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.
Lose the sharp edges.
Keep the good stuff.
Give JPG, PNG, WebP, and GIF images clean rounded corners—with a live preview, simple controls, and zero cloud uploads.
Drop an image on the workbench
JPG, PNG, WebP, or GIF · One image at a time · 25 MB max
Phone photos work too. Nothing gets sent anywhere.01
Shape the corners
Frame the imageCentered at 100%
Zoom in, then drag the image itself to adjust the center. Double-click to recenter. This framing resets with the image.
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Pick the curve
The defaults are meant to look good, not make you do homework.
About 0 px on this image
One small convenience: your browser remembers the radius, curve, and export settings, so you won’t have to set them again next time. Zoom and image position are never remembered. Your image is never saved.
Export settings PNG · WebP · JPG
Round with a reason.
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 required01 02 03
Three steps. Sharp corners retired.
Add an image
Choose one JPG, PNG, WebP, or GIF file.
Frame and shape it
Zoom, drag the subject into place, and pick a corner curve.
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.