Document Scanner & Crop

Upload a photo of a document to automatically detect, crop, and enhance it

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Transform Photos into Professional Documents

Our free online document scanner uses advanced AI technology to automatically detect document edges, correct perspective distortion, and enhance readability. Perfect for scanning receipts, contracts, notes, whiteboards, and any paper document with your smartphone camera.

Automatic Edge Detection

Our AI automatically detects document edges and corners using advanced computer vision algorithms. Works with any angle or perspective.

Perspective Correction

Transforms angled photos into straight, scanner-like documents using homography warping. Get perfect rectangular documents every time.

Smart Enhancement

Automatic white balance, shadow removal, and text sharpening. Choose from color, black & white, or high contrast modes for optimal results.

How to Use the Document Scanner

Click the "Upload Document Photo" button or drag and drop an image of your document. The tool works best with clear photos taken from above. You can scan receipts, contracts, whiteboards, notes, business cards, or any paper document.

The tool automatically detects the document boundaries and places corner markers. If needed, you can drag the blue corner markers to precisely match your document's corners. Our AI detection is highly accurate but manual adjustment is available for perfect results.

Select your preferred output mode based on your document type:

  • Color: Preserves original colors with enhancement - best for colorful documents, receipts with logos
  • B&W: Converts to black and white - ideal for text documents, contracts, and handwritten notes
  • High Contrast: Maximum contrast for difficult documents - perfect for faded or low-quality originals

Click "Process Document" to apply perspective correction and enhancements. The tool will straighten your document, remove shadows, and enhance text readability. Preview the result and download your professionally scanned document in high quality!

Why Use Our Document Scanner?

Completely Free

No subscription, no watermarks, no hidden fees. Scan unlimited documents for free.

100% Private

All processing happens in your browser. Your documents never leave your device.

No Installation Required

Works directly in your browser on any device. No app download needed.

Professional Quality

AI-powered edge detection and perspective correction for scanner-like results.

Frequently Asked Questions

Find answers to common questions about our document scanner

Our document scanner uses advanced computer vision algorithms to automatically detect the edges of your document in a photo. It then applies perspective correction (homography transformation) to straighten the document, removes shadows, enhances contrast, and sharpens text for a professional scanned appearance. All processing happens in your browser using JavaScript and HTML5 Canvas.

Yes! Our document scanner is completely free to use with no limitations. You can scan as many documents as you want without any watermarks, subscriptions, or hidden fees. All features are available at no cost.

Absolutely! All document processing happens entirely in your browser - your images are never uploaded to our servers. Your documents remain completely private and secure on your device. We cannot see or access any of the documents you scan.

You can scan any type of paper document including receipts, invoices, contracts, business cards, notes, letters, certificates, whiteboards, handwritten notes, forms, tickets, and more. The tool works best with rectangular documents that have clear edges.

We support all popular image formats including JPEG, PNG, WebP, HEIC, and more. You can upload photos taken with your smartphone, digital camera, or from any image file on your computer.

Yes! While our AI automatically detects document edges with high accuracy, you can manually adjust the four corner markers by dragging them to the exact corners of your document. This is useful for documents with unclear edges or complex backgrounds.

Choose Color mode for documents with important colors like receipts, colorful forms, or photos. Select B&W (black and white) for text-heavy documents like contracts or handwritten notes - this reduces file size and improves text clarity. Use High Contrast mode for faded, low-quality, or difficult-to-read documents that need maximum enhancement.

Yes! Our document scanner is fully responsive and works perfectly on smartphones, tablets, and desktop computers. You can take a photo with your phone's camera and scan it immediately in your mobile browser.

For best results: 1) Take photos in good lighting conditions. 2) Position the camera directly above the document when possible. 3) Ensure the entire document is visible in the photo with some background around the edges. 4) Keep the document as flat as possible. 5) Use a contrasting background (e.g., white paper on dark table).