点击或拖拽图片到这里
支持 JPG, PNG, WebP 格式，文件大小不超过 20MB
What this tool does
Round image corners with a radius slider (capped at half the short side). Corners stay transparent — PNG only.
How to use
- Upload.
- Drag radius and watch the preview.
- Download PNG.
FAQ
Why no JPG?
JPG has no alpha; outside corners would fill solid.
Per-corner radii?
Single radius for all corners for now.
More tools in thedeveloper toolbox. For store preview shots, try theApp Store screenshot maker.