KBSnap

Crop an image to a circle

Drag the circle over the part you want, then download a PNG with a real transparent background — not a white square pretending to be round.

  • No upload
  • Exact target size
  • Batch ready

Drag images here, or click to choose

JPG / PNG / WebP / HEIC · up to 25MB each · batch supported

Files never leave your device — everything runs in your browser.

Fixed output size0 keeps the cropped pixels
px
Quality
92%

When people need this

Avatars, team pages and slide templates all show people as circles, and every one of them crops your square upload for you — usually by cutting off the top of the head. Cropping here means you decide what stays inside the circle. Logos, stamps and product cut-outs use the same shape for a different reason: a round badge reads as a mark rather than as a photo.

How big the file gets

A circle covers about 78.5% of its bounding square, so the visible pixels drop by a fifth compared to cropping the same area square. PNG keeps the transparency and does not compress as hard as JPEG; a 512×512 avatar lands around 150–400 KB. Lower the fixed output size if you need a smaller avatar — sites rarely want more than 400×400.

Why transparency is the whole point

A circle saved on a white background is only round on a white page. Put it on a dark header and you get a white disc with a face in it. The output here has an alpha channel, so the circle sits on whatever colour the surrounding page uses. That is also why the format is locked to PNG — JPEG has no alpha, and saving a circle as JPEG is how you get a black box around a face.

How it works

1

Add images

Drop a file, several files, or a whole folder. Nothing is uploaded.

2

Set the spec

Pick the target from this page — it is already filled in for you.

3

Download

Exact-size output, or a ZIP when you came with a batch.

Frequently asked questions

Will the background really be transparent?
Yes — the output is a PNG with an alpha channel. Drop it on any coloured background and only the circle shows.
What size should an avatar be?
400×400 covers every site that accepts an upload and still looks sharp on a retina screen. Set the fixed output size if you know the target, otherwise the crop keeps full resolution.
Can I use this for a batch of team photos?
Yes. The circle is applied as the same relative position on every image, so faces roughly in the same place all come out centred.

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