Merge images
Stack screenshots into one long image or put photos side by side — with a live preview, merged on your own device.
Drop any file here
or
🔒 Files never leave your device — everything runs in your browser.
How it works
Add images in any order — the arrows rearrange them, and the preview shows the exact result as you work: every image keeps its aspect ratio, scaled to the first image's width when stacking (or height when side by side), so nothing is stretched, cropped, or padded. Same-device screenshots need no scaling at all and stitch pixel-for-pixel. The result downloads as one JPG or PNG — Auto keeps all-JPG sets as JPG and everything else as PNG — and HEIC, TIFF, and SVG inputs are all welcome: formats your browser can't display inline appear as numbered placeholders in the preview, and merge just fine. Very large sets are refused honestly rather than silently producing a blank image — browsers cap how big one canvas can be. The whole job runs in your browser; nothing is uploaded.
Next step
If the goal is one document rather than one picture, JPG to PDF and PNG to PDF stack the same images as pages instead. A stitched image is large by construction — Compress JPEG or PNG to WebP bring the size down, and WebP to JPG converts back for places that reject WebP.
FAQ
How do I combine several screenshots into one long image?
Drop the screenshots, keep “Stack vertically”, and put them in order with the arrows — the preview shows exactly what you’ll get. Hit Merge and download one tall PNG. Screenshots from the same device line up with no scaling at all.
What happens when my images have different sizes?
Every image keeps its aspect ratio and is scaled to match the FIRST image — same width when stacking, same height side by side — so there are no gaps and nothing is stretched or cropped.
Which format does the merged image come out in?
Auto picks JPG only when every input really is a JPG (checked by the file’s bytes, not its name); anything else — PNGs, screenshots, HEIC photos — comes out as PNG so text stays sharp and transparency survives. The JPG and PNG chips override that; note that choosing JPG flattens any transparent areas onto white, because JPG has no transparency.
Can I merge animated GIFs?
No — a stitched image would silently keep only the first frame of the animation, and this site doesn’t do silent. Convert the GIF to a video, or use a still image.
Can I get the images as a PDF instead?
Yes — that’s its own tool: JPG to PDF puts each image on its own page of one PDF, which is usually what documents want.
Are my images uploaded anywhere?
No. The whole merge runs in your browser on your own device — no upload, no server, no queue.