Crop an image
Drag a box over your picture, or type exact pixel values, and keep only the part you want. Your image never leaves your device.
Drop an image here or click to choose
JPEG · PNG · WebP — cropped on your device, never uploaded
Drag inside the picture to draw a new area, or drag the handles to resize it. With the crop area focused, arrow keys move it and Shift + arrow keys resize it.
How to crop an image
- Drop an image into the box above, or click it to pick a file.
- Drag the crop area to move it, or drag any of the eight handles to resize it. Dragging on the picture itself draws a new area from scratch.
- Lock a shape with the Aspect ratio menu, or type exact values into X, Y, Width and Height.
-
Press Crop image and download the result. The new
dimensions are added to the file name, so
photo.jpgbecomesphoto-1080x1080.jpg.
Which aspect ratio do you need?
| Ratio | Used for | Typical size |
|---|---|---|
| 1:1 | Profile pictures, Instagram posts, app icons | 1080 × 1080 px |
| 16:9 | Video thumbnails, slides, website heroes | 1920 × 1080 px |
| 9:16 | Stories, Reels, TikTok, phone wallpapers | 1080 × 1920 px |
| 4:3 | Classic camera frame, presentation images | 1600 × 1200 px |
| 3:2 | DSLR photos and standard 6×4 inch prints | 1800 × 1200 px |
Why crop in the browser?
Cropping is usually an act of removal, not decoration. You cut a stranger out of a holiday photo, an address off a delivery label, a bank balance out of a screenshot before you send it on. Doing that on someone else’s server means uploading the whole uncropped picture first — the part you wanted to remove included.
shrink.run never receives it. The image is shown straight from your disk, the rectangle you drag is only ever a set of numbers in the tab, and the crop is drawn onto a canvas and encoded by your own browser. There is no upload step, no queue, no file-size limit imposed by us, and nothing on a server that could be logged, kept or leaked.
It is also the cheapest way to make a file smaller. Trimming a picture to half its area removes half its pixels, which almost always beats what a compressor can do to the full frame — and unlike compression, cropping does not touch the detail you keep.
Frequently asked questions
Is my image uploaded to a server?
No. The picture is displayed from your own disk, the crop is worked out in your browser and the new file is written on your device with WebAssembly builds of MozJPEG, OxiPNG and libwebp. Nothing is sent anywhere — which is the point when you are cutting a face, a signature or an address out of a photo.
Does cropping reduce quality?
The crop itself keeps the pixels it keeps, exactly as they were — nothing is scaled. The only lossy step is writing the file back, and at the default quality of 90 that is very hard to see. PNG output stays lossless whatever the slider says.
How do I crop to an exact size?
Type the numbers. The Width and Height boxes take pixel values, and X and Y set the top-left corner of the area, measured from the top-left of the picture. Everything you drag on the image updates those boxes, and everything you type updates the box on the image.
Can I crop to a fixed aspect ratio?
Yes. Pick one from the Aspect ratio menu — 1:1 for a profile picture, 16:9 for a video thumbnail, 9:16 for a story, 4:3 or 3:2 for prints — and the area keeps that shape however you drag it. Choose Free to go back to an unconstrained rectangle.
Can I crop without a mouse?
Yes. Tab to the crop area and the arrow keys move it by about one percent of the image at a time, while Shift and the arrow keys resize it. For exact work, the four number boxes are the fastest route and they are ordinary form fields.
Does cropping make the file smaller?
Almost always, because there are fewer pixels to store. Cutting a picture in half typically cuts the file size roughly in half too. The result row shows the old and new sizes side by side so you can see exactly what you saved.
What formats can I crop?
JPEG, PNG and WebP, and each one is written back in the same format it came in, so a PNG keeps its transparency and a WebP stays a WebP. iPhone HEIC photos need converting first.
Can I crop several images at once?
Not here — a crop is a decision about one specific picture, and the same rectangle rarely suits two of them. Crop one, then drop the next file onto the same box; every result keeps its own download link in the list below.