Combine Images Into One
Stack screenshots or lay out a contact sheet.
Every tool runs entirely in your browser. Your files are never uploaded to a server.
Images are scaled to a common width, then placed in order onto one canvas. Aspect ratios are preserved, so nothing is stretched — a narrower image is scaled up rather than squashed to fit.
How to use Combine Images
- Add your images. They are combined in the order you add them.
- Choose the arrangement. Stacked suits screenshots; a grid suits a contact sheet.
- Download the sheet. One file containing all of them.
About combining images into one
Combining images is placement arithmetic with one decision that determines whether the result looks deliberate: what to do when the inputs are different sizes, which they nearly always are. Scaling each to a common width and preserving aspect ratio is the only arrangement that reads as a sheet rather than as a mistake. The alternative — placing each at its native size — produces ragged edges that look like an error even when every image is individually correct. Stretching to a common width and height is worse still, because the distortion is small enough to look like bad photography rather than bad software. Vertical stacking is the common case and it is what screenshot workflows want: several captures of a long page joined into one image that can be shared as a single attachment. Horizontal suits before-and-after comparisons. A grid is a contact sheet, useful for showing options at a glance. Two details make the output look considered rather than assembled. A short image within a row is centred rather than pinned to the top, since a row of items aligned along their tops with different heights reads as broken. And the gap is filled with a painted background even in formats that support transparency, because a gap is part of the composition and a transparent stripe running through a sheet is essentially never the intent. The size cap applies after placement rather than before, so the layout is computed at full resolution and only the finished sheet is scaled — which keeps the proportions exact regardless of the cap.
Frequently asked questions
What happens if my images are different sizes?
In what order are they combined?
Why cap the finished size?
Can I combine images into a PDF instead?
Does the gap colour matter?
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