Overview

QR Code Repair enhances blurry, low-contrast, reflective, or noisy QR code images to improve scan success.

Features

• Upload or drag a QR code image.
• Adjust scale, brightness, contrast, and threshold.
• Apply grayscale, binarization, median denoise, and black-white inversion.
• Verify whether the repaired image can be scanned.
• Download the repaired result as PNG.

Steps

1. Upload the QR code image.
2. Tune scale, threshold, brightness, and contrast.
3. Click Repair and review the output.
4. Run Scan Check to confirm the QR content.
5. Download the repaired PNG image.

Privacy

Image processing and QR scanning run locally in your browser. Images and decoded content are not uploaded.