Carousel Splitter
Turn a wide panoramic image into a series of square slides, ready to publish as an Instagram carousel. Slicing happens in your browser, with no quality loss and no file upload.
Carousel Splitter
Split a wide image into 1080×1350px slides for your Instagram carousel.
Number of slides
3 slides — 3240 × 1350px total
Click or drag an image here
JPG, PNG, WEBP — auto-cropped to fit perfectly
For best results, use these dimensions:
2 slides
2160 × 1350px
3 slides
3240 × 1350px
4 slides
4320 × 1350px
5 slides
5400 × 1350px
6 slides
6480 × 1350px
7 slides
7560 × 1350px
Don't have the right dimensions?
No worries! Upload any image and our tool will automatically center-crop it to create the perfect carousel.
How to use this tool
- 1
Upload your panorama
Pick an image that is clearly wider than it is tall: a horizontal infographic, a panoramic photo, a timeline.
- 2
Choose the number of slides
The tool calculates the split to produce 1:1 slides. Instagram accepts up to 20 slides per carousel, but engagement drops sharply beyond six or seven.
- 3
Download and publish in order
Unlike the profile grid, carousels publish in natural reading order: slide 1 first. Select the files in order when creating the post.
The panoramic carousel: a format that holds attention
Carousels generate the most time spent on Instagram because they require an action: swiping. A sliced panoramic visual leans into that mechanic, giving the impression of dragging one large image rather than flicking between separate photos.
The format also works in your favour algorithmically: every swipe is a signal of interest. And Instagram can re-show a carousel to a follower who didn't finish it, displaying a different slide — a second chance no other format offers.
The constraint is visual continuity. Each slide has to stand alone and make you want the next one. An image sliced at random produces awkward slides; an image designed from the start to be sliced produces a smooth sequence.
Getting the panoramic carousel right
- Plan the split at design time: place a point of interest at the centre of each future slide.
- Let an element bleed from one slide into the next — that's what creates the sense of continuity.
- Stick to six slides: beyond that, completion rates collapse.
- The first slide decides everything: it's the only one visible in the feed.
- Add an arrow or visual cue on the early slides to signal that there's more to swipe.
Frequently asked questions
How many slides does Instagram allow?
Up to 20 per post. But completion rates fall sharply after six or seven slides: a short, dense carousel beats a long one that's only half viewed.
In what order should I publish the slides?
Natural order: slide 1 first. That's the opposite of the profile grid, which publishes in reverse.
Which output format should I use?
1:1 square (1080 × 1080) is safest, since it displays correctly everywhere. The 4:5 portrait format takes up more feed space but complicates panoramic slicing.
Can I split a video?
No, this tool handles images only. For video you'll need editing software.
Other free tools
Publish across all your networks from one place
These tools solve one task at a time. HelloSocials handles the whole workflow: scheduling, publishing and analytics across Instagram, LinkedIn, Twitter/X and Pinterest.
Start for free