How do I figure out the right coordinates?

Open the image in any viewer that shows cursor position (most OS photo viewers and editors do), note the top-left corner of the area you want, then subtract to get width and height. Remember the origin is the top-left of the image, with Y increasing downward.

Is there an aspect-ratio preset?

Not as a one-click preset — but ratios are easy to express in numbers. For a square, set width and height to the same value. For 16:9, pick a width and set height to width x 9 / 16.

Will the original image be modified?

No. The tool produces a new file; the original on your computer is untouched, so you can re-crop with different numbers as many times as you like.

What format is the cropped file?

The same as the input when your browser can re-encode it. AVIF inputs (and WebP in some Safari versions) come back as PNG because the browser can decode but not encode those formats — the downloaded extension always reflects the actual format. PNG transparency survives the crop.

Crop Image

Crop images by specifying exact coordinates and dimensions.

Drop image files here or browse

Max 50MB per file

About Crop Image

Cropping trims an image down to a rectangular region — cutting away a cluttered edge, isolating one element from a screenshot, or extracting an exact slice of a scan. Convertora's crop tool is coordinate-based: you enter the X and Y offset of the top-left corner plus the width and height of the region, and the tool cuts exactly that rectangle. That precision is the point — when you need pixel-exact crops, or the same crop applied identically across repeated jobs, typed coordinates beat dragging a fuzzy selection box.

Like the rest of Convertora, the crop happens entirely in your browser: the image is drawn to a canvas, the selected region is copied out, and a new file is produced for download. Nothing is uploaded, and your original file is never modified.

How to use it

1Upload a JPG, PNG, WebP, or AVIF image (up to 50 MB). Its original pixel dimensions are displayed, and the crop region defaults to the full image.
2Set the X and Y offsets — the distance in pixels from the left and top edges to where the crop should start. (0, 0) is the top-left corner.
3Set the width and height of the region to keep. The inputs are clamped so the rectangle can't extend past the image edge.
4Click Crop. The cut-out region is encoded and downloaded with a '-cropped' suffix in the filename.

Common use cases

Cutting a single chart or table out of a full-page screenshot at exact pixel boundaries.
Trimming scanner bed margins off a scanned document or photo.
Extracting a fixed region (a header, a stamp, a signature line) from a series of identically laid-out images using the same four numbers every time.
Making a square avatar from a rectangular photo by setting width equal to height.

Frequently asked questions

Tips

Crop before you resize: cutting away unwanted pixels first means the resize works on exactly the composition you want.
For a centered crop, compute X as (original width - crop width) / 2 and Y the same way with heights.

100% private — runs in your browser

Convertora processes everything on your device using JavaScript and WebAssembly. Files never leave your browser, are never uploaded to a server, and are never seen by us or anyone else. The moment you close the tab, the data is gone — there is no temporary cloud copy, no log entry, no retained backup.

Because the work happens locally, processing speed depends on your device — but there are no rate limits, no daily caps, and no file size restrictions beyond what your browser can handle in memory. No signup, no account, no payment. The tool works the same in incognito mode, on a corporate network, or after the page has loaded once, even with the network disconnected.