Crop Images Online Free – Private Browser-Based Cropper

Yes. The crop box can be locked to standard ratios like 1:1, 16:9, 4:3, or set to a custom width:height value. When locked, dragging the crop handles maintains that exact proportion, so you always crop within your target format.

Cropping removes pixels around the edges but keeps the remaining area at full resolution. Your image doesn't get compressed or degraded. If you need a smaller file afterward, use the Image Resizer after cropping.

The crop box constrains itself to the largest area that fits within your image at the chosen ratio. You can then reposition the box by clicking and dragging inside it to select the best composition before exporting.

Yes. If your source image has an alpha channel (transparency), the cropped output preserves it. Export the result as PNG to keep the transparent areas intact.

Cropping removes content from the edges to change the frame — you lose parts of the image to get a different shape. Resizing scales the entire image up or down without removing any content. Use cropping to change composition; use resizing to change display size.

1:1 for Instagram square posts and profile pictures, 16:9 for YouTube thumbnails and Facebook covers, 4:5 for Instagram portrait feed posts that maximize screen real estate, 9:16 for Stories and Reels, and 2:3 for Pinterest pins.

The tool supports standard axis-aligned cropping. For rotated crops, we recommend straightening your image first using a photo editor, then cropping to your target ratio here.