Edit
Combine images into one
Put images next to each other or stack them into a single picture - a before and after, a set of screenshots, a strip of photos. You choose the order, the gap between them and the background colour. Images of different sizes are scaled so their shared edge lines up, and the scaling only ever goes down: enlarging a small image to match a large one makes it soft and makes the file bigger for being worse. Turn that off and the smaller image sits centred in the band instead, which is honest about the difference.
How to combine images into one
- Drop in two or more images. Drop more in later to add them to the end.
- Choose side by side or stacked, and set the order.
- Set the gap, the padding and the background colour.
- Download the combined image.
Supported formats
This tool accepts JPG, PNG, WebP, GIF, BMP and AVIF files. Everything is decoded by your own browser, so the formats available depend on what your browser can open - which for HEIC in particular varies between Safari and other browsers.
Frequently asked questions
My images are different sizes. What happens?
By default the larger ones are scaled down so the shared edge matches - heights for a side-by-side, widths for a stack - which is almost always what people mean. The scaling is only ever downwards, because enlarging the smaller image to match would make it soft and the file larger at the same time. If you turn matching off, each image keeps its own size and the shorter ones sit centred in the band, with the background colour showing around them.
Why is the result a PNG?
Because a combined image usually has flat areas of background between the pictures, and PNG stores those perfectly at almost no cost while JPEG puts visible noise around every hard edge. If the result is a photograph collage and the file is larger than you want, run it through the compressor afterwards and pick JPEG there.
Can I combine more than two?
Yes, as many as your device can hold in one canvas. The tool checks the size of the finished canvas against what your browser can actually allocate before it draws anything, so a set that is too large is refused with a message rather than crashing the tab halfway through.
Are my images uploaded?
No. Each image is decoded and drawn onto a canvas by your browser on your device, and the combined result is read back out of that same canvas. Nothing leaves the tab.
Related tools
- Contact Sheet MakerLay a folder of images out in a grid with even spacing - a contact sheet, a collage or a sprite sheet.
- Image SplitterCut one image into rows and columns and download the tiles as a ZIP.
- Add Border to ImagePut a border, padding, rounded corners or a circular crop on an image, or square the canvas for a marketplace listing.
- Image CompressorCompress JPG, PNG and WebP images in your browser.
Looking for something else? Browse all ImageUtility tools.