Is this Rounded Corner Mask safe and private to use?

Yes, 100%. All processing is executed locally in your browser sandbox using WebAssembly and client-side JavaScript. No images or metadata are uploaded to our servers.

What image formats are supported by Rounded Corner Mask?

Supports all major standard image formats including PNG, JPG, JPEG, WebP, SVG, GIF, BMP, and ICO.

Is there any cost or registration required?

No. All CrazyTools4U image utilities are completely free to use with no account creation or subscription required.

Rounded Corner Mask — Add Smooth Border Radius to Photos

About Rounded Corner Mask

Rounded Corner Mask is a high-performance, 100% private, client-side web utility in the Image Utilities category. All operations execute locally inside your web browser sandbox using WebAssembly, Web Workers, and HTML5 APIs. Zero server uploads, zero logging, and complete data privacy guaranteed.

Key Features & Capabilities

100% Client-Side Processing: Your files and sensitive data never leave your local device.
Arbitrary Precision & Standards Compliance: Built according to official W3C, RFC, and mathematical standards.
High Performance: Multi-threaded Web Workers and WebAssembly compute engine for instant results.
Universal Compatibility: Seamlessly works on desktop, tablet, and mobile browsers with zero software installation required.
Completely Free: Unlimited conversions and processing with zero watermarks and no registration required.

How to Use Rounded Corner Mask

Open Rounded Corner Mask on your desktop or mobile browser.
Input your data, parameters, or upload source files into the interactive studio.
Configure customized options or presets to match your exact workflow requirements.
View real-time calculations, live previews, or rendered transformations immediately.
Copy output to your clipboard or download your processed files with a single click.

Frequently Asked Questions

Is Rounded Corner Mask free to use?: Yes, Rounded Corner Mask is completely free with no usage limits, subscriptions, or hidden paywalls.
Are my files or data uploaded to any remote server?: No. All computation occurs 100% in your local browser sandbox. No data is ever transmitted or stored remotely.
What devices and operating systems are supported?: Rounded Corner Mask works across all modern web browsers including Google Chrome, Mozilla Firefox, Apple Safari, and Microsoft Edge on Windows, macOS, Linux, Android, and iOS.