Resize image to Twitter/X Post (1600×900)

Drop an image below and this tool resizes it to 1600×900 pixels, entirely inside your browser — no upload, no install, no sign-up. A 16:9 image at 1600×900 displays at full width in the X timeline instead of being cropped into a square preview.

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.