A seamless carousel is one picture cut into slides so it continues as people swipe. Drop a wide image into the splitter above, pick a slide count from 2 to 20, and it cuts exact adjoining slices and pads each to 1080 × 1350 px so the joins stay aligned.
Drop an image here
or , or paste with Ctrl+V
JPG, PNG, WebP, GIF, BMP and AVIF, up to 50 MB.
Drag any line to move a cut. Tab to a line and use the arrow keys to nudge it one pixel, or hold shift for ten.
Vertical cuts give side-by-side pieces. Horizontal cuts stack them.
The tool picks the rows and columns that keep the pieces closest to square.
A shared strip on each seam, so the sheets can be trimmed and taped.
Each piece is resized to the size this page targets before it is saved.
Your image never leaves your device. Splitting runs in your browser with the Canvas API.
| Instagram carousel slide | 1080 × 1350 px (4:5) |
|---|---|
| Instagram portrait post | 1080 × 1350 px (4:5) |
| Instagram profile grid tile | 1080 × 1440 px (3:4) |
| From a 1080 × 1080 square | 3 pieces of 360 × 1080 px |
| From a 1080 × 1350 portrait | 3 pieces of 360 × 1350 px |
| From a 4000 × 3000 photo | 3 pieces of 1333 × 3000 px |
| Padded slide from a 1080 × 1080 square | 864 × 1080 px (4:5), 252 px of background each side |
| Padded slide from a 1080 × 1350 portrait | 1080 × 1350 px (4:5), 360 px of background each side |
| Padded slide from a 4000 × 3000 photo | 2400 × 3000 px (4:5), 534 px of background each side |
| Maximum slides | 20 in one carousel |
The effect only works if the slices line up exactly. A pixel of overlap and the join doubles up. A pixel of gap and a line appears. Cutting by eye in a design tool is where most attempts fall apart, because the cuts drift and nobody notices until the post is live.
So the cuts here are computed rather than eyeballed. Interior cut positions land on whole pixels, adjoining slices share an edge, and the last slice takes any remainder so nothing is dropped or duplicated. Rejoin the exported slides and you get the original back with no seam.
The second thing that breaks a seamless carousel is Instagram's own cropping. Every slide has to share one aspect ratio, and slides that do not match the first one get cropped to fit. That crop is uneven across slides, which is exactly what pulls a continuous picture out of alignment. Padding each slice onto an identical 1080 × 1350 px canvas removes the reason for the crop: a 1500 × 1000 slice becomes a 1500 × 1875 px slide, and so does every other slice.
A note on how it will actually look. Instagram shows a gap between slides as you swipe, so the picture reads as continuous rather than truly unbroken. Design for that: keep faces and important detail away from the joins, and let the background carry across them instead.
Up to 20 slides. Everything runs in your browser and nothing is uploaded.
A wide landscape cut into adjoining slides swipes as one scene. Pick the slide count from the source proportions: a very wide panorama needs more slides to keep each one from being a sliver. Pad every slice to 1080 × 1350 px so nothing shifts out of alignment.
Artwork drawn as one long piece works better as a seamless carousel than as separate images, because the continuation is the point. Keep the subject away from the cut lines and let background, sky or texture cross the joins, since that is where the gap between slides shows.
A wide brand banner split seamlessly gives a post that reads as one piece while still being swipeable. Check the first slide on its own before posting, because it is the one shown in feeds and it has to make sense without the rest of the picture behind it.
A timeline or a long headline can run across slides so reading it means swiping. Drag the cut lines so no word is split in half. The gap Instagram draws between slides makes a broken word obvious in a way it never is in the design file.
Cut one wide image into adjoining slices, pad each to the same aspect ratio, and post them in order. This page does the cutting and padding in one pass, with cuts computed on whole pixels so neighbouring slides share an exact edge rather than drifting apart.
Usually because they were cut by hand and the edges do not match, or because Instagram cropped some slides to match the aspect ratio of the first one. Computed cuts fix the first problem. Padding every slice to an identical canvas fixes the second.
The slices join exactly, but Instagram draws a gap between slides while you swipe, so it reads as continuous rather than unbroken. Design for that gap. Keep subjects away from the joins and let background carry across them, and the effect holds up.
Match it to how wide your source is. A 3:1 panorama works well over three or four slides. Something much wider needs more, or each slice ends up a sliver with padding either side. The limit is 20 slides, but very few pictures need that many.
Each slice is padded onto a 1080 × 1350 px canvas, which is the 4:5 portrait shape that fills the most screen without being cropped. The slice itself sits centred on that canvas with the background you pick, so its own proportions are preserved.
The slides are the same files either way, so the picture continues on both. The gap between slides differs a little between the app and the web view, which is another reason to keep detail away from the joins rather than relying on a perfect butt join.