Merge images into one

How to merge images

1. Add your photosChoose 2 to 20 JPG, PNG, WebP, AVIF, GIF or BMP files (up to 10 on a phone). Drag the rows, or use the arrow buttons, to put them in order.
2. Pick a layoutChoose Horizontal, Vertical or Grid, then set the gap, the outer padding, the background color and how images of different sizes line up.
3. Merge and downloadCheck the preview and the result size, press Merge, then download a single PNG, JPG or WebP file.

What does it mean to merge images?

To merge images is to place several pictures on one canvas and save them as a single new file. It is also called combining images, joining photos or stitching pictures. The usual goals are a before and after pair, a set of product photos in one row, or a tall strip of screenshots.

This tool draws every photo on a new canvas whose size it calculates first. It never stretches a picture, because each one keeps its own proportions. The originals are not changed, and the merged file is created only on your device.

Combine photos side by side, stacked or in a grid

Horizontal puts the photos in one row, which is the quickest way to combine two photos side by side. Vertical stacks them in one column, which suits screenshots and long comparisons. Grid fills rows of up to 6 columns, so 4 photos become a tidy 2 by 2 block.

Reorder the photos before you merge. Drag a row to a new place, or use the move buttons, which also work with the keyboard and a screen reader.

• Gap, from 0 to 100 px, is the space between photos. Outer padding adds the same kind of space around the whole picture.
• Background is white, black, any color you pick, or transparent when you save PNG or WebP.
• JPG cannot be transparent, so transparent areas take the background color.

Photos of different sizes and orientations

Fit to the largest scales every photo to match the biggest one, so a row has one height and a column has one width. Same height (or width) matches the smallest photo instead, so nothing is enlarged and nothing gets soft. Original sizes changes nothing, and the Align setting decides whether shorter photos sit at the start, the center or the end of the space.

Phone photos often carry a rotation flag. The tool applies it first, so a portrait photo is placed upright and keeps its proportions.

Large photos and what happens at the limit

The result size is worked out before anything is drawn and is shown under the options. On a computer the merged picture can have up to 64 million pixels and 16,384 px on its longest side. On a phone the limits are 24 million pixels and 8,192 px. If your layout is bigger, the tool scales the whole result down and tells you, instead of failing halfway.

Photos are scaled with Lanczos resampling, the same method as the Resize image tool, which keeps edges crisp when shrinking. Animated GIFs contribute their first frame only. HEIC photos from an iPhone are not accepted here, so convert them first with the HEIC to JPG tool.

Merge photos on iPhone, Android and desktop

On a phone, open this page, tap Choose files and select photos from your library. Because the merge uses the memory of your device, a phone accepts up to 10 photos. To make the file smaller afterwards, use Compress image, or put the result into a PDF with Image to PDF.

Questions