Drop one wide image, pick 1:1 or 4:5, and download slides that line up edge to edge in the carousel. Runs in your browser; your image never leaves your device.
Instagram carousels accept 1:1 squares and 4:5 portraits. 4:5 fills more of the screen and is what most brands post; every slide in one carousel must share the same ratio, which is why this tool cuts them all from a single strip.
Only the first slide shows on your profile grid, and since January 2026 the grid crops every thumbnail to 3:4. Check slide one in our grid crop checker before you post.
Splitting one panorama is a one-off job. If you post carousels regularly, PlanBatch generates branded slides from a spreadsheet, one row per post, and schedules the whole batch to publish itself.
Templates, brand kits, a calendar, and automatic publishing to Instagram, Facebook and LinkedIn.