Why does my output image need to be PNG?

PNG format supports transparency (alpha channel), which is required to keep the corners around the rounded image transparent.

What do I need to enter?

Just Corner Radius. Every field has a sensible default you can start from.

Is my data uploaded anywhere?

No. The calculation runs in your browser with JavaScript — nothing you type is sent to a server or stored.

Does it work on a phone?

Yes. The layout adapts to small screens and needs no app or signup.

Is Round Image Corners & Circle Crop free?

Yes. Round Image Corners & Circle Crop on TheToolss is free to use with no signup required for the core workflow.

Round Image Corners & Circle Crop

Make photo corners rounded or create circular profile avatars with transparent PNG backgrounds.

100% free
Private in browser
No signup
No watermarks

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About Round Image Corners & Circle Crop

Easily round the corners of any photo or convert square images into perfect circular profile avatars with clean, anti-aliased edges and transparent PNG backgrounds.

How to use Round Image Corners & Circle Crop

Upload your photo (PNG, JPG, WebP).
Adjust the Corner Radius slider or toggle "Make Full Circle / Avatar".
Preview the rounded result in real time.
Click "Download Rounded PNG" to save the transparent image.

Key features

Custom corner radius adjustment from 0 to 500px
1-click Full Circle Avatar generator mode
Export as transparent PNG with crisp anti-aliasing
Lossless full-resolution image processing

Frequently asked questions

Why does my output image need to be PNG?: PNG format supports transparency (alpha channel), which is required to keep the corners around the rounded image transparent.
What do I need to enter?: Just Corner Radius. Every field has a sensible default you can start from.
Is my data uploaded anywhere?: No. The calculation runs in your browser with JavaScript — nothing you type is sent to a server or stored.
Does it work on a phone?: Yes. The layout adapts to small screens and needs no app or signup.
Is Round Image Corners & Circle Crop free?: Yes. Round Image Corners & Circle Crop on TheToolss is free to use with no signup required for the core workflow.

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