Resize image to Facebook Cover (820×312)

Drop an image below and this tool resizes it to 820×312 pixels, entirely inside your browser — no upload, no install, no sign-up. Facebook crops cover photos differently on desktop and mobile — 820×312 is the safe size that keeps important content visible on both.

With aspect ratio lock on (the default), the tool computes the matching dimension from your image's own proportions so the result isn't stretched or distorted — it never crops your photo. Turn the lock off if you need to hit this exact box regardless of your image's original shape.