Scan a QR Code from an Image
No camera? Scan a QR code straight from a screenshot or saved photo — free and right in your browser.
拖入包含QR码的图片
拖放、粘贴或选择截图或照片
PNG · JPG · WebP · GIF · BMP — 在您的设备上读取
Scan a QR code without a camera
You don't always have the code in front of you to point a camera at — it might be a screenshot someone sent, an image in a PDF, or a photo already in your gallery. This tool scans the QR code directly from that image file, so you never need the live camera.
It is the perfect fix on a desktop, or when the code is on the same screen you're using. Just upload, drag, or paste the image and the code is decoded instantly, with the link or text shown and ready to copy.
How to scan a QR code from an image
- Open Read. Use the Read tab at the top of the tool.
- Add your image. Drop in the screenshot or photo, choose a file, or paste it from your clipboard.
- Read the code. The contents appear right away — copy the text or open a link.
- Scan another. Load a new image any time to scan again.
Crop tight if a busy image fails
If a busy screenshot doesn't decode on the first try, crop it down so the QR code fills most of the frame, then scan again. A clear, well-lit code with a little surrounding margin reads most reliably.
什么让一张图像能被解码（什么不能）
从静态图像而不是实时相机读取二维码，会把全部重担都压在图片的质量上。以下是决定它能否解码的因素：
| 因素 | 有助于解码的因素 |
|---|---|
| 清晰度 | 代码必须对焦清晰；运动模糊或一张发虚的照片会把模块糊在一起而失败。 |
| 分辨率 | 代码应占据画面的相当一部分，以便每个微小的模块跨越多个像素——如果它很小就靠近裁剪。 |
| 静区 | 代码周围一点空白边距有助于边缘检测；紧贴图案裁剪的图像往往读不出来。 |
| 角度与眩光 | 大致正对的拍摄读取效果最好；陡峭的角度、弯曲的表面和反光都会扭曲网格。 |
让顽固的图像被扫描
- 如果繁忙的屏幕截图失败，请裁剪它使二维码占据画面的大部分，在其周围保留细窄的边距，然后重新扫描。
- 解码完全依据你提供的图像进行，因此没有实时相机环节——它在桌面上，或当代码已经在你的屏幕上时尤为理想。
- 对于印刷代码的照片，请在均匀的光线下不带闪光眩光地正面重新拍摄，而不是以一定角度，因为角度会使方形网格变形。
- 非常小、暗淡或被严重压缩的图像会丢失解码器所需的细微模块细节；一份更清晰或更大的副本是最快的解决办法。
More QR code tools
常见问题
Can I scan a QR code without a camera?
Yes. This tool scans the code straight from an image file, so no camera is needed — ideal on a desktop or from a screenshot.
Can I scan a QR code from a screenshot?
Absolutely. Upload, drag, or paste the screenshot and the code is read instantly.
What if the scan doesn't work?
Crop the image so the code fills more of the frame, or use a sharper, better-lit version, then try again.
Where is my image processed?
Building or reading a QR code happens in your browser, so the file is created on your own device. How any data associated with the tool is handled is described in our privacy policy.
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