Descrição
Codcy Image Optimizer converts your existing JPEG and PNG images to WebP format in bulk — directly on your server, with no third-party API or paid subscription required.
WebP images are significantly smaller than JPEG and PNG files (typically 60–95% smaller), which leads to faster page loads, lower bandwidth usage, and better Core Web Vitals scores.
How it works:
- Scan — Analyzes your entire Media Library. Shows total image count, file size, and format breakdown before any changes are made.
- Review — You decide when to start. Nothing is changed until you click Start.
- Optimize — Converts images in batches of 20. Originals are backed up automatically.
- Report — A detailed summary shows converted count, space saved, average compression rate, and any errors.
Key features:
- Converts JPEG and PNG to WebP
- Automatic backup of original files to
uploads/codcy-image-optimizer/backup/ - Skips images where WebP would be larger than the original
- Fixes EXIF orientation automatically (Imagick)
- Resumes from where it left off if interrupted
- Does not alter image dimensions or crop ratio
- No external API, no account required
- Works with Imagick (preferred) or GD Library
What it does NOT do (intentionally):
- Does not resize images
- Does not process GIF files (may contain animation)
- Does not delete backups automatically
Imagens de tela
Plugin overview and server status 
Scan results — image count, total size, and format breakdown
Instalação
- Upload the plugin files to
/wp-content/plugins/codcy-image-optimizer/, or install the plugin directly through the WordPress Plugins screen. - Activate the plugin through the Plugins screen.
- Go to Media > Image Optimizer in your WordPress admin.
- Click Scan Media Library, review the results, then click Start Optimization.
FAQ
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Does this use an external service?
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No. All processing happens on your server using PHP’s Imagick or GD extension. No data is sent anywhere.
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Will my original images be deleted?
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No. Originals are copied to
uploads/codcy-image-optimizer/backup/before conversion. The backup directory is protected from public access. -
What if the optimization is interrupted?
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The plugin tracks progress in the database. If you stop mid-way, clicking Start Optimization again will resume from where it left off. Use Reset Progress only if you want to start fresh.
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Does it work with WooCommerce product images?
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Yes. All images in the WordPress Media Library are processed, including WooCommerce product images.
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What image quality setting does it use?
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WebP quality is set to 82/100 by default, which provides an excellent balance between file size and visual quality.
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Is Imagick required?
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No. The plugin works with GD Library as well, which is available on most hosting environments. Imagick is preferred because it also corrects EXIF orientation.
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Will this affect my image URLs?
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The plugin updates the attachment record in WordPress, so URLs served by WordPress will automatically point to the new WebP file. Note: CDN-served URLs may need cache clearing.
Avaliações
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Registro de alterações
1.6.0
- Fixed: JS and CSS are now loaded via wp_enqueue_script/wp_enqueue_style instead of inline output.
- Fixed: Removed load_plugin_textdomain() — WordPress.org handles translations automatically.
- Fixed: Removed directory assets (screenshots, icons) from plugin ZIP — these are uploaded via SVN separately.
1.5.1
- Added: Existing WebP images are now optimized too — images wider than 1200px are resized, images larger than 500KB are recompressed.
- Added: Original WebP files are backed up before reprocessing.
- Improved: WebP images already within limits (under 1200px and under 500KB) are skipped automatically.
1.1.0
- Added: 45-second timeout per batch — stuck requests are automatically skipped.
- Added: Auto-retry logic — after 3 consecutive failures, the stuck batch is force-skipped and processing continues.
- Added: Skip images that already have a .webp version on disk (previously optimized by any plugin).
- Improved: Batch processing is now more resilient on slow or shared hosting.
1.0.0
- Initial release.