How Circle Avatar & Rounded Corner Image Maker (Transparent PNG) Works & When to Use It
Crop profile pictures, team avatars, or store logos into a smooth circle or rounded-corner square with transparent PNG corners. Calculations and file processing run in this browser tab. The tool does not send working inputs or files to our hosting server.
Step-by-Step Instructions
- Choose a profile picture or logo and set the output size.
- Use 50% rounding for a circle, or a smaller value for rounded corners. The source is cropped to a centred square.
- Download the PNG to keep transparent corners. A viewer may display transparency on a white or checkerboard background.
Worked Examples
| Scenario | Input Parameters | Example Output |
|---|---|---|
| 512×512 Perfect Circle Avatar (50% Radius) | {"sizePx": 512, "radiusPct": 50} |
512 × 512 px PNG (Corner Radius: 256px / 50%) |
| 512×512 App Icon Rounded Square (22% Radius) | {"sizePx": 512, "radiusPct": 22} |
512 × 512 px PNG (Corner Radius: 113px / 22%) |
Format reference and processing
- Reference Standard / Authority: HTML5 Canvas Clipping Path (arc / roundRect) Alpha Mask
- Privacy & Execution Mode: Browser-Local Only (HTML5 Canvas / ArrayBuffer — Zero Upload) (None (Native HTML5 Canvas, FileReader & PDF-1.4 Builder))
Important Limitations & Edge Cases
Always exports as PNG (`image/png`) to preserve transparent corners. Keep the original file. Check the saved format, dimensions, page order and content before replacing or sharing a document.
Frequently Asked Questions (FAQs)
1. Is Circle Avatar & Rounded Corner Image Maker (Transparent PNG) completely free to use without registration?
Yes. Every tool on Easy Tools Today is 100% free with no paywall, no sign-up, and no subscription required.
2. Are the numbers or files I enter uploaded to any server?
Calculations and file processing run in this browser tab. The tool does not send working inputs or files to our hosting server.
3. What should I check in the saved output?
Keep the original file. Check the saved format, dimensions, page order and content before replacing or sharing a document. Reference: HTML5 Canvas Clipping Path (arc / roundRect) Alpha Mask.