Crop Image

What is the Online Image Cropper?

The Online Image Cropper is a free, privacy-focused tool that lets you trim and cut images right in your browser. Select any region of a photo — freeform or with a fixed aspect ratio — and export only the portion you need. It supports PNG, JPG, and WebP formats and processes everything locally using the HTML5 Canvas API. Your images are never uploaded to any server, so sensitive screenshots, personal photos, and confidential documents stay completely on your device. There is no sign-up, no watermark, and no usage limit — crop as many images as you like, entirely for free.

When to Use the Image Cropper

Cropping is essential whenever you need to remove unwanted areas or focus attention on a specific part of an image. Common use cases include:

• Trimming whitespace or borders from scanned documents and screenshots.
• Cutting out a product from a cluttered background for an e-commerce listing.
• Creating square or 16:9 crops for social-media posts, stories, and cover photos.
• Isolating a specific section of a chart, map, or diagram for a presentation.
• Removing sensitive information from the edges of a screenshot before sharing.

How It Works

After you drop or select an image, the browser loads it via the FileReader API and displays it in an interactive preview. You drag to define a crop region — optionally locking the aspect ratio — and the tool highlights the selected area. When you confirm, the HTML5 Canvas API draws only the cropped portion onto a new canvas sized to match your selection, then exports the result as a downloadable file in your chosen format. The entire operation happens on your device through the Canvas API with no network requests. That means cropping is near-instant, works offline once the page is loaded, and involves absolutely no data collection or third-party processing.