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Change Image Aspect Ratio

Crop a photo to 1:1, 4:5, 3:4, 16:9 and other ratios. Drag to choose the crop, zoom, pick an output width and save a JPG.

How to use

  1. Choose a photo or drop it in.
  2. Pick the ratio you need (1:1, 4:5, 3:4, 2:3, 16:9, 9:16, 3:2) or Original.
  3. Drag the photo to choose what is cropped and zoom with the slider (100–320%). The rule-of-thirds grid helps with composition.
  4. Choose an output width (original size, 640, 1080, 1440 or 2048 px). The resulting ratio and pixel size appear straight away, and the copy button copies them.
  5. Press Download to save a JPG.

FAQ

Can I keep the original ratio?

Yes. Pick Original in the ratio list to keep the photo's own ratio and only choose the output width.

Will the quality drop?

The crop uses pixels that already exist and the JPG is saved at 93% quality, so there is hardly any visible loss. Choosing an output width below the original lowers the resolution accordingly; choosing a larger one enlarges the photo, which does not make it sharper. A transparent PNG is saved as a JPG with a white background.

What does Original size output?

The number of source pixels the current frame covers. The more you zoom in, the narrower the cropped area and the smaller the saved size; the size is shown as width × height.

Which ratio should I use for Instagram?

Feed posts commonly use 1:1 (1080×1080), 4:5 (1080×1350) or, since the 2025 profile grid change, 3:4 (1080×1440). Stories and Reels are 9:16 (1080×1920). Choose 1080 px as the output width.

What if my ratio is not in the list?

Only 1:1, 4:5, 3:4, 2:3, 16:9, 9:16, 3:2 and Original are offered; there is no custom ratio. To fit an exact pixel size, use the custom size in Social Media Image Resizer.

Can it pad the photo instead of cropping?

No. The frame is always completely filled by the photo, even at 100% zoom, so the ratio is reached by cropping. To keep the whole photo and fill the rest, use the Contain mode in Social Media Image Resizer.

Can I batch several photos?

One photo at a time. The ratio, output width and zoom are remembered in this browser, so you can swap the photo and repeat with the same settings.

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