Round Image Corners
Round the corners of any photo or create circular avatars with transparent PNG output. Customize corner radii directly in your browser without uploading files.
JPG, PNG, WebP, GIF · single file
Tips
- Export as PNG to preserve transparent outer corners; saving as JPG fills the trimmed areas with solid white.
- Set the radius to half of the image width to generate a perfect circular avatar or profile picture.
- Adjust individual corner radii independently when you only need to curve specific edges, like top card headers.
How to use it
- 1 Upload or drag and drop your image into the editor.
- 2 Set the desired corner radius or enable the circular crop toggle.
- 3 Choose PNG format to retain transparency in the corner cutouts.
- 4 Download the processed image to your device.
What you should know
UI design systems, profile badges, and card components frequently require images with rounded corners or circular geometry. Standard rectangular rasters like JPEG lack an alpha channel, meaning any clipped boundary must either blend against a hardcoded background color or expose jagged artifacts. By clipping the raster along a curved bezier path and saving to an alpha-capable format like 32-bit PNG or WebP, the clipped pixel regions remain completely transparent. This transparency ensures clean rendering across varying website themes, dark modes, and layered UI mockups without requiring CSS border-radius overlays.
This tool renders your image onto an HTML5 canvas element, applies the selected corner radius or circular mask, and exports a clean raster file. You can configure uniform radii across all four corners or target specific corners individually to fit specialized interface designs. The processing runs locally through your browser engine, preserving source color fidelity while discarding unnecessary EXIF metadata and clipping outer pixel data. Because the tool flattens layered files and cuts unmasked pixels, ensure you keep your original master image for future edits.
Frequently asked questions
Why does my exported image have a white background instead of transparent corners?
If you select JPG as the export format, the clipped corners automatically fill with white because JPEG does not support an alpha transparency channel. Choose PNG to keep the outer areas transparent.
How do I create a perfect circle avatar?
Upload a square image and set the corner radius value to exactly half of the image's pixel width. If your image is rectangular, crop it to a 1:1 aspect ratio first before applying the radius.
Is my image uploaded to an external server during processing?
No, all pixel masking and rendering execute directly on your local device using browser canvas APIs. Your source files never leave your computer or phone.
Guides
Articles and format references related to this tool.
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