QR Code Reader
Read a QR code from any image — upload, drag, or paste it and get the link or text instantly, free and 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
Read a QR code without an app
Sometimes a QR code is already in an image — a screenshot, a saved photo, a PDF page, or a poster you snapped. This reader decodes the code from that image and shows you exactly what it contains: a website link, Wi-Fi details, text, an email, or a phone number.
There is nothing to install. Upload, drag, or paste the image and the code is read on the spot, with a copy button for the result. If it is a link, you get a safe, clearly-labelled link you can choose to open.
How to read a QR code from an image
- Switch to Read. The reader is the second tab at the top of the tool.
- Add the image. Drop in a screenshot or photo, choose a file, or paste an image from your clipboard.
- See the result. The code's contents appear instantly — a link, text, Wi-Fi, and more.
- Copy or open. Copy the text, or open the link if you trust it.
Use a clear, well-lit image
For the most reliable read, use an image where the whole code is visible, in focus, and well lit, with a little margin around it. Very blurry, cropped, or heavily angled photos can be hard to decode — re-snap or re-crop if the first try fails.
解码后的文本意味着什么
当这个读取器解码一个代码时，它会向你显示存储的原始字符串。开头的前缀会告诉你该代码本来要做什么——以下是常见前缀的读法：
| 如果结果以…开头 | …则该代码是 |
|---|---|
| http:// or https:// | 一个网站链接——在这里显示为一个可点击、清晰标注的链接，你可以选择是否打开。 |
| WIFI: | 用于加入网络的 Wi-Fi 凭据（网络名称、安全类型和密码）。 |
| mailto: | 一封电子邮件——一个地址，通常带有主题和正文，旨在打开一封预填的草稿。 |
| tel: | 一个用于拨打的电话号码。 |
| SMSTO: or smsto: | 一条短信——一个号码，有时还带有预先写好的消息正文。 |
| (no prefix) | 纯文本——一条不附带任何操作的便签、代码或消息。 |
可靠地读取代码
- 读取器会一次性解码整张图像，因此它适用于屏幕截图、已保存的照片、导出为图像的 PDF 页面以及扫描件——而不仅仅是实时相机拍摄。
- 请像对待任何未知链接一样谨慎对待解码出的链接：本工具会清晰地标注它，并且从不自动打开它，因此你始终掌握控制权。
- 如果结果看起来像乱码而不是整洁的前缀，源代码可能已损坏或仅被部分捕获——重新拍摄或重新裁剪后再读取一次。
- Wi-Fi 结果会以纯文本暴露网络密码，这对该格式而言是正常的；只需留意谁能看到你的屏幕。
More QR code tools
常见问题
How do I read a QR code from a picture?
Switch to Read, then drop in the picture, choose a file, or paste it. The code is decoded and its contents are shown with a copy button.
Do I need an app to read a QR code?
No. This reader runs in your browser on any device — phone, tablet, or computer — with nothing to install.
It says no code was found — why?
The image may be too blurry, too small, cropped, or badly lit. Use a clearer image where the whole code is visible and 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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