Rounded corners or a circle
The tool has two modes.
Rounded corners. The radius slider goes from 0% to 50% of the image’s shorter side, and the preview updates as you drag it. Low values (5–10%) give the gentle rounding you see on app screenshots and cards; around 20% looks like an app icon; 50% gives fully round ends. The picture keeps its exact width and height — only the corners become transparent.
Crop to a circle. Tick the box and the tool keeps a centered circle whose diameter is the shorter side of the image. A 1200 × 800 photo gives an 800 × 800 PNG with a round picture in the middle and transparent corners. Center your subject before using it, since the edges of a wide or tall photo are cut away.
Radius examples
For a 1200 × 800 image, the shorter side is 800 pixels:
| Radius | Corner radius in pixels | Look |
|---|---|---|
| 5% | 40 px | Subtle, like a photo card |
| 10% (default) | 80 px | Clearly rounded, modern UI style |
| 25% | 200 px | Very soft, badge-like |
| 50% | 400 px | Pill shape (a circle on a square image) |
Why a PNG with transparency
Everything outside the rounded shape is fully transparent, so the image sits cleanly on any background — a white web page, a dark-mode app, a colored slide. That is why the download is always a PNG, which every browser, slide editor and design tool supports with transparency. If you open a JPG photo, the PNG will usually be larger than the original, because PNG compression is lossless.
Where a transparent image is not accepted, such as some print services, place it on a solid color instead with Add Border to Image.
Good uses
- Profile pictures and avatars: the circle crop gives a round photo for a website team page, an email signature or a forum. Square it first with Make Image Square if you want to choose the background around the subject instead of cropping.
- Screenshots in documents and slides: a small radius makes a screenshot look like a polished card.
- App icons and favicons: round the corners of a logo, then turn the PNG into an icon with PNG to ICO.
- Stickers and badges: a circle crop with a bold image works well as a sticker or a chat emoji.
Formats and privacy
You can open JPG, PNG, WebP, AVIF, GIF (first frame), BMP and SVG files, plus iPhone HEIC photos; every one is saved as PNG. The shape is cut with your browser’s canvas on your device. There is no upload, the page keeps working offline once loaded, and metadata such as GPS location is not copied into the new file.