How do I change which image appears on top?
Reorder the thumbnails. Later images are drawn above earlier images in the overlay stack.
Image Overlay Tool
Stack ordered images on one canvas, then tune fit, alignment, background, and opacity for watermark, texture, comparison, or composite layouts.
Private local processing · no account required
Add two or more images to see the canvas preview.
Frequently asked questions
Can I control overlay transparency?
Yes. Layer opacity applies to every image above the first base image and updates in the live preview.
Does overlay mode alter my original files?
No. The browser decodes copies for the Canvas preview and leaves the original files unchanged.