About this tool
Combine two or more images into one. Stack them vertically or lay them side by side, with an optional colored border in between. It's free, and it runs right in your browser, so your photos never leave your device.
When your images aren't the same size, this tool scales each one down to match the narrowest width in the set (for a vertical stack) or the shortest height (for a side-by-side layout), keeping each image's own aspect ratio intact. That avoids upscaling any image past its original resolution, and it's why the edges of a finished merge always line up cleanly instead of leaving ragged gaps.
Frequently asked questions
Why did my images get resized when I merged them?
When your images aren't the same size, this tool scales each one down to match the narrowest width in the set (for a vertical stack) or the shortest height (for a side-by-side layout), keeping each image's own aspect ratio intact. That avoids upscaling any image past its original resolution, and it's why the edges of a finished merge always line up cleanly instead of leaving ragged gaps.
What's the difference between vertical and side-by-side layout?
Vertical stacks your images top to bottom, matching them to the narrowest image's width. Side-by-side arranges them left to right, matching them to the shortest image's height. Pick whichever orientation fits how you want the final image to read.
Can I reorder the images before merging?
Yes -- use the up and down arrows next to each file in the list to move it earlier or later in the sequence. The merged image updates automatically to reflect the new order.
Is there a limit to how many images I can merge?
There's no hard cap built into the tool, but every image is processed in your browser's own memory, so a very large batch of high-resolution photos could slow things down depending on your device. For most everyday uses -- combining a handful of screenshots or photos -- it runs instantly.