What is Crop Image Online?
Crop Image Online removes unwanted areas from your images by letting you select a rectangular region to keep. Drag the crop handles to frame your subject, or type exact pixel coordinates for precision work. The tool supports preset aspect ratios — 1:1 for profile pictures, 16:9 for video thumbnails, 4:3 for presentations, 3:2 for photo prints. It handles JPEG, PNG, WebP, and AVIF files. Product photographers use it to isolate items from cluttered backgrounds. Social media managers crop images to fit specific platform dimensions. Real estate agents crop property photos to highlight key features. Everything runs in your browser. The original image stays untouched on your device — you download only the cropped result.
Crop Image Online Formula
The crop operation extracts a pixel-perfect rectangular region from your source image.
Region Selection
You define the crop area by dragging handles on the image preview, or by entering exact coordinates: X offset, Y offset, width, and height. Aspect ratio locks keep your selection proportional to common formats.
Pixel Extraction
The tool creates a new canvas with the exact dimensions of your crop region. It copies only the pixels inside the crop boundary from the source image — everything outside the selection is discarded.
Output Generation
The cropped canvas is encoded in your chosen format. The output file contains only the selected region at full quality. File size drops proportionally to how much of the image you removed.