Rounded corners are a staple of modern design — app icons, profile pictures, product images, and social media cards. ImageZen4u rounds image corners and saves as transparent PNG so corners are genuinely see-through, not white.
Common uses for rounded corners
- App store icons (require rounded corners on iOS)
- Social media profile pictures
- Product images on websites and marketplaces
- Presentation slides and Google Slides
- Email newsletter images
How to round image corners in 3 steps
Upload your image
Go to ImageZen4u Round Corners. Batch rounding supported.
Set corner radius
10-15% for subtle, 25-30% for prominent rounded corners, 50% for a perfect circle.
Download transparent PNG
Downloads as PNG with genuine transparency — place on any background.
How to make a circle image
First crop your image to a square using the Crop Image tool, then use Round Corners at 50% radius. The result is a perfect circle with transparent background.
Why browser-based tools are better for privacy
Traditional online tools upload your files to a remote server, process them there, and send the result back. This means your files — which may contain sensitive personal, financial, or confidential information — pass through and are temporarily stored on a computer you do not control. Browser-based tools like the ones covered here work entirely on your own device. Your files never travel across the internet, which eliminates the privacy risk completely.
What to look for in a free online tool
When choosing a free tool, check three things. First, does it upload your files or process them locally? Local processing is always more private. Second, does it add watermarks or impose daily limits? Genuinely free tools do not. Third, does it require an account? The best tools let you start immediately without signing up. A tool that processes files in your browser, adds no watermarks, and needs no account gives you the most freedom and privacy.
Tips for the best results
For the highest quality output, always start with the highest quality source file you have. Avoid repeatedly processing the same file through multiple tools, as each step can compound small quality losses. When a tool offers quality or compression settings, experiment with them to find the right balance between file size and visual quality for your specific needs. And always keep a backup of your original file before making changes.