Square Thumbnails PRO will be available soon. All features currently in the free version will remain free and unrestricted.

Square Thumbnails transforms your images into perfect square thumbnails without cropping or distorting them. Instead of cutting off important parts of your images, the plugin fits them entirely within a square frame, similar to CSS background-size: contain. Ideal for WooCommerce shops, portfolios, and image galleries where consistency is essential, but you don’t want to lose parts of your images.

Key Features

No Cropping: Preserves the entire image within a square frame
Background Options: Transparent or colored backgrounds (custom or auto-detected)
Format Support: Works with JPEG, PNG, GIF, WebP, AVIF, and BMP
Quality Control: Adjustable JPEG quality settings (60-100%)
Selective Processing: Choose which image sizes to convert to squares
Small Image Handling: Special options for handling small images
Individual image regeneration: Easily regenerate only one image from image details page
Bulk Regeneration Option (included): Easily update existing thumbnails with progress tracking. No need to use other plugins to regenerate images
WooCommerce Ready: Perfect for product galleries with uniform thumbnails
Newsletter Integration: Add newsletter subscription forms with Mailchimp integration

Perfect for online stores where you want all products to have uniform square thumbnails while maintaining complete product visibility.

I’ve successfully implemented the two requested features for Square Thumbnails version 2.3.0:

JPEG Quality Control

Added a new setting to control JPEG compression quality (60-100%, default 90%)
This allows users to balance between image quality and file size
The setting is applied when saving JPEG images after processing

Selective Size Processing

Added the ability to choose which image sizes should be processed as square thumbnails
Displays all registered image sizes with their dimensions
WooCommerce sizes are highlighted in purple and shown first for easy identification
Added quick selector buttons:
- Select All
- Select None
- Select WooCommerce Only
- Select WordPress Default
If no sizes are selected, all sizes will be processed (backward compatible)

Additional improvements:
Enhanced the settings page layout with two new sections
Updated JavaScript to handle the new settings
Added proper validation and sanitization for new options
Improved logging to show which sizes are being skipped
Created comprehensive changelog and documentation

The plugin now offers much more granular control over thumbnail generation, which is especially useful for
WooCommerce stores that want to optimize performance by only processing the sizes they actually use.

NEW FEATURES

Small Image Handling (v2.2.0)

Purpose: Prevent WooCommerce products from disappearing when using small images

Features:

– Minimum Image Size setting: Set custom threshold (50-1000 pixels)
– Small Image Action options:
– Skip processing (preserve original)
– Process anyway (center on square canvas)
– Show error message
– Default: Skip images smaller than 200×200 pixels

How to use:
1. Go to Media > Square Thumbnails
2. Find “Small Image Handling” section
3. Set minimum size and choose action for small images
4. Save settings

JPEG Quality Control (v2.3.0)

Purpose: Balance between image quality and file size

Features:

– Adjustable JPEG quality (60-100%)
– Default: 90%
– Applies to all JPEG thumbnails generated

How to use:
1. Go to Media > Square Thumbnails
2. Find “JPEG Quality” section
3. Adjust slider between 60-100%
4. Save settings

Selective Size Processing (v2.3.0)

Purpose: Process only specific image sizes, perfect for WooCommerce optimization

Features:

– Choose which image sizes to make square
– Quick selectors:
– Select All
– Select None
– Select WooCommerce Only
– Select WordPress Default
– WooCommerce sizes highlighted in purple

How to use:
1. Go to Media > Square Thumbnails
2. Find “Selective Size Processing” section
3. Check/uncheck sizes to process
4. Use quick selectors for common combinations
5. Save settings

Bulk Thumbnail Regeneration (v2.3.0)

Purpose: Regenerate existing thumbnails with current settings

Features:

– Progress bar with real-time updates
– Batch processing (5 images at a time)
– Force regeneration option
– Selective size regeneration

How to use:
1. Go to Media > Square Thumbnails
2. Find “Regenerate Thumbnails” section
3. Select sizes to regenerate
4. Check “Force regeneration” if needed
5. Click “Start Regeneration”
6. Watch progress bar until complete

Media Library Integration (v2.3.0)

Purpose: Regenerate thumbnails directly from Media Library

Features:

– Individual image regeneration button
– Bulk action for multiple images
– Real-time feedback
– Admin notices for results

How to use:

For single images:
1. Go to Media > Library
2. Click on any image
3. Find “Square Thumbnails” section
4. Click “Regenerate Square Thumbnails”
5. Wait for success message

For multiple images:
1. Go to Media > Library
2. Select images using checkboxes
3. Choose “Regenerate Square Thumbnails” from Bulk Actions
4. Click “Apply”
5. See admin notice with results

KEY IMPROVEMENTS

Performance: Only processes selected sizes, reducing server load
WooCommerce Compatibility: Prevents product display issues with small images
User Experience: Better feedback with progress bars and admin notices
Flexibility: Granular control over which sizes to process
Convenience: Regenerate thumbnails without leaving Media Library

Features

Creates square thumbnails without cropping
Aligns images horizontally and vertically within the square frame
Supports custom background colors or auto-detection from image
Option for transparent backgrounds (PNG, WebP, AVIF)
Creates all intermediate sizes, even for smaller images
Apply to original images or just thumbnails
Support for modern image formats (WebP, AVIF)
Small image handling options to prevent WooCommerce display issues
Configurable minimum image size settings

Perfect for

WooCommerce product galleries
Portfolio websites
Image galleries
Any site requiring consistent square thumbnails