Image guide
How to Crop an Image Precisely
Cropping removes pixels outside a selected rectangle. It can improve composition, fit a required aspect ratio, or isolate a useful detail without stretching the image.
Open the Image Cropper toolQuick answer
A crop changes canvas dimensions but does not enlarge the selected pixels. Cropping a small area can leave too little resolution for the final use.
Plan the crop before cutting
Identify the subject, required aspect ratio, and final placement. Leave room around faces, text, and objects that should not feel cramped. Consider how responsive layouts may clip the image again.
Save a copy rather than replacing the original. Cropped-away content cannot be restored from the export.
How to crop image files
- Upload the source and check its pixel dimensions.
- Set the rectangle by dragging or enter left, top, width, and height.
- Choose a format, crop, review the preview, and download.
Coordinates begin at zero in the top-left corner. PNG keeps transparency, JPG fills it with white, and quality-controlled WebP is lossy.
Use aspect ratio intentionally
Aspect ratio is width divided by height. A square is 1:1, a traditional landscape frame can be 4:3, and widescreen is often 16:9. Choose based on the destination.
For a 16:9 crop at 1600 pixels wide, use 900 pixels high. If it does not fit, reduce both dimensions while keeping the ratio.
Composition and quality checks
Place important eyes or horizons deliberately. Check that captions or platform overlays will not cover key content.
Cropping does not add detail. A 300-pixel selection will not become a crisp 1200-pixel image without separate upscaling and interpolation.
Try it in your browser
The free ToolPixels Image Cropper processes your file locally in the browser. Review the result and keep the original file.