Online Image Comparison Tool - Compare Two Images Side by Side

How to Compare Two Images and Find Visual Changes?

1. Upload your images by dropping them into the boxes or using the file chooser
2. Click Compare to see the differences using any of these methods:
   • Visual Diff: Shows differences highlighted in customizable colors
   • Slider View: Compare images with an interactive slider
   • Fade View: Smoothly transition between images
   • Difference View: See exact pixel differences

Advanced Features

• Customize diff highlight colors
• Adjust transparency levels
• Multiple comparison algorithms (Movement, Flat, Intensity based)
• Auto-resize option for different sized images
• Support for many image formats including RAW camera files
• Export comparison results as PNG
• Save comparisons online to share with others

Common Use Cases

• Spot differences between similar photos
• Compare design iterations
• Check for unwanted image changes
• Quality control for image processing
• Before/After comparisons

Technical Details

• All processing happens in your browser - images stay private
• Supports PNG, JPG, WEBP, GIF, TIFF and many RAW formats
• Convert unsupported formats automatically to PNG
• No file size limits for local comparison
• Precise pixel-level difference detection
• Anti-aliasing and color difference controls

Tips for Better Results

1. Use similar sized images for best results
2. Enable "Resize to same size" for different sized images
3. Adjust transparency to better see subtle changes
4. Try different comparison algorithms for your specific needs
5. Use the slider view for detailed side-by-side inspection