Click to upload or drag & drop a photo
Processed entirely in your browser — nothing is uploadedWhy the download is a PNG
Rounded corners need a transparent background outside the rounded shape, and JPG doesn't support transparency — that's why this tool always downloads a PNG. If you plan to place the result on a solid-colour background anyway, converting it to JPG afterwards with our format converter (in reverse) will work fine.
How to use Round Image Corners
- Upload the photo you want to edit.
- Adjust any sliders, colours, or options shown above the upload box — the preview updates as you go.
- Compare the before and after side by side.
- Download the edited photo once it looks the way you want.
Tips for best results
- Try a few different settings before downloading — most sliders here update the preview instantly, so it's quick to compare options.
- Work from your best-quality original; effects applied on top of an already-compressed photo tend to look rougher.
- If you're combining this with another tool (like compressing afterwards), apply this effect first, then compress last.
❓ Frequently asked questions
Can I apply this more than once to stack the effect?
Yes — download the result and re-upload it to apply the effect again, though stacking some effects can look over-processed quickly.
Does this work on PNG images with transparency?
Transparent areas are generally preserved unless the tool specifically converts to JPG, which fills transparency with white.
Why is my downloaded file a PNG instead of JPG?
Rounded corners require transparency outside the curve, which only PNG supports — JPG would show a solid colour box instead of rounded edges.
What radius should I use for an app-icon style look?
A larger radius relative to the image size (30–40% of the shorter side) gives the soft "squircle" look common in modern app icons.
Can I get fully circular corners like a circle crop?
For a full circle, our dedicated circle crop tool is a better fit than maxing out the radius here.