HHandyPebble

Private image tool

Round Image Corners

Add smooth or classic rounded corners, preview the result, and download a new full-size copy.

Choose an image to begin.

Add an image

Drop one here, or choose a file from this device.

JPG, PNG, WebP, or GIF · 25 MB maximum · GIF uses the first frame
The useful part of corner theory

Round with a reason.

Smooth corners feel quieter

A calm curve softens a hard rectangle without making it feel childish. The effect comes from a gentle transition into the straight edge.

Classic corners stay familiar

The classic option uses a standard circular arc. It is predictable, clean, and a good fit for cards, thumbnails, and product photos.

Transparency matters

PNG and WebP can keep the cut corners transparent. JPG cannot, so the selected background color fills them.

No grand tour required

Three steps. Sharp corners retired.

01

Add an image

Choose one JPG, PNG, WebP, or GIF file.

02

Frame and shape it

Zoom, drag the subject into place, and pick a corner curve.

03

Download

Save the finished image at its original pixel dimensions.

Straight answers

Rounded-corner questions.

Does adding rounded corners reduce image quality?

The corner mask itself does not blur the photo. PNG export is lossless. JPG and WebP use compression, so their quality slider can trade a little detail for a smaller file.

Which formats are supported?

You can open JPG, PNG, WebP, and GIF images. The first frame of an animated GIF is used. Export is available as PNG, WebP, or JPG.

How do zoom and repositioning work?

Move the zoom slider above 100%, then drag the image to place the subject where you want it. The output keeps its original pixel dimensions, so zooming crops some pixels near the outer edges.

What is the difference between Smooth and Classic?

Classic uses a circular corner. Smooth uses a superellipse-inspired curve that stays flatter near the edges and turns more gradually. Neither is always better; pick the one that fits the image.

Can I make a circle image?

Yes. Choose the Circle preset. A square image becomes a circle; a rectangular image becomes a capsule-like shape unless you crop it square first.

Are my images uploaded or stored?

No. The editor, preview, and downloads run locally in your browser. HandyPebble cannot see or save your files.

Why does JPG show a background color?

JPG cannot store transparent pixels. The background picker fills the area outside the rounded shape. Use PNG or WebP if you need transparent corners.

Does this work on phones and tablets?

Yes. You can zoom and drag with a finger in current mobile browsers. Large images may take a little longer because all processing happens on your device instead of a server.