How to merge several images into one
Want to show two photos side by side for a before-and-after comparison, stitch consecutive chat screenshots into one long image, or combine several product shots into a single post? This tool places your images next to each other horizontally or stacks them vertically in one file, scaling them automatically so their edges line up.
Processing happens in your browser, so nothing is uploaded, and you can merge two or more images of different sizes without resizing them first.
How to use it
- Drag two or more images onto the upload box, or click it and select several at once. You can also add images in batches; they are appended to the list.
- Check the file list below the box. The list order is the order in the final image, and the close button next to each file removes it.
- Choose a Direction: "Horizontal (side by side)" or "Vertical (stacked)".
- Click Merge & download; the merged picture downloads as merged.jpg.
How sizes are handled
- Horizontal: every image is scaled to the height of the tallest one, keeping its own aspect ratio, then placed left to right.
- Vertical: every image is scaled to the width of the widest one, keeping its proportions, then stacked top to bottom.
- No gaps or borders: images sit directly against each other.
- More than two: you can merge many images, but large numbers produce a very big picture.
Practical examples
- A horizontal before-and-after of a renovation, workout progress or design revision.
- Three consecutive chat screenshots stacked into one tall image.
- Two or three colour variants of a product shown side by side for social media.
- A long receipt photographed in parts, joined into one image to send.
Tips and notes
- Order before uploading: there is no drag-to-reorder, so add images in the order you want, or remove one and add it again to move it to the end.
- Similar sizes look best: a small image merged with a very large one is enlarged to match and may look soft.
- Watch the final size: merging high-resolution camera photos creates a very large image; resize first if it is for the web.
- JPG output: PNG transparency is not kept in the merged image.
To do the opposite and cut an image into pieces use Split image, to collect pictures into a document instead try Multiple images to PDF, and to even out sizes before merging use Resize image.