Free online tool
Image splitter
Cut one photo into equal pieces for an Instagram grid, a carousel or a printed poster. Download every piece in one ZIP file.
Works in your browserPhoto never uploadedNo sign-upFree
Grid
Save as
For an Instagram grid, post piece 1 first and the last piece last; with "posting order" on, the numbers match.
Questions
Good to know
Is my photo uploaded?
No. The photo is cut inside your browser and never leaves your device.
Why square pieces?
Instagram's profile grid shows square tiles, so square pieces line up perfectly. Turn it off to keep the whole photo with no edges cut.

Photo tools on your phone
15 photo tools in one free Android app: resize, cut out, scan and more. Works offline.