Square profile picture
A portrait photo needs a square crop around the face.
- Choose the 1:1 preset
- Move and resize the box over the face
- Apply and download the PNG
The output is square and uses only the selected pixels; no stretching is involved.
Image Cropper
This image cropper lets you select exactly the part of a picture you need. Drag the box or type pixel values, choose a common aspect ratio, and export the cropped area as PNG without uploading the original.
Your data is processed locally in your browser and is not uploaded to our server.
or drop an image here
JPEG · PNG · WebP · GIF · max 20 MB
Drag the box to move it; drag the corner handle to resize.
The crop must fit inside the image.
Cropped result
How to use this tool
- 1 Choose or drop an image; the crop box appears over the preview.
- 2 Drag the box to move it, or drag the bottom-right handle to resize it.
- 3 Use a 1:1, 4:3 or 16:9 preset, or type exact crop values in pixels.
- 4 Apply the crop, check the result and download the PNG.
Formula and calculation logic
Crop rectangle
Output = source pixels from (x, y) to (x + width, y + height)
The crop is defined in the image’s natural pixel coordinates, so the exported file has exactly the selected width and height.
Aspect ratio
Height = Width ÷ ratio
Presets adjust one side from the other while keeping the box inside the image. With “Free”, width and height can be set independently.
Worked example
Wide banner
A header image needs a 16:9 section.
- Choose 16:9
- Position the box
- Type exact values if a layout requires them
The numeric fields and the box stay in sync, so precise layouts are reproducible.
Edge cases and accuracy
Crop box outside the image
The box is clamped to the image bounds. Moving or resizing it beyond an edge stops at the edge instead of producing transparent pixels.
Small selections
A crop must be at least one pixel. Very small selections are allowed but may look blurry when enlarged afterwards.
Animated images
Only the first frame of an animated GIF is shown and cropped. Animation is not preserved by this canvas-based tool.
Frequently asked questions
Does cropping reduce quality? + −
The cropped PNG is re-encoded losslessly from the decoded pixels, so it does not add JPEG-style artifacts. Detail outside the crop is discarded.
Can I crop to an exact size? + −
Yes. Type the width, height, x and y values in pixels; the box moves to match them before you apply the crop.
Which formats can I crop? + −
JPEG, PNG, WebP and the first frame of GIF images. The exported file is PNG, which preserves sharp edges and transparency.
Why does the box move when I change the aspect ratio? + −
The ratio preset adjusts the height from the current width (or vice versa) and keeps the box inside the image, so the origin may shift near an edge.
Is the image uploaded? + −
No. Cropping happens entirely in your browser and the original file is never sent to a server.