Merge Images
Combine up to 12 images in a horizontal row, vertical strip or grid. Change the order, spacing and background without cropping your photos.
Preparing sample…
How to Merge Images
Add your photos, select a layout, then use Move up and Move down to set the order. Set spacing and a background color, and download the merged image.
Merge Photos Into One Image
Merging photos means laying several images onto a single canvas and saving the result as one file. The layout decides the direction: Horizontal places each photo left to right, Vertical stacks them top to bottom, and Grid fills row by row. Nothing is composited on top of anything else — each photo gets its own cell, with no overlap and no layer to align.
People use this tool to merge photos, combine images or join pictures. Whether you call it a merge tool or a photo joiner, and they all mean the same job: one image out of several. Common uses are a before-and-after pair, a sequence of steps in one frame, product angles shown side by side, and chat screenshots stitched into one long strip.
Side by Side, Stacked, or a Grid
- Horizontal — for before-and-after pairs, a row of steps, or several product shots. Reads best wide and short.
- Vertical — for a long strip: messages, a receipt, a list people scroll through in one file.
- Grid — from three or four images upward, where a single row would squeeze each photo too narrow to see.
Two settings decide whether the result reads as one picture or as several. Spacing at 0 makes the photos touch and read as a continuous image, which suits a stitched panorama or a deliberately split layout. A visible gap keeps each frame separate, which is usually what a comparison needs. Background fills the gaps and any empty area inside a cell, so set it before exporting whenever the photos have different aspect ratios.
Why Your Photos Are Not Cropped
Each complete image is fitted inside a square cell rather than trimmed to fill it, so leftover space becomes your background colour instead of the edges of your photo disappearing. That is a deliberate trade-off: cropping edge to edge gives a tidier result but silently removes part of every photo, which is not acceptable when one of them is a screenshot with information near the border, or a comparison where both frames have to stay whole.
Output is capped at 4,000 pixels per side and 12 megapixels. A tall vertical strip hits that limit sooner than a horizontal row, which is why stacking many photos can produce a file smaller than the width you asked for — the dimensions under the preview are the real ones.
Set the Order Before You Download
The numbered image list controls the final arrangement. Use Move up and Move down to change an image's position, or Remove to leave it out. In a horizontal layout, list order runs from left to right; in a vertical layout, it runs from top to bottom. In a grid, the next row begins after the current row is filled.
The sample contains an original portrait and a sepia version of the same photo to demonstrate a comparison. Try a sample replaces the current collection. For your own merge, add the images you want and inspect the list before saving. If one image needs mirroring first, use Image Flipper, download it and add the edited version here.
Output Size and Export Limits
The merged image uses a solid background; this tool does not export a transparent collage or overlap images as layers.
Very large gaps are reduced when needed to keep all cells inside the output. The actual dimensions and file size appear beside Download.
Each uploaded photo uses a working copy capped at 1,600 pixels per side, so requesting a larger canvas cannot recover detail missing from those copies. If your completed collage must fit a maximum file size, download it and use Image Quality Reducer to choose a target in KB.
Merging Images Without Uploading Them
The merge runs on your own machine: photos are read into the browser, laid out on an offscreen canvas and exported locally, so nothing is sent to a server. That matters more here than on most tools, because the images people merge tend to be screenshots of messages, receipts, dashboards and documents — exactly the frames you would rather not hand to a stranger's server.
Merge Images FAQ
Will this crop my photos?
No. Each complete image fits inside a square cell. Extra space uses your selected background color.
Why is my output smaller than the requested width?
Tall layouts are scaled down to stay within 4,000 pixels per side and 12 megapixels. The actual dimensions appear below the preview.
Can I merge transparent images?
Yes, but this layout fills transparent areas with your chosen background. Use a dedicated layer editor if you need transparent overlap.
Can I merge more than 12 images?
Not in one pass — the limit is 12 images per merge. To go beyond that, merge the first 12, then open the result together with the remaining photos as a new merge. Keep the same background colour and spacing so the two halves line up.
What is the difference between merging images and a collage?
A merge places photos in non-overlapping cells on a fixed grid, so nothing covers anything and the order is predictable. A collage lets frames overlap, rotate and sit at any position. If you want tidy alignment and a repeatable result, merge; if you want free placement, use a collage or layer editor.
How do I combine two photos side by side?
Add both, choose the Horizontal layout, set spacing to a few pixels and pick a background colour, then download. The two photos end up in one file with equal height and their original proportions intact.