Instagram Carousel Splitter

Drop a wide image into the splitter above and it cuts a row of carousel slides, then pads each one onto a 1080 × 1350 px canvas so Instagram shows what you exported. Set anything from 2 to 20 slides. Files come out numbered in swipe order, left to right.

Drop an image here

or , or paste with Ctrl+V

JPG, PNG, WebP, GIF, BMP and AVIF, up to 50 MB.

Split by
Grid

Your image never leaves your device. Splitting runs in your browser with the Canvas API.

What the padding looks like

WhiteBlurred edgesBlack
Each slice is 360 × 1080 px and sits on a canvas of 864 × 1080 px, so Instagram shows it whole instead of cutting the top and bottom off. Pick the background that suits the picture; blur is the one that hides the join on a photo.

Sizes for a carousel split

Piece sizes computed by the splitter library. Platform dimensions from the site spec table, last verified 7 September 2026.
Instagram carousel slide1080 × 1350 px (4:5)
Instagram portrait post1080 × 1350 px (4:5)
Instagram profile grid tile1080 × 1440 px (3:4)
From a 1080 × 1080 square3 pieces of 360 × 1080 px
From a 1080 × 1350 portrait3 pieces of 360 × 1350 px
From a 4000 × 3000 photo3 pieces of 1333 × 3000 px
Padded slide from a 1080 × 1080 square864 × 1080 px (4:5), 252 px of background each side
Padded slide from a 1080 × 1350 portrait1080 × 1350 px (4:5), 360 px of background each side
Padded slide from a 4000 × 3000 photo2400 × 3000 px (4:5), 534 px of background each side
Maximum slides20 in one carousel

A carousel is the only Instagram layout that keeps its shape. Post nine tiles as a grid and your next post breaks it. Post the same picture as a carousel and it stays intact for as long as the post exists.

The thing that goes wrong is cropping. A carousel forces every slide to share one aspect ratio, and it crops mismatched slides to match the first one. Cut a wide photo into three tall slices and you have three slides in a shape Instagram does not want, so it trims them and your composition loses its edges.

Padding solves it before it happens. Each slice is centred on a 1080 × 1350 px canvas with a background you choose: white, black, a colour, or the blurred edge of the slice itself. A 1200 × 900 slice lands on a 1200 × 1500 px canvas with a band above and below it. Every slide is then the same 4:5 shape Instagram is happiest with, and the crop never fires because there is nothing left to crop.

The slide count runs from 2 to 20, which is the carousel maximum. Three to six is where most wide photos land, because past that each slice gets narrow enough that the padding dominates the frame.

Slides are numbered in swipe order. Upload them left to right so the picture reads correctly, and check the first slide on its own, since that is the one that appears in feeds.

The cutting and the padding both happen in your browser.

What this split is used for

Wide photo as a full-height carousel

A landscape shot posted as a single square is tiny. Cut into slides and padded to 1080 × 1350 px, the same photo fills the screen top to bottom and continues as people swipe. Three or four slides suits most wide photos without the slices getting too narrow.

Multi-slide graphic or explainer

Long-form graphics built in a design tool export as one tall or wide file. Cutting them into slides gives you a carousel where each point is shown at full size. Drag the cut lines to fall between sections rather than through them, so no slide starts mid-sentence.

Stop Instagram cropping your artwork

Anything that is not close to 4:5 gets trimmed when it goes into a carousel. Padding puts your full frame on a 4:5 canvas with a background of your choice, so the whole design is visible. A blurred edge background reads better than white on photographic work.

Reuse a print or web design

Posters, spreads and web headers are almost never 4:5. Rather than redesigning them, split into slides and pad. The design keeps its proportions, the carousel keeps its consistency, and you get a version for Instagram without opening the original file again.

Tips

  • Pad every slide to the same shape, because Instagram crops mismatched slides to match the first one.
  • Upload slides left to right so the picture reads in swipe order.
  • The first slide is what appears in feeds, so make sure it works on its own.
  • Three to six slides suits most wide photos; past that the slices get narrow and the padding dominates.
  • A blurred edge background hides the padding better than flat white on photographic work.

Frequently asked questions

How do I split an image into an Instagram carousel?

Drop a wide image into the splitter above and choose how many slides you want, from 2 to 20. It cuts the image into that many vertical slices and pads each one to 1080 × 1350 px. Download the set and upload the slides in order, leftmost first.

What size should Instagram carousel slides be?

1080 × 1350 px, which is the 4:5 portrait size. It fills more of the screen than a square without being cropped, and it is what this tool pads every slide to. Square at 1080 × 1080 px also works, but it takes up noticeably less room in a feed.

Why does Instagram crop my carousel slides?

Because every slide in a carousel has to share one aspect ratio, and Instagram crops the others to match the first slide. If your slices are wider or narrower than the first one, they get trimmed. Padding all of them to the same 4:5 canvas prevents it.

How many slides can an Instagram carousel have?

Up to 20 in a single post. This splitter goes to the same limit. Most wide photos work best between three and six slides, because beyond that each slice becomes narrow enough that the padded background takes up more of the frame than the picture does.

In what order do I upload carousel slides?

Left to right, which is the order the files are numbered in. The first slide you add is the one shown in feeds and the one everything else is cropped to match, so check it works as a standalone image before you upload the rest.

Can I choose the padding colour?

Yes. White, black, a custom colour, or a blurred copy of the slice's own edges. Blurred edges disappear into photographic work. Flat white or black suits graphics and type. The choice is per export, so you can try one, look at it and change it.