A square (1:1) crop is what Instagram profile pictures, album art, product thumbnails and most avatars expect — but phones and cameras shoot rectangles. With FileZap's Crop Image tool you can turn any photo into a clean square in seconds, right in your browser. Nothing is uploaded to a server, so even personal or work photos stay completely private on your own device.
It depends on where you'll use it: Instagram and most profile pictures look sharp at 1080x1080 px, while small thumbnails can be 400x400 px. What matters is that width and height match (a 1:1 ratio). After cropping to a square on FileZap, use the Resize Image tool to set an exact pixel size like 1080x1080.
No. Cropping only removes the area outside your selection — the pixels you keep stay at their original resolution. The kept area isn't re-compressed, so a square crop looks just as sharp as the original photo.
With FileZap, yes. The Crop Image tool processes your photo locally in your browser using your own device, so the image is never sent to or stored on any server. Private photos never leave your computer or phone.