Round Corners softens the sharp edges of a photo into smooth rounded corners, with an adjustable radius from a subtle curve to a full pill shape. Because rounded corners need transparency, the result is saved as a PNG. Everything runs in your browser — nothing is uploaded.
Drop a photo in and it appears in the preview.
Drag the slider to choose how rounded the corners are, from square to fully rounded. The preview updates live.
Export to save a transparent PNG with your rounded corners.
Round Corners softens the sharp edges of a photo into smooth rounded corners, with an adjustable radius from a subtle curve to a full pill shape. Because rounded corners need transparency, the result is saved as a PNG. Everything runs in your browser — nothing is uploaded.
Rounded corners leave transparent areas, and only formats with an alpha channel — like PNG — can store transparency, so JPG isn't an option here.
From perfectly square up to a full pill or circle shape when the radius reaches half of the shorter side.
Yes — it's set as a percentage of the shorter side, so it looks consistent whatever the resolution.
Yes — Round Corners is completely free. There's no account, sign-up, watermark or limit on the core tool.
No. This tool runs entirely in your browser — your file is processed on your own device and never leaves it. The only network request is an anonymous usage counter.
No. It runs in any modern browser — Chrome, Edge, Safari, Firefox, Brave — with nothing to download or install.