Are NanoTools completely free to use?

Yes, all basic tools on NanoTools are completely free to use with no registration required. We offer premium features for power users.

Is my data secure when using NanoTools?

Your files are processed securely and are automatically deleted after processing. We do not store your files or data on our servers.

Do I need to install any software to use NanoTools?

No installation required. All tools work directly in your browser on any device - computer, tablet, or smartphone.

What file formats are supported?

We support a wide range of formats including PDF, JPG, PNG, WebP, GIF, JSON, XML, CSV, and many more depending on the tool.

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Add Rounded Corners to Image - Round Image Edges

Add rounded corners to images online for free. Create circular or rounded photos. Adjust corner radius.

Drop an image here or click to browse

image/* • Max 50MB

What This Tool Does

Adds customizable rounded corners to images
Adjusts corner radius from subtle to fully circular
Creates pill-shaped or stadium borders
Maintains image quality and transparency
Supports independent corner radius control
Generates PNG output with transparent corners

How to Use

1
Upload image
Select the image you want to add rounded corners to
2
Set corner radius
Adjust the slider to control how rounded the corners should be
3
Preview changes
See the rounded corner effect in real-time
4
Download result
Save the image with transparent rounded corners

How it works

Upload image

Select the image you want to add rounded corners to

Set corner radius

Adjust the slider to control how rounded the corners should be

Preview changes

See the rounded corner effect in real-time

Download result

Save the image with transparent rounded corners

Use Cases

Creating modern profile pictures with soft rounded edges
Designing card-style website components and layouts
Building mobile app UI elements with rounded images
Generating polished product thumbnails for e-commerce
Creating softer, more approachable marketing visuals
Designing contemporary social media graphics

Frequently Asked Questions

What happens to the corners?

Corners are replaced with transparency, creating rounded edges. The output is a PNG file with transparent corners.

Can I make a circular image?

Yes, increase the corner radius to maximum to create perfectly circular images (works best with square images).

Will it work on rectangular images?

Yes, rounded corners work on any aspect ratio. Very high radius on rectangles creates pill/stadium shapes.

Can I round only specific corners?

Some versions support independent corner control, allowing you to round only top corners, for example.

What format is the output?

PNG format to support transparency in the rounded corners.