Turn any photo into a circle, transparent background or solid fill. Download as PNG. Nothing is uploaded.
Crop any image to a perfect circle with a transparent background and download it as a PNG, all computed in the browser using the Canvas API, with no upload. The circular mask is applied client-side and the PNG alpha channel preserves the transparent corners.
Common uses include preparing profile pictures for social networks, creating round avatars for apps, or producing circular thumbnails for presentations.
No. Your image is processed by the HTML5 Canvas API in your browser tab, it is drawn onto a canvas through a circular clip path, then exported with toBlob, and the result is offered as a local download. Nothing reaches Sunasty or any third party. Open your browser's DevTools, go to the Network tab and watch: no request carries your image.
PNG is the only widely supported web format that carries a full alpha (transparency) channel, which is required to represent the transparent corners outside the circle. JPEG does not support transparency.
The tool crops to the largest centered circle that fits within the image. If you need to reframe the subject, crop or resize your image first, then apply the circle crop.
Yes, once the page has loaded. Because the processing happens on your device, you can disconnect from the network and the tool keeps working. This is the clearest proof that your data never leaves your machine.
It is completely free and requires no sign-up. There are no watermarks, no daily limits and no tracking cookies needed to use the tool.