Why a 1080 square still earns its place
The even tile in a grid
1080 by 1080 is a 1:1 frame. Profile grids, many marketplace thumbnails, and a square feed post are built on that evenness. The Instagram square preset in the social resizer is this same pair. A portrait feed is a different box, 1080 by 1350, and a story is 1080 by 1920. If you upload this square into a story, the app will pad or zoom. Use this page when the destination is the grid, a 1:1 carousel slide, or a product tile that should line up with its neighbors.
Faces and products in the middle
A square crop is generous until a circle is applied. Profile photos often lose the corners. Keep eyes and logos near the center, and leave a little air around a product so a tight grid does not clip the label. Type 1080 and 1080 rather than a nearby guess such as 1000. Forms that ask for this pair will reject a file that is close. Look at the preview after the numbers are in, at the size a phone grid will show, not only at full zoom on a desktop.
One photo, typed integers, local draw
The resizer takes the first file you add and ignores the rest of a multi-select. JPG, PNG, WebP, and GIF are accepted. Each side can go up to 10000 pixels, so 1080 is a comfortable shrink for a modern camera file and a poor enlargement for a tiny logo. Making a 200 pixel icon into this square does not invent detail. Start from a photo that is already at least this large when the tile needs to look crisp. The drawing happens on this device.
JPEG weight after the square is locked
A kilobyte target works for JPEG and WebP only. Leave it blank and those formats save at quality 0.92, which is a clean setting for a feed photo. PNG ignores the kilobyte box, so choose PNG for a flat graphic and JPEG for a photograph. If the square is right and the upload still complains about weight, open the image compressor afterward. Do not change the pixel pair just to chase kilobytes.