How to use the Instagram Carousel Splitter for Panoramas and Wide Images
- Choose a wide image. Drop in a panorama or any wide picture. It is read on your device and never uploaded.
- Set panels and ratio. Pick 2 to 10 panels at 1:1 or 4:5. Output is 1080 pixels wide: 1080 x 1080 or 1080 x 1350.
- Tune the cut. Move the focus if the image has to be trimmed, and add overlap if you want a strip repeated on two slides to guide the swipe.
- Check the seams. The seam preview puts the right edge of each panel next to the left edge of the next, so you can see where a face or a line gets cut.
- Download. Save a single panel as JPEG or PNG, or all panels in one zip. The Instagram checks show item count, ratio and file size.
How the split works
What the splitter does
Panels are equal in size and share one ratio. The tool fits the biggest row of panels into the image, so a wide image fills the row and a tall one is trimmed from the top and bottom. With overlap, neighbouring panels share a strip of the stated share of a panel width, and the row covers the image width as far as the shared strips allow.
Every panel is drawn from the original pixels to a 1080 pixel wide canvas, then exported as JPEG at high quality, or PNG if you prefer. The zip uses the plain stored format with a CRC-32 per file, which every zip reader opens.
Rules and sources
From the Instagram Graph API documentation, checked October 2026: a carousel is limited to 10 images, videos or a mix; images must be within 4:5 to 1.91:1; image files are 8 MB at most; JPEG is the only image format the API accepts. The Instagram checks on the page apply exactly these four rules.
Instagram does not publish a minimum pixel size in the pages we could fetch, so none is claimed here. The common 1080 pixel width is a widely used target and is described as approximate.
Limitations
This tool splits one image into panels. It does not resize a single image to a network's size, which the Social Image Resizer does. It does not retouch or blend seams, and very large images can be limited by your browser's canvas size.
Frequently asked questions
How do I split a panorama for an Instagram carousel?
Decide how many slides you want, then cut the image into that many equal-width panels at one ratio, so every slide shares the same shape. This tool does the cut: choose 2 to 10 panels at 1:1 or 4:5, and it exports each as a 1080 pixel wide file in order, ready to upload in the same order.
What size should my wide image be?
For no trimming and no enlarging, make it as wide as 1080 times the panel count: 3240 x 1080 for three square panels, or 4320 x 1350 for four 4:5 panels. Smaller images still work but are enlarged, and the tool shows the enlargement so you can judge the softness. Larger images are scaled down.
How many images can an Instagram carousel have?
A carousel holds up to 10 images, videos or a mix, per the Instagram Graph API content publishing docs. This tool stops at 10 panels for that reason. Threads allows 20 items in a carousel, but this splitter targets Instagram shapes.
What aspect ratios does Instagram accept for carousel images?
The Instagram Graph API accepts images from 4:5 to 1.91:1. Both 1:1 and 4:5 are inside that range, so every panel passes. 4:5 gives each slide the most vertical room in the feed.
What does the overlap setting do?
With overlap, the right side of one panel is repeated on the left side of the next. It means a person swiping sees an object that is partly in both slides, which can make the join feel intentional. Leave it at zero for a true split in which panels sit edge to edge.
Is my image uploaded anywhere?
No. The file is drawn on a canvas in your browser and each panel is exported on your device. The zip is built in the page without any server call or library.