One picture across your profile
An Instagram profile shows posts in rows of three, so a single image split into a grid three columns wide looks like one large picture when someone visits your page. Brands use it to launch a product or a collection, artists to show a full illustration, photographers to present a panorama, and event organizers to announce a date with a poster that fills the screen.
A 3×1 grid fills a single row, which is a lighter way to try the effect, and a 3×3 grid fills three rows for maximum impact.
Square pieces, cropped at the center
On this page the option "Crop to square first" is turned on, so the image is cropped at the center before it is cut, keeping the area where every piece comes out square. That way the pieces fit the grid without bands or distortion. If the important part of your image is not in the center, crop it yourself first with Crop image and then split it here.
Before downloading, the tool shows how many pieces you will get and their size in pixels. Start from a large image so each piece stays sharp.
The posting order
The pieces are numbered from left to right and from top to bottom: in a 3×3 grid, piece 1 is the top left corner and piece 9 is the bottom right. Because Instagram places your newest post at the top left, you must post them in reverse: first piece 9, then 8, and so on until piece 1.
Keep in mind that every new post you publish later shifts the whole grid by one position. To keep the mosaic aligned, add new posts in multiples of three, a full row at a time. Pinned posts sit above the grid and can also change how it looks, so check your profile after posting. Instagram can change how it displays profiles, so preview the result before relying on it for a launch.
Private, free and flexible
The image is cut in your browser and is not uploaded to a server. It is free, with no account and no watermark. You can keep the original format or save the pieces as JPG, PNG or WEBP. For carousels or grids without the square crop, use Split image with any layout up to 20×20.