Crop Image
Trim an image to a square, a common aspect ratio, or an exact region you specify in pixels.
Processed on your device — no upload
How to crop image
- Choose the image you want to trim.
- Pick a shape and which part to keep, or type an exact region.
- Press crop, check the preview, then download.
How it works
Cropping copies a rectangle out of the source image onto a canvas the size of that rectangle. Unlike cropping a PDF, this genuinely removes the discarded area: what falls outside the rectangle is not stored anywhere in the output, so a crop is a real way to take something out of a picture.
Choosing a shape computes the largest rectangle of that ratio which fits inside the image, then positions it according to keep which part. For a 3:2 landscape photo cropped to a square, the width becomes the height and the box slides left, right or centre. The four number fields always show the exact region, so a preset is a starting point you can then adjust rather than a black box.
Cropping never scales. A square cut from a 4000×3000 photo is 3000×3000 — the pixels are the originals, untouched. If you need a specific output size as well, crop for the shape and then resize for the dimensions, in that order.
The tool rejects a region that falls outside the image and tells you the actual dimensions, rather than silently clamping the values and giving you a differently sized result than you asked for.
A worked example
You need a square profile picture from portrait.jpg, a 4000×6000 photo taken in portrait orientation with your head near the top of the frame.
Choose the file and leave the shape on Square — 1:1. The tool computes a 4000×4000 box — the largest square that fits — and centres it vertically, which puts the crop across your chest and cuts off the top of your head.
Change keep which part to Top. The box jumps to the top of the frame: offset 0, and your face is now inside it. Press crop and the preview confirms it.
Want it slightly lower? The number fields are live. The top offset is currently 0 and the image is 6000 tall, so anything from 0 to 2000 is valid. Type 350 in the top offset field and crop again — the square moves down 350 pixels, which frames the face better than either preset.
The result is 4000×4000, which is far more than any profile picture needs. Resize it to 512px afterwards and the file drops from megabytes to tens of kilobytes.
Questions
Is my image uploaded to be cropped?
No. The crop runs on a canvas in your browser. This site has no backend, so the picture never leaves your device.
Does cropping really remove the parts I cut off?
Yes. Unlike cropping a PDF, which only hides the margins, an image crop copies just the region you kept — the rest is not present in the output file.
Does cropping change the resolution?
It reduces it, because you are keeping fewer pixels, but it never scales. A square cut from a 4000×3000 photo is exactly 3000×3000 of original pixels.
How do I crop to an exact position?
Set the shape to "free", or use a preset and then edit the four number fields. Left and top offsets are measured from the top-left corner of the image.
What aspect ratio should I use?
1:1 for profile pictures and most social avatars, 16:9 for video thumbnails and slides, 9:16 for phone stories, 3:2 for prints. The presets cover the common cases.
Can I crop and resize at the same time?
Not in one step, and doing them separately is clearer. Crop first for the shape, then resize for the pixel dimensions.
Why was my region rejected?
Because it extends past the edge of the image. The message includes the real dimensions — offsets plus width must stay within them.
Does cropping remove the photo metadata?
Yes. The image is redrawn through a canvas, so EXIF data including GPS is not carried into the cropped file.
Can I crop JPG and PNG files?
Yes. Crop JPG, crop JPEG, crop PNG, WebP and GIF all work the same way, and the output keeps the format it arrived as. Cropping a PNG keeps its transparent areas transparent.
Can I crop images in bulk?
One at a time. Crop pictures individually because the region worth keeping is different in every photograph, and a batch crop at fixed coordinates cuts the subject out of most of them.
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