Instagram carousel generator

Instagram shows feed images up to 4:5, so 1080x1350 is the biggest footprint you can take without a crop. Square still works, it just gives away height. Anything taller than 4:5 gets cut in the feed even though it looked right while you were making it.

One carousel holds ten items, and every item is shown at the ratio of the first one. Portrait first slide plus a square fourth slide means the fourth gets padded or trimmed to match. This generator locks the whole deck to one canvas so that cannot happen.

Captions go to 2,200 characters and roughly the first 125 show before the "more" link. Put the hook in that first line. The rest of the caption is for people you have already convinced.

Design the cover as a thumbnail. It has to be legible in the grid and in a fast feed, so a few large words beat a full sentence.

Put a swipe cue on the cover, then leave each slide slightly unfinished at the bottom. The reader should always sense there is one more thing.

Keep your handle and logo small, in the same corner, on every slide. That way it survives a screenshot without fighting the content.