Want a big-photo grid on your profile? Split one photo into 3x1, 3x2 or 3x3 equal pieces and download each piece by number. Your photo never leaves your device — everything happens in your browser.
The photo is first cropped square from the centre (then to the grid ratio), so each piece looks like an Instagram square post.
Posting order: first post the last piece of the bottom row (bottom-right), then work backwards to the first piece — so the photo appears the right way up on your profile.
The photo is cropped from the centre to fit the grid ratio. For a better result, use a square or wide photo to start with, so no important part is cut off.
New posts appear at the top of an Instagram grid, so post in reverse: first number 9 (bottom-right), last number 1 (top-left). Then the full photo will appear the right way up on your profile.
No. Splitting happens inside your browser — no server, no upload.