About this plugin
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.