Result will appear here.
Add rounded corners to an image with a safely clamped radius — transparent PNG by default, entirely in your browser.
The corner radius is in pixels. Larger values round more; the tool clamps it to half the shorter side so corners never overlap.
PNG and WebP keep the corners transparent. JPG fills the area outside the rounded rectangle with the background color.
If your radius is larger than allowed, it is reduced and the result panel reports the value used.
Rounding clips the corners but keeps the original width and height.
Round Image Corners turns the sharp corners of an image into smooth rounded ones. You set a corner radius in pixels, and the tool clips the image to a rounded rectangle in your browser.
The radius is clamped to a safe maximum — half the shorter side — so the corners never overlap into odd shapes, and negative or tampered values are rejected. If your radius is clamped, the result panel says so.
Output is PNG by default so the corners stay transparent. Choose JPG or WebP if you prefer; the area outside the rounded rectangle is then filled with the background color you pick.
The radius is clamped to half the shorter side so corners never overlap, and invalid values are rejected.
PNG output keeps the rounded corners transparent so the image sits on any background.
If the radius is reduced to fit, the result panel tells you the value that was actually used.
Your image is processed in your browser and never uploaded to a server.
Give thumbnails and cards soft rounded corners for a modern look.
Round the corners of icons, banners, or screenshots for a UI.
Create a rounded-square avatar without going fully circular.
Round corners from a phone, tablet, or computer browser with the file staying local.
No. The rounded-corner image is created in your browser with the HTML canvas, and your image is never uploaded to imgtoolsbase or any server.
It is clamped to half the shorter side so the corners cannot overlap, and the result panel notes the radius that was actually used.
Yes, when you output PNG (the default) or WebP. JPG cannot store transparency, so the area outside the rounded rectangle is filled with the background color.
This tool rounds all four corners with the same radius. Per-corner radii are a possible future enhancement.
No. The width and height stay the same; only the corners are clipped. The result panel confirms the dimensions.
Tools that pair well with Round Image Corners.