Carousels are the most engaging post format
A carousel post is a single Instagram post that contains up to 20 slides the viewer swipes through. They get more reach than single images because Instagram will surface the post a second time in the feed if a viewer didn't engage with the first slide - effectively giving each carousel two chances to land. They get more dwell time because a swipe gesture is more involving than a scroll. And they let creators stretch a single visual idea across multiple frames.
The most striking carousel format is the panorama carousel: a single wide image - a city skyline, a long illustration, an editorial spread - sliced into N square or vertical tiles that line up seamlessly when the viewer swipes left to right. Instagram's carousel UI hides the seams between slides, so a well-cropped panorama feels like a single image you swipe through.
What this tool does
Pick a wide image, choose how many slides you want (anywhere from 2 to 20), and the tool slices it into equal vertical strips that you can post as a single carousel. The slices are square (1080 × 1080) or 4 : 5 (1080 × 1350) depending on which aspect ratio you choose - both fit Instagram's carousel constraints.
The output is a ZIP of JPEG files numbered in posting order. Drop them into Instagram's carousel post UI in that order and the panorama lines up.
Tips for a good panorama carousel
- Lead with the strongest visual. The first slide is what people see in the feed and what decides whether they swipe. Crop the panorama so the most arresting third of the image is in slide 1.
- End with a payoff. The last slide is the one viewers see right before deciding to like, comment, or move on. Put your call to action, your logo, or the most surprising part of the image there.
- Plan for the seams. Instagram does show a thin gap between slides during the swipe transition. Avoid placing important faces or text right on a seam - shift the crop so seams fall in low-information areas (sky, water, plain background).
Privacy
The image is processed entirely in your browser. Slices are cut on a
<canvas> element, the resulting tiles are packed into a ZIP
locally, and the ZIP downloads to your machine. No upload, no
account, no server-side processing.