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Image Cropper

Crop an image online free — circle, square or any aspect ratio, at an exact size in pixels, cm, mm or inches.

Circle & Square Crop
Exact Size
100% Private
1
Upload Image
2
Crop
3
Download

Upload Image

Drag & drop a photo or click to browse — nothing is uploaded to a server

Drag an image here or browse files
JPG · PNG · WebP · GIF · BMP

Private by design: close the tab and the image is gone.

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How to crop an image online free

CodBolt's image cropper runs entirely inside your browser, so there is no upload, no sign-up and no watermark on the result. Three steps:

  1. Upload your photo. Drag it onto the box or click to browse. JPG, PNG, WebP, GIF and BMP all work.
  2. Set the crop. Drag the box over the part you want, or pick a shape and aspect ratio and type an exact crop size. Arrow keys nudge the box one pixel at a time.
  3. Download. Choose PNG, JPG or WebP and save the cropped image straight to your device.

Using the circle crop

Set the crop shape to Circle and keep the output format on PNG. PNG stores an alpha channel, so everything outside the circle is saved as genuinely transparent pixels — ideal for a profile picture or a logo that has to sit on a coloured background. JPG has no alpha channel at all, so a JPG circle crop is filled with a solid background colour instead; the tool lets you pick that colour so it can be matched to wherever the image will sit.

Setting an exact crop size

Type the width and height you need into Exact Crop Size. Work in pixels for anything that will be shown on a screen, or switch the unit to cm, mm or inches for print. Physical units need a DPI, because centimetres only become pixels once you decide how many pixels go into an inch — at the usual print value of 300 DPI, a 2 × 2 inch passport photo is 600 × 600 pixels, and a 35 × 45 mm photo is 413 × 531 pixels. The tool always shows the pixel result underneath, so you can see the real resolution you are about to download.

If you ask for a crop larger than the image itself, it is scaled down to the biggest box that still fits at the same ratio, and the tool says so rather than silently giving you something other than what you typed.

Choosing the output format

Cropping only throws away the pixels outside the box — the pixels you keep are the original ones, untouched. Any quality loss comes from re-encoding afterwards. Download as PNG and the copy is lossless. Choose JPG or WebP and the quality slider decides the trade-off, or turn on Target file size and give a limit in KB: the tool then finds the highest quality that still fits under it, which is what upload forms capped at 20 KB, 50 KB or 100 KB actually need.

Frequently Asked Questions

Switch the crop shape to Circle, drag the crop box over the part you want, then download. Choose PNG as the output format so the area outside the circle stays transparent. JPG cannot store transparency, so a JPG circle crop is filled with a background colour instead.
Yes. Open the Exact Crop Size panel and type the width and height you need. The crop box on the preview updates as you type, and you can still drag it to choose which part of the photo those pixels come from.
Yes. Change the unit selector from px to cm, mm or in and set the DPI. At 300 DPI one inch equals 300 pixels, so a 2 x 2 inch passport crop becomes 600 x 600 pixels. The tool shows the pixel equivalent underneath so you always know the real output resolution.
Cropping itself only discards pixels outside the crop box, so the pixels you keep are untouched. Quality loss comes from re-encoding. Download as PNG for a lossless copy, or keep the JPG quality slider at 90 percent or above if you need a smaller file.
Yes. Turn on Target File Size and enter a value in KB. The tool searches for the highest JPG or WebP quality that still fits under your limit, which is useful for upload forms that cap files at 20 KB, 50 KB or 100 KB. PNG has no quality setting, so target size is available for JPG and WebP only.
No. There is no watermark, no account and no limit on how many images you crop.
No. All cropping runs entirely in your browser using the HTML5 Canvas API. Your images never leave your device.