Splitting a wide photo for Instagram: carousel or grid

First, decide which one you are making

A swipe carousel is one post. The viewer swipes and your wide photo scrolls past like a window moving across it. Everyone who opens the post sees it. This is the easy one.

A grid panorama is several separate posts whose thumbnails sit next to each other on your profile page. Nobody sees it in the feed — it only exists for people who visit your profile. It looks impressive and it is far more fragile.

People use the words interchangeably and then wonder why the instructions they followed did not work. They are different jobs.

The swipe carousel

1. Pick the ratio before you cut. 4:5 portrait fills the most screen, so each slide lands bigger as someone scrolls. 1:1 works and is more forgiving of a photo that is not very tall.
2. Cut into 2 to 4 pieces. More slides is not more impact — it is more chances for someone to stop swiping.
3. Look at where the cuts land. A seam through a face or the main subject is the one mistake a viewer actually notices. Move the frame before you cut, not after.
4. Upload in order, left to right. The order you add them is the order people swipe.

Why the seam disappears: an exact cut leaves no overlap and no gap, so the two halves of an edge meet perfectly as the viewer swipes. Every re-save between the cut and the upload risks softening that edge — export losslessly and upload that file.

The grid panorama, and the order trap

Your profile grid puts your newest post top-left and works right and down from there. So if you post the pieces of your panorama in reading order — left piece first — the grid shows them reversed, because the left piece ends up as the oldest of the three.

The fix is to post backwards:

• Post the rightmost piece first.
• Then the middle.
• Then the leftmost piece last.

When you are done, the newest post is the left piece, so it sits top-left and the row reads correctly.

Two more things the grid will do to you

Rows are three tiles wide. A three-piece panorama only lands on one clean row if your existing post count is already a multiple of three. If it is not, the panorama straddles two rows and the effect is gone. Count your posts first.

Every tile is centre-cropped to 3:4. The grid is a different shape from the feed, so each piece loses a slice off its sides — about 3% each side if you cut at 4:5, 12.5% if you cut at 1:1. Keep the important part of each piece away from its own edges. The numbers are in the photo sizes guide.

And once it is up, it is up: a grid panorama is only intact while those three posts stay adjacent and in order. One new post pushes the whole row along.

Cut it here

Image Splitter does the carousel and grid cut: pick a ratio, pick the piece count, drag the frame to centre your subject, download the pieces as lossless PNG. It runs in your browser and your photo is never uploaded anywhere.