二维码扫描
从上传的图片中解码二维码。
文件
About this tool
从图片文件或摄像头解码二维码,在打开链接前先查看内容。无需上传,二维码照片始终留在你的设备上。
Why use it
- 显示二维码的真实目标地址,便于及早发现钓鱼链接。
- 可读取截图、照片和下载图片中的码。
- 即时显示结果,一键复制解码文本。
Common use cases
- 在手机上打开前,先确认海报上的码指向哪里。
- 找回之前生成但未保存的二维码内容。
- 从访客 Wi-Fi 码中提取连接信息。
Tips
- 清晰、光线充足的照片比模糊裁剪更容易成功解码。
- 若失败,可尝试拉正图像,使方块保持水平。
使用方法
- 选择包含二维码的图片。
- 自动解码。
- 在下方查看结果。
常见问题
- How do I scan a QR code from an image?
- Drop a photo or screenshot of the code and the contents are decoded instantly in your browser.
- Is the image sent to a server?
- No. Decoding happens locally with JavaScript, so the picture of your code stays on your device.
- Can I check a link before opening it?
- Yes. The decoded text is shown first so you can review a URL before deciding to trust it.
- What if the code will not scan?
- Use a sharper, well-lit image with the whole code visible and a little white margin around it.
- Does it read Wi-Fi and contact codes?
- Yes. The raw payload is shown, including Wi-Fi, vCard, email and phone formats.
- Can I use my camera?
- If your browser allows camera access you can scan live; otherwise upload an image of the code.