A QR code, also known as a Quick Response code, is a type of 2D barcode that contains machine-readable information. It can be scanned using a QR code reader or a smartphone. Nowadays, QR codes are widely used for purposes such as product information, marketing, mobile payments, and access control. Today, in this article, we will see scanning QR code images online and using a camera. Additionally, we will explore how to scan QR codes programmatically.
Free Online QR Code Scanner
To scan QR codes online, you can use the free online scanner by GroupDocs. All you need to do is follow these simple steps for scanning and decoding:
- Drag and drop your QR code image to the designated area or upload it.
- After the upload, the QR code file will be decoded, and the resulting information will be shown.
- You have the option to copy the scan result for your use.
- Additionally, you can copy the URL of the scan result to save it for later reference.
Scan QR Code Online using Camera
When using mobile devices, taking photos with the built-in camera is a convenient option. To scan QR codes using the camera, simply follow these steps:
- Change the scanning source to Camera.
- Direct your camera towards the QR code and press the Take a Picture button.
- You can choose to copy the scan result for further use.
- Additionally, you have the option to copy the URL of the scan result and save it for later usage.
QR Code Scanning – Developer’s Guide
Are you someone involved in software development or someone with an interest in creating your own QR code scanner? If so, you have the option to choose from various standalone libraries. It is recommended to carefully explore the available options and select the platform that aligns with your requirements for developing an online tool capable of reading or scanning QR codes.
Scan QR Code with C# using .NET
Here’s how to scan QR codes with C# using GroupDocs.Parser for .NET:
- Integrate the library into your application.
- Utilize the following code to scan the QR code:
You can gain further insight into developing QR Code Scanner using C#.
Scan QR Code with Java
Java developers can use the steps and the below-mentioned code snippet to read QR codes with Java using GroupDocs.Parser for Java:
- Set up and download the library in your application.
- Use the provided source code to scan the QR code image:
For more information, refer to the article on how to scan QR codes with Java.
FAQs
How to Scan QR Code if is not an image file?
It may seem strange or different to us, but the API or tool can handle many different types of documents for scanning. These include PDFs, word-processing documents, presentations, and different image formats.
How quick is this online scanning tool?
This free online tool is quick and efficient and provides scanning within seconds.