How to use the image cropper
- Drop an image onto the drop zone or click to choose one.
- Rotate or flip it first if needed.
- Choose an aspect ratio preset or Free, then drag the box and its handles. You can also type exact X, Y, width and height values, or use the arrow keys on the focused box.
- Pick an output format and click Crop image, then download the result.
Worked example
A 16:9 crop from a 4000 x 3000 photo
The largest 16:9 area in a 4000 x 3000 image is 4000 x 2250 pixels (4000 ÷ 16 x 9 = 2250), starting 375 pixels from the top when centred. Choosing 1:1 on the same photo gives a 3000 x 3000 square.
How it works
The image is drawn to a canvas with your rotation (clockwise in 90 degree steps) and flips applied, and the crop rectangle, measured in the rotated image's pixels, is copied to a new canvas at full resolution and encoded in the chosen format.
Assumptions
- Crop values are whole pixels in the rotated image.
- Phone photos are shown upright using their EXIF orientation before cropping.
Frequently asked questions
Are my files uploaded?
No. Images are processed in your browser on your own device and are never sent to our server. The page keeps working if you go offline after it loads.
Does cropping reduce quality?
Cropping keeps the original pixels. Saving as JPEG or WebP re-encodes the image, which is slightly lossy; choose PNG for a lossless result.
How do I crop with the keyboard?
Tab to the crop box, then use the arrow keys to move it by 1 pixel, Shift and arrows for 10 pixels, and Alt and arrows to resize.
Can I crop to an exact size like 1200 x 630?
Type the width and height into the number fields with the aspect set to Free, then position the box. For many preset sizes at once, use the social media image resizer.
Limitations
- Images up to 50 MB each are accepted. Very large images (tens of megapixels) depend on device memory, and iPhones and iPads limit canvases to about 16.7 megapixels.
- One image at a time.
- Rotation is limited to 90 degree steps.