merge images
☞ runs entirely in your browser — nothing is uploadedDrop your images here
or click to browse — PNG, JPG or WebP, up to 20 files
Preview
OneImageTool
Free Image Tools
merge images
Put several pictures into one file — one under another, side by side, or in a grid.
or click to browse — PNG, JPG or WebP, up to 20 files
Preview
one canvas, several pictures
Merging is laying pictures out on one canvas and saving the result. This tool gives you the four arrangements that cover almost every reason to do it: a column for a long screenshot or a chat thread, a row for a before-and-after pair, a grid for a contact sheet, and stacked for putting images on top of one another. The order in the list is the order on the canvas, and the arrows move any file up or down.
Pictures rarely arrive the same size, so there are two ways to handle that. Keeping the original sizes centres each image and leaves background around the narrow ones, which is what you want for a collage. Scaling to match resizes every image to the widest — or the tallest, in a row — so screenshots taken on different devices line up into one seamless strip with no ragged edges.
three steps
Drop in PNG, JPG or WebP files, up to twenty at a time. They are decoded in your browser, so a screenshot of a private conversation or a photo of a document stays on your machine.
Pick a layout, put the files in the order you want, and set the spacing. The preview shows the finished picture, so you can see immediately whether a grid or a column reads better.
The spacing and any gaps around a smaller image take the background colour. PNG can leave that background transparent; JPG cannot, so it always gets a solid colour. Then download the merged file.
quick answers
PNG, JPG and WebP, in any mix — you can merge a PNG screenshot with a JPG photo. The output is a single PNG or JPG, whichever you choose. HEIC files from an iPhone are not accepted; convert them first.
Yes. The list is the order on the canvas, top to bottom for a column, left to right for a row and a grid. The arrows next to each file move it, and the preview updates as you go.
With original sizes they are centred and the difference shows as background on either side. Choose Scale to match and every image is resized to the widest one, which is what you want when joining screenshots into a single strip.
PNG output is lossless — the pixels are copied as they are. JPG re-encodes at high quality, which is fine for photographs and less kind to sharp text. Scaling a small image up to match a larger one softens it, as any enlargement does.
With PNG, yes — tick the box and the spacing stays clear. JPG has no transparency at all, so it is always filled with the colour you pick; leaving it unset would come out black rather than white.
Browsers cap how large a canvas can be, and twenty tall photos in a column can pass that cap. Rather than hand you a blank file, the export is scaled down to fit and the size line says so.
Twenty per merge. That is a limit on comfort rather than a technical wall — beyond it the merged canvas gets big enough that the browser starts scaling the result down anyway.
No, but the PDF section has its own tools: Merge PDF joins documents, and Image to PDF turns a set of pictures into a document with one image per page.
No. Everything happens in the browser and the merged file is written straight to your downloads. There is no server in this tool to send a picture to.
Yes — free with no watermark.