Instagram Grid Maker

A grid post spreads one big picture across several Instagram posts so your profile shows it whole; a panorama carousel spreads a wide photo across slides that join up as people swipe. This tool cuts your picture into the right number of 1080-pixel posts, crops it to the exact overall shape first, and names the files in the order to post them. Since Instagram's profile grid now shows posts as 3:4 rectangles, it also handles 4:5 and square posts so they still line up on the grid. Nothing is uploaded.

How to use this tool

1. Choose your picture.
2. Pick a profile grid (3 columns × 1–10 rows) or a panorama carousel (2–20 slides).
3. Choose the post shape; 3:4 fills the profile grid exactly.
4. Choose which part of the picture to keep if it has to be cropped.
5. Download the ZIP and post the files in number order, starting with 01.

Formula

whole picture = 3 × v + 2m wide by rows × H tall, where v = visible 3:4 width of a post and m = (1080 − v) ÷ 2

For 3:4 posts (1080 × 1440) v = 1080 and m = 0, so posts sit side by side. For 4:5 posts the grid shows the centre 1012.5 px, for squares 810 px; with “line up” on, each post carries an m-pixel strip of its neighbour that the grid hides. A carousel is simply N slides of 1080 px side by side.

Example

A 4000 × 3000 photo made into a 3 × 3 grid of 3:4 posts needs a 3240 × 4320 picture (3:4 overall), so the tool keeps a 2250 × 3000 area from the centre and cuts nine 1080 × 1440 posts. File 01 is the bottom-right post and 09 the top-left; post 01 first and 09 last.