QR Code Generator
Generate QR codes from text or URLs. Customize size. Download your QR code image.
How the QR Code Generator works
Use the QR Code Generator to convert text or URLs into scannable QR codes. First, enter the data you want to encode into the "Text or URL" input field. This can be a website address, plain text, an email address, or Wi-Fi login details. Next, specify the desired size for your QR code image in the "Size (px)" field. This value determines the width and height of the generated image in pixels. A larger size results in a higher-resolution image. After entering your data and preferred size, the tool will display the QR code. You can then download the generated QR code image to use it in print or digital media. The tool uses QR byte mode with Reed–Solomon error correction (level M) for reliable scanning.
Formula used
QR byte mode with Reed–Solomon error correction (level M)
| Symbol | Meaning |
|---|---|
| text | the text, link or Wi-Fi details to encode |
| size | rendered image size in pixels |
The pattern is generated in your browser and drawn to a canvas — nothing is uploaded. Level M error correction keeps the code readable even if a fifth of it is damaged or covered.
Inputs used: Text or URL, Size (px).
Worked example
Here is an example of how to generate a QR code for a website link:
- Enter "https://toolfactory.pages.dev" into the "Text or URL" input field.
- Set the "Size (px)" input to "256".
- The tool will display a QR code representing the entered URL at a size of 256x256 pixels. You can then download this image.
Result:
- payload: https://toolfactory.pages.dev
- size: 256
Frequently asked questions
- What is a QR code?
- A QR code is a two-dimensional barcode. It stores information that can be read by a smartphone camera or QR code scanner.
- What kind of data can a QR code store?
- QR codes can store various types of data. This includes URLs, text, contact information, Wi-Fi network details, and SMS messages.
- Can I change the color of the QR code?
- This tool generates standard black and white QR codes. Color customization options are not available with this generator.
- Is there a limit to the amount of text I can encode?
- Yes, QR codes have a data capacity limit. For optimal scanning, keep the encoded text or URL concise.
- What formula does the QR Code Generator use?
- It uses QR byte mode with Reed–Solomon error correction (level M), where text is the the text, link or Wi-Fi details to encode; size is the rendered image size in pixels.
- How do I read the result?
- The pattern is generated in your browser and drawn to a canvas — nothing is uploaded. Level M error correction keeps the code readable even if a fifth of it is damaged or covered.