Merge Images
Merge Images combines two or more images side by side or stacked into a single PNG on an HTML canvas in your browser, with gap, alignment and background options.
PNG, JPG, WebP, HEIC · two or more · never uploaded
At a glance
- Accepts
- Two or more JPG, PNG, WebP or HEIC images
- Outputs
- One merged PNG, downloaded or copied to the clipboard
- Where it runs
- Entirely in your browser, on your device
- What leaves your device
- Nothing - the file never leaves your device
- Limits
- Up to 16,384 px on the longest side (larger results are scaled down); otherwise bounded by device memory
- Account
- Not required - there is no sign-up
- Price
- Free, with no watermark and no usage cap
- Made by
- Visrut
- Last updated
- 11 November 2026
Merge Images joins two or more pictures into one, side by side or stacked. It is handy for before and after shots, long chats made of several screenshots, or a quick comparison. Match the heights or widths, add a gap and a border, pick a transparent or coloured background, and drag to reorder. It all runs in your browser.
How to use it
- Choose two or more images, drop them here, or paste them.
- Pick Side by side or Stacked, and how the sizes should match.
- Drag the thumbnails, or use the arrows, to set the order.
- Set the gap, border and background.
- Download the merged PNG or copy it to your clipboard.
Frequently asked questions
Are my images uploaded?
No. The images are combined on a canvas in your browser and the result is saved from this tab. Nothing goes to a server.
Can I put screenshots one under another?
Yes. Choose Stacked and Match widest, and each screenshot is scaled to the same width so the edges line up. Add a gap and a background colour if you want a divider between them.
What does Original sizes do?
Each image keeps its own pixel size. Smaller ones are lined up to the top, middle or bottom (or left, centre, right when stacked), and the empty space shows the background.
Why is the result a PNG?
PNG keeps screenshots sharp and supports a transparent background. If you need a smaller file, run the result through an image compressor or converter.
Is there a size limit?
The merged image can be up to 16,384 pixels on its longest side, a browser canvas limit. Bigger results are scaled down to fit. Very large batches can run out of memory on older phones.