Build an Image Cropper in JavaScript: Canvas API Guide
Implement a drag-and-crop image tool using the HTML5 Canvas API. Includes mouse events, ratio locking, and PNG export.
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Tags: image, javascript, crop
JavaScript Image Cropper: Cropper.js Guide When you need to add image cropping to a web application, the two most common choices are Cropper.js and react-image-crop. Both are production-quality libraries, but they work differently and suit different use cases. This guide covers Cropper.js setup, its core options, how to extract the cropped data, and when to reach for react-image-crop instead. Why Use Cropper.js Cropper.js is a vanilla JavaScript library — it works without any framework. You can use it in plain HTML projects, jQuery applications, Vue, Angular, or any React setup that prefers imperative control. It provides: A drag-and-zoom crop interface with handles Aspect ratio locking Zoom controls Rotate and flip operations Canvas export (for immediate download or further processing)…
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