How to merge images side by side or one above the other
Quick answer
To merge images, drop two or more into the Merge images tool, put them in order, choose side by side or stacked, and press Join pictures. They are scaled to a common height or width so nothing is stretched up.
Open Merge images side by side
Steps
- Open the Merge images tool and drop in two or more pictures.
- Put them in order with Up and Down, and remove any you do not want.
- Choose side by side or stacked, the gap between them and the background.
- Press Join pictures and download the result as PNG, JPG or WebP.
Matching sizes
By default every picture is scaled to the smallest common height (for a row) or width (for a column), so no picture is blown up and made blurry. If you would rather keep every picture at its own size, choose that option and they are centreed.
A gap and a background colour of white, black or transparent finish the look. Choose transparent with PNG or WebP.
Size limits
A result over 100 megapixels is refused with a clear message, because a phone could not hold it. Use fewer or smaller pictures in that case.
Before and after photos work well as a row of two. A tall stack of screenshots works well as a column.
Tips
Crop your pictures to similar shapes first. Pictures with the same height line up neatly in a row, and the tool then has nothing to shrink.
Use a small gap and a white background for a clean before and after. Use no gap for a seamless panorama made from pictures that were meant to join.
Common questions
How do I put two photos side by side?
Drop both in, choose side by side and press Join pictures.
Will my pictures be stretched?
No. They are scaled to a common height or width, keeping their proportions.
Can I change the order?
Yes. Use Up and Down on each picture in the list.
Written by Basic App Company. Last checked against the tool on 12 November 2026. The tool runs in your browser, so your pictures are not uploaded.