- Private: files never leave your device
- Free, no sign-up
- Fast, works offline once loaded
How to use Crop Irregular Shape
- Drop your picture into the box.
- Click to place points around the area to keep. Click the green first point to close the shape, then drag any point to adjust.
- Download the transparent PNG.
About this tool
Precise polygon cropping for objects with straight edges: signs, products, buildings, documents and screens. Click around the outline, close the shape and everything outside is removed.
You can drag any corner after placing it, undo the last point, or clear and start again. The result is a PNG trimmed to the shape, with optional soft edges.
Frequently asked questions
How do I crop a polygon from an image?
Click to place points around the area, click the first point to close the shape and download.
Can I move points afterwards?
Yes. Drag any dot to fine-tune the outline.
What file do I get?
A PNG with a transparent background, trimmed to the shape.
Is Crop Irregular Shape really free?
Yes. You can use Crop Irregular Shape as often as you like with no sign-up, no watermark and no daily limit.
Are my images uploaded to a server?
No. Crop Irregular Shape runs entirely in your web browser, so your files stay on your own device and are never sent to DEWANARO or anyone else.