Image Cropper

Crop your image by specifying the coordinates and size of the area you want.

When should you use this?

Use this when you only need part of an image, or need to fit it to a specific aspect ratio (square, 16:9).

When shouldn't you use this?

Cropping is permanent, the cropped-out part can't be recovered; don't crop without keeping a copy of the original file.

Step-by-step

Choose your file in the "Image" field and note its full width and height in pixels. You'll find these in the file properties or any image viewer.
In "X" and "Y", enter the position of the top-left corner of the area you want to keep. Counting starts at 0 from the image's top-left corner.
In "Width" and "Height", enter the size of the rectangle to cut out. X plus width shouldn't exceed the image width, and Y plus height shouldn't exceed the image height.
Click "Crop and download". The cropped file downloads automatically.

Example

You have a 1920 x 1080 landscape photo and want a centered square for a profile picture. The square can only be as big as the short side, so width and height are both 1080. To center it horizontally, split the leftover space: 1920 minus 1080 is 840, and half of that is 420. Enter 420 for X and 0 for Y, and you get a 1080 x 1080 square from the middle of the photo. If the face isn't centered, nudge X left or right.

Cropping images

Cropping cuts unwanted parts of an image to emphasise the subject or to fit a specific aspect ratio (1:1, 4:5, 16:9). The cropped part cannot be recovered, so keeping the original file is a good habit.

When cropping

Before cropping, check the ratio the target platform recommends.
Do not put the key subject too close to the edge; platforms may crop further.
Cropping reduces resolution; on a small image the result can be blurry.
Save the original separately.

Things to keep in mind

Some phone photos are stored sideways and only rotated on display. If your coordinates land in the wrong place, check the image orientation.
For a fixed ratio, work out the numbers first. For 16:9, divide the width by 16 and multiply by 9 to get the height.
Cropping a tiny area and then enlarging it gives a blurry result. Make sure the region has enough pixels for where it's going.
Missing on the first try is fine. The original file stays untouched, so you can adjust the values and crop again.

Frequently asked questions

Is my image uploaded anywhere?

No, processing happens entirely in your browser via the Canvas API — your image never leaves your device.

Will there be quality loss?

Some quality loss during format conversion or compression is normal, more noticeable with lossy formats like JPG.

Which formats are supported?

JPG, PNG, and WebP formats are supported.