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Image Cropper

Crop an image to 1:1, 16:9, 9:16 or a ratio you type in, with the cut taken from the full-resolution file rather than the preview on screen.

Picture

Your picture goes here, and the box lands on it at the shape you chose.

Picture

Drop an image here

PNG, JPEG or WebP — one picture at a time, and the cut is taken from the full-size original

Nine shapes, and each one states itself in the picture's own pixels once there is one. Custom takes a pair of its own.

Turn

Quarter turns only.

Mirror

A turn or a mirror re-frames the box, so straighten first and choose the shape after.

Output

PNG keeps transparency. JPEG and WebP are written at quality 90; for a size target, crop to PNG and finish in the image compressor.

Selection

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Nothing loaded yet

Pick a picture and the selection is counted in its own pixels from the first paint.

How to use

  1. Put one picture in the Picture box. Drag and drop, paste, or on a phone hit Take photo and shoot it there.
  2. Choose your Aspect ratio first. Switching it later recentres the box at its largest fitting size and your framing goes with it.
  3. Drag inside the box to slide it around, or pull a corner or an edge handle to resize. A locked ratio stays locked while you pull. From the keyboard, Tab to the box or one of its eight handles and use the arrows; Shift with an arrow moves ten pixels.
  4. Check the Selection figure as you go. It counts source pixels, so it tells you the real output size before you commit.
  5. Straighten a sideways shot with Turn or flip it with Mirror, then frame again, since both reset the selection.
  6. Set Output. PNG for transparency or for something you will edit again, JPEG for anything you are emailing or uploading, WebP for the web.
  7. Press Crop image. The cut takes over the picture well under Cropped and Download lights up; Original brings the box back if you want another go.

About this tool

Cropping an image is mostly a decision about what to throw away, and the fiddly part is hitting the shape a platform wants. Nine options sit in the Aspect ratio menu: Freeform, Square (1:1), 4:3, 3:2, 16:9, Portrait (3:4), Portrait (4:5), Story (9:16), and Custom, where you type your own pair of numbers. Lock one in and the box holds that shape however you drag its corners. The Selection figure counts the box in the source image's own pixels, which turns landing on 1080 by 1080 into a matter of watching a number rather than eyeballing a box.

Sideways phone photo? Turn Left and Right move it 90 degrees a step, and Mirror Across and Down flip it, before you frame anything. When you press Crop image the pixels are cut from the decoded original at full size, so what you see on screen is only a scaled preview and never the thing being cut. Out comes a PNG, JPEG or WebP named after what went in: beach.jpg gives you beach-cropped.jpg. If the source carried a DPI tag, a PNG or JPEG crop keeps it.

What it cannot do

  • Rectangles only. No circular or oval mask, and no drawing around an object to cut it out. Rotation moves in quarter turns, so you cannot nudge a crooked horizon by two degrees.
  • One picture per pass. The box holds a single file, so a set of twelve thumbnails means twelve trips through it.
  • JPEG and WebP output is written at quality 90 with no slider to change it. That is deliberately high, but if you want a specific file size, crop to PNG and finish the job in the image compressor.

Frequently asked questions

What ratio does a YouTube thumbnail or an Instagram post need?

A thumbnail is 16:9. A square feed post is 1:1, the taller feed post is 4:5, and Reels or stories want 9:16. All four are in the menu, and locking one means the box cannot drift off shape while you drag it around.

Why did my selection jump back to the middle?

Because you changed the aspect ratio, or turned or mirrored the image. Any of those rebuild the box as the biggest rectangle of the new shape that fits, centred. Get the ratio and the orientation sorted first, then frame.

Can I crop to a ratio that is not in the list?

Pick Custom and two number boxes appear for width and height. Put 21 and 9 in them for an ultrawide banner, or 8.5 and 11 for a letter page. Whatever you type behaves exactly like a built-in preset while you drag.

Does the crop come out at full resolution?

It does. The picture on screen is scaled to fit the stage, but the drag coordinates are converted back to source pixels and the cut happens against the decoded original. Crop a 4000 pixel wide photo in half and the file you download is 2000 pixels wide, with nothing lost to the preview.

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