores, contributing to better search engine visibility.
• Fully automatic workflow
• Upload images as usual via the Media Manager. Conversion happens automatically in the background.
• Safe for live websites
• Only new uploads are processed. Existing images are never modified.
• Works in Media Manager subfolders
• Images uploaded to any folder inside /images are converted correctly.
• Joomla-native and lightweight
• No external services, no cron jobs, no database tables, and no performance overhead.
• Compatible with Joomla 5 and Joomla 6
• Built using modern Joomla best practices and tested on current Joomla versions.

Main Features

Automatic WebP Conversion
PNG and JPG images are converted to WebP immediately after upload via the Joomla Media Manager.

Quality Control
Set the WebP quality level to balance compression and visual quality according to your project needs.

Original File Handling
Choose whether to keep the original PNG or JPG file, or remove it after successful conversion.

Folder-Aware Processing
The plugin respects Joomla’s folder structure and creates WebP files in the same directory as the original image.

Server-Based Conversion
Uses native PHP image libraries for reliable, fast conversion without third-party dependencies.

Minimal Footprint
No logs, no background processes, and no unnecessary complexity. The plugin runs only when an image is uploaded.

Ideal For

• Joomla websites that need faster loading images without manual optimization
• Agencies managing multiple Joomla projects
• Performance-focused sites aiming to improve Core Web Vitals
• Developers who want a clean, predictable, Joomla-native solution