Circle Image Cropper
Drag a square over the part of the photo you want, and take away the circle inside it — as a PNG with a genuinely transparent background, ready for a profile picture, a logo or a slide. The photo is cropped on your own device and never uploaded.
PNG, JPG, WEBP or AVIF. You can also paste from the clipboard.
Drag inside the square to move it, pull a corner to resize, or drag anywhere on the photo to draw a new one. Arrow keys nudge it; + and − resize.
How it works
You choose a square, because a circle drawn inside anything else is an ellipse. The square is held square however you drag it — from a corner, from the middle, or drawn fresh across the photo — so the result is always round rather than squashed.
The circle itself is cut by working out, for every pixel on the rim, how much of it the circle actually covers. Pixels well inside are kept, pixels outside are dropped, and the ones the edge passes through are left partly transparent. That single soft pixel is the difference between a circle and a staircase, and it is why the result still looks round at 128 px.
The background is really transparent
The download is a PNG, and the corners outside the circle carry no colour at all — not white, not a checkerboard. Put it on a dark slide, a coloured card or a website header and it stays a circle. Transparency that was already in the image is kept too, so a cut-out stays cut out.
JPG cannot hold transparency. That is why there is no JPG option here: saving a circle as a JPG would fill the corners with black or white and undo the whole point. If you need a JPG, place the PNG on whatever background you want first.
Sizes for profile pictures
- As selected keeps the exact pixels you picked — the sharpest result, and the right choice when you are cropping a large photo.
- 512, 256 or 128 writes a fixed square, which is what most profile pictures, forum avatars and app icons expect. Picking one larger than your selection enlarges it, so prefer a bigger square on the photo where you can.
Privacy
The photo is decoded, cropped and written out inside your browser. There is no upload and no model to download — this page fetches nothing but itself. Load it, disconnect from the internet, and it still works. See the privacy page.
Limits
Photos up to about 16 megapixels are kept at full size; anything larger is scaled to fit, because browsers — iOS Safari first — refuse to hold a canvas past roughly that. It is said on screen when it happens.