Crop an image into a circle — with real transparency
Move and zoom your photo under the circle mask until the framing fits, then export a perfect circle as a PNG with a transparent background. Ideal for profile pictures, team pages, logos and avatars. Everything runs locally in your browser — portrait photos in particular do not belong on a stranger's server.
Why is the result a PNG?
Because only formats with an alpha channel can do real round shapes: PNG stores an 8-bit alpha channel with 256 levels of transparency, which gives the circle a soft, cleanly anti-aliased edge. JPEG has no transparency at all — a "round" JPEG would inevitably show corners in the background colour.
Why crop the circle yourself when platforms do it?
A platform's automatic circle mask crops dead-centre, no questions asked. Cropping yourself decides where the head sits and how much margin remains — and produces an image that looks identical everywhere: chat avatar, e-mail signature, website. Exported cleanly once, the file works across platforms.
Honest limits
- Transparency only survives while the file stays PNG (or WebP) — converting to JPG fills the transparent area with a background colour.
- Some legacy programs display transparency as a white or black background; that is a limit of the program, not of the file.
- Exporting drops EXIF metadata — a privacy advantage for profile pictures.