Make your WordPress site blazing fast with Pixengine - The intelligent image converter and optimizer.
Pixengine automatically converts all uploaded images to WebP and AVIF formats with intelligent optimization, reducing file sizes by 40-70% while maintaining visual quality. Perfect for improving page speed, SEO rankings, and user experience.
Key Features
Automatic Conversion
- Auto-convert JPG and PNG uploads to WebP or AVIF
- Choose WebP only, AVIF only, or both formats
- Smart resizing for images over configurable width
- Maintains aspect ratio automatically
- Preserves transparency for PNG images
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Converts all WordPress thumbnail sizes
AVIF Support (New in 1.1.0)
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Next-generation AVIF format with superior compression
- Up to 50% smaller files than WebP
- Automatic browser detection and fallback
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Requires PHP 8.1+ or Imagick with AVIF support
Superior Compression
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Uses Imagick (when available) for best compression
- Strips unnecessary metadata (EXIF, profiles)
- Optimized settings for 40-70% file size reduction
- Fallback to GD library with optimization
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Separate quality controls for WebP and AVIF
Lazy Loading (New in 1.1.0)
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Native browser lazy loading support
- Exclude first N images (above-the-fold)
- Improves initial page load performance
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Works with post content, thumbnails, and attachments
Responsive Images (New in 1.1.0)
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Automatic srcset optimization
- Optional picture element wrapping
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Format fallback: AVIF > WebP > Original
Caching Integration (New in 1.1.0)
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Configurable cache headers via .htaccess
- Browser caching for repeat visits
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Immutable cache-control for static images
Bulk Conversion
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Convert existing media library images
- Keeps original files for compatibility
- Automatic .htaccess configuration
- Browser-based optimized image delivery
- Progress tracking with detailed logging
Perfect For
- E-commerce - Faster product page loading
- Photographers - Portfolio optimization
- Bloggers - Quick page loads, better SEO
- News Sites - Handle high-volume image uploads
- Agencies - Client site optimization
- Developers - Performance-first development
Performance Benefits
- 40-70% smaller file sizes compared to JPG/PNG
- Faster page load times - Better Core Web Vitals
- Improved SEO rankings - Page speed is a ranking factor
- Reduced bandwidth costs - Smaller files = less data
- Better mobile experience - Faster loads on slow connections
- Green hosting - Lower carbon footprint
How It Works
New Uploads (Automatic):
- Upload JPG or PNG image
- Plugin resizes if width > 1920px (configurable)
- Converts to WebP with optimized compression
- Strips metadata for smaller files
- Original deleted (saves storage)
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All thumbnails converted to WebP
Existing Images (Bulk):
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Click "Start Bulk Conversion"
- Converts all JPG/PNG in media library
- Keeps originals for compatibility
- Updates .htaccess for automatic WebP delivery
- Browsers that support WebP get optimized images
- Older browsers get original JPG/PNG
Technical Details
Compression Methods:
- Primary: Imagick with method 6 (best compression)
- Fallback: GD with alpha channel preservation
- Automatic metadata stripping
- Configurable quality settings (1-100)
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Smart resizing with LANCZOS filtering
WebP Options (Imagick):
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Method 6 compression (highest quality)
- Lossy compression for better file sizes
- Alpha quality 100 (perfect transparency)
- Auto-filter optimization
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Lossless option available
Browser Compatibility:
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Automatic .htaccess rules for serving WebP
- Fallback to original JPG/PNG for older browsers
- Supports Chrome, Firefox, Edge, Safari 14+, Opera
- Mobile browsers fully supported
Privacy & Performance
- No external API calls
- All processing done on your server
- No data collection or tracking
- Minimal performance impact
- Asynchronous bulk conversion
- Progress tracking without page reload