Cropping removes the parts of a photo you do not want: a cluttered background, a stranger at the edge of the frame, or the empty desk around a scanned document. It is also the right way to change shape, for example turning a landscape photo into a square profile picture without squashing anyone's face.
Instead of dragging handles, this cropper uses numbers. You tell it where the crop starts, measured from the left and top edges, and how wide and tall it should be. That makes it ideal when a form demands an exact pixel size or when you want identical crops on several images.
How to use: Crop Image Online
- Click Choose an image file and note the original width and height shown below the picker.
- Enter the starting point in From left (px) and From top (px); 0 and 0 mean the top-left corner.
- Set Crop width (px) and Crop height (px); use equal values for a square crop.
- Choose an Output format and, if you picked JPG or WebP, set the JPG / WebP quality.
- Click Crop image, check the preview, and adjust the numbers if the framing is off.
- Click Download to save the cropped image.
Example: crop a 1600 × 1200 photo to a 1000 × 1000 square starting 300 px from the left.
How to work out crop coordinates
Think of the image as a grid that starts at the top-left corner. From left (px) moves the crop area to the right, and From top (px) moves it down. The crop area must stay inside the original picture, so From left plus Crop width cannot be larger than the image width, and the same goes for the height.
To center a crop, subtract the crop size from the image size and divide by two. For a 1000 × 1000 square from a 1600 × 1200 photo: From left = (1600 − 1000) ÷ 2 = 300, and From top = (1200 − 1000) ÷ 2 = 100.
Crop to a square or a specific size
Square crops are the most common request, because profile pictures and many marketplace listings display images as squares. Use the shorter side of your photo as the crop width and height to keep the largest possible square, then position it over your subject.
If a form needs a final size like 600 × 600 but your photo is much larger, crop to a square first and then use the Image Resizer to bring it down to the exact dimensions. Cropping chooses what is in the frame; resizing sets how many pixels it has.
- Profile and avatar photos
- Product images for online stores
- Removing borders and margins from screenshots or scans
- Isolating a signature or a detail from a larger picture
Good to know before you crop
Cropping never adds detail; it keeps a portion of the existing pixels at their original resolution, so the cropped area looks exactly as sharp as it did in the full photo. Choose PNG if you want that portion saved with no further compression, or JPG or WebP for a smaller file.
The tool crops rectangles only, so round or freeform crops are not available. A circular profile picture is usually made by the platform itself, which masks your square image into a circle. Metadata such as the capture location is also not carried into the cropped file.
Frequently asked questions
How do I crop an image to a specific size in pixels?
Type the size you want into Crop width (px) and Crop height (px), then set From left (px) and From top (px) to position that area over the part of the photo you want. Click Crop image and check the preview. The result line shows the exact dimensions of the saved image.
How do I crop a photo into a square?
Enter the same number in Crop width and Crop height. To keep the largest possible square, use the shorter side of the photo; for a 4032 × 3024 photo that is 3024. Then center it by setting From left to (4032 − 3024) ÷ 2 = 504 and From top to 0.
Can I drag to select the crop area?
Not at the moment. This cropper uses exact pixel values instead of a drag box, which makes results precise and repeatable. If you are unsure about the position, start with a rough estimate, click Crop image, and adjust the numbers until the preview looks right.
Does cropping reduce image quality?
No, the pixels you keep are not resized, so they stay just as sharp. The only possible change comes from the output format: saving as JPG or WebP applies compression based on the quality slider, while PNG stores the cropped pixels without loss.
Why do I get an error that the crop area is outside the image?
The crop rectangle must fit inside the original picture. Check that From left plus Crop width is not larger than the image width, and From top plus Crop height is not larger than its height. The original dimensions are shown right after you choose the file.
Can I make a circular crop?
No, only rectangular crops are supported. Most social networks and chat apps that show round avatars take a square image and apply the circle mask themselves, so a well-centered square crop with your face in the middle and a little space around it is usually all you need.