Social Media Image Cropper

A social media image cropper resizes a photo to the exact pixel dimensions a platform displays, so the platform does not crop it for you. Every network re-frames what you upload to fit its feed: Instagram trims anything taller than 4:5, Bluesky pulls a wide image toward 1.91:1, X shows 16:9 before you tap. If you upload a shape the feed does not want, the network picks what to cut, and it almost always picks the middle. Cropping first is how you decide instead.

The part most croppers get wrong is which part to keep. Centring is the obvious default and the wrong one surprisingly often - a portrait cropped to a wide banner loses the head, a product shot loses the product, a screenshot loses the line that mattered. This tool lets you pick the focal point from a nine-point grid, so "keep the top" is one click rather than a manual drag you have to eyeball. The crop is always the largest region of the right shape that fits, anchored where you asked and clamped so it can never run off the edge of the image.

It also tells you what the crop costs. Before you download, the tool reports how much of the original area survives and whether the result is being scaled down or up - because upscaling is the one case where the output will look worse than the input, and no cropper can fix a source that is smaller than the target. Everything runs on a canvas in your browser: the image is never uploaded, never stored, and the page keeps working with the network disconnected.