Round Image Corners
Round the corners or crop to a circle, exported as a transparent PNG.
Rounded Corners That Are Actually Transparent
Rounding an image’s corners is easy in CSS and awkward everywhere else. The moment you need the rounded version as a file — for a profile picture, an email signature, a slide, an app icon — you need the corners to be genuinely transparent rather than filled with whatever colour the page happened to be.
This clips the rounding into the pixels and exports PNG, which is the only common format that holds transparency. There is no JPEG option here for exactly that reason.
Key features
- Any radius, including a full circle — set as a percentage so it scales with the image.
- Square crop first — centre-cropped, which is what a circular avatar needs.
- Optional border — any colour and thickness, drawn to follow the rounding.
- Transparent or filled — leave the corners clear, or fill them with a colour of your choice.
- Checkerboard preview — so you can see the transparency rather than take it on trust.
This tool runs entirely inside your browser using native Web APIs. Your files and text are never uploaded to a server, never logged and never shared with third parties.
How to use: Round Image Corners
- Add an image
Any format your browser can decode. - Set the radius
Use the Circle preset for an avatar, or dial in a softer rounding. - Add a border if you want one
It follows the curve and sits inside the edge. - Download the PNG
The corners are genuinely clear, as the checkerboard behind the preview shows.
Technical specifications
| Processing location | Entirely in your browser — no server round trip |
|---|---|
| Data uploaded | None. Files and text never leave your device |
| Price | Free — no account, no trial, no usage cap |
| Category | Media |
| Works offline | Yes, once the page has loaded |
| Browser support | Chrome 90+, Edge 90+, Firefox 90+, Safari 15+ |
| Interface languages | English, 中文, हिन्दी, Español, العربية |
Frequently asked questions
Why is there no JPEG option?
JPEG has no alpha channel, so the rounded corners would have to be filled with a solid colour. That defeats the point. If you want a rounded image on a known background, turn on the solid background option and the PNG will match.
How do I make a perfectly circular avatar?
Leave "crop to a square" on and use the Circle preset, which sets the radius to 50% of the shorter side. A non-square image is centre-cropped first, so the subject should be roughly centred.
Will the rounding look smooth?
Yes. The clip is drawn with the canvas’s anti-aliased path, so the curve is smooth at any size. Exporting larger and scaling down gives the cleanest result of all.
Is the image uploaded?
No. It is decoded, clipped and re-encoded on a canvas in this page.