How to keep a selected area of an image

To keep part of an image, open the Image Cropper, select the area you want, click Crop image, and check the preview before downloading.

Crop an image step by step

1. Choose one JPG/JPEG, PNG, or WebP image using the file picker or drop zone. The file can be up to 25 MiB (26,214,400 bytes); the source image must be no more than 12,000 pixels per side and 32 million pixels in total.
2. Inspect the original dimensions shown by the tool. The coordinates and dimensions you enter refer to the original image pixels, not the scaled preview.
3. Drag over the preview to select the area to keep, or enter Left, Top, Width, and Height directly. Left and Top locate the selection’s upper-left corner; Width and Height set its size.
4. Click Crop image. Compare the resulting preview and its displayed dimensions with what you intended. Adjust the selection and crop again if needed.
5. Download the result, then open the saved file to inspect its framing and appearance. The suggested filename ends in -cropped with a JPG, PNG, or WebP extension.

For example, on a 1,600 × 1,200-pixel source, enter Left 200, Top 150, Width 1,200, and Height 900. This keeps a 1,200 × 900-pixel rectangle with a 200-pixel margin on each side and a 150-pixel margin at the top and bottom.

Avoid common mistakes

• Check the bounds. Left and Top must be nonnegative whole pixels; Width and Height must be whole pixels of at least 1. The selected rectangle must fit inside the source and cannot be the entire image.
• Do not confuse preview size with source coordinates. Use the original dimensions when entering exact values. If you need a particular aspect ratio, calculate it yourself: the tool has no aspect-ratio lock or preset.
• Do not assume the file will get smaller. The cropped output can have more or fewer bytes than the original. Cropping keeps an area; resizing changes dimensions; compression targets file bytes.
• Check the output format and appearance. The browser attempts to save in the source format, but the tool rejects an unsupported or mismatched output. PNG or WebP transparency may survive where supported; JPG has no transparency. Camera metadata may not survive re-encoding, and animation preservation is not promised.

Cropping is performed locally in the browser without uploading the image for processing. The tool checks the source header, available MIME type, and browser decoding before processing.

Frequently asked questions

How is cropping different from resizing?

Cropping keeps a selected area and removes the rest. Resizing changes image dimensions. Compression targets file bytes.

Can I crop to an exact size?

Yes. Enter whole-pixel Width and Height values, along with Left and Top coordinates. The rectangle must fit within the source and differ from the full image.

Will a transparent background remain transparent?

PNG or WebP transparency may survive where supported. JPG does not support transparency, so inspect the downloaded result.

Will cropping make my file smaller?

Not necessarily. Re-encoding can make the output file larger or smaller than the original.