Rounded Corner Image Maker
圆角图片透明PNG头像处理UI素材
Adjust corner roundness from 0-100% with live transparent checkerboard preview and export straight to transparent PNG — for avatars and UI assets, fully local.
Checkerboard = transparent area. All processing is local.
How to Use
- Paste any valid JSON, supports nesting, arrays and escapes
- Click Beautify to auto indent and format
- Click Minify to remove whitespace into one line
- All operations run locally for privacy
Related Tools
FAQ
What does 100% roundness look like?
It reaches the inscribed-circle limit, i.e. a circular avatar effect; around 50% gives typical card corner feel.
Why must the export be PNG?
JPEG lacks alpha so transparency becomes solid white; only PNG preserves true rounded transparency.
Is my image uploaded?
No, everything runs locally in your browser.