How to Create a QR Code: A Simple Step-by-Step Guide

A QR code is a machine-readable code that can store information such as a website address, text or other supported data.

When scanned with a compatible camera or QR code reader, the encoded information can be displayed or used by the scanning device.

The information a QR code can contain depends on the QR code generator and the type of data it supports.

A common use is encoding a website URL so that someone can open a webpage by scanning the code.

QR codes can also be used for text and other supported types of information. Check the generator's available options before creating your code.

Before creating a QR code, decide what information you want it to provide when scanned.

For example, you might want the QR code to open a website, display text or provide another supported piece of information.

Knowing the destination or content first makes it easier to choose the appropriate QR code type and enter the correct information.

Open a QR code generator that supports the type of information you want to encode.

The [MartTools QR Code Generator](/tools/qr-generator) provides a simple way to create a QR code from supported input.

Choose the appropriate QR code option before entering the information you want to encode.

Enter the exact information you want the QR code to contain.

If you are creating a QR code for a website, check the URL carefully before generating the code. A typo in the destination address can cause the QR code to lead to the wrong location.

For text or other supported information, review the content for spelling, formatting and accuracy before continuing.

After entering the information, generate the QR code using the generator.

The generator converts the supplied information into the visual QR code pattern that compatible scanning devices can read.

The resulting code can then be reviewed before you use or distribute it.

Review the generated QR code before publishing or printing it.

Make sure the encoded information is correct and that the QR code is displayed clearly enough to be scanned.

Testing the finished QR code with a compatible camera or QR scanner is a useful way to confirm that it leads to the intended content.

Once you have confirmed that the QR code works, save the generated image in a format suitable for your intended use.

For digital use, make sure the saved image remains clear when displayed on the intended screen or platform.

For printed materials, use a sufficiently clear image and make sure the QR code will remain readable at the final printed size.

A QR code needs to be visible and accessible to the people who are expected to scan it.

Consider the size, contrast, surrounding space and placement of the code when adding it to a poster, document, package, website or other material.

Avoid placing the code where it can easily become distorted, obstructed or difficult to reach with a camera.

Always test an important QR code before distributing it widely.

Scan the final version rather than relying only on the original information entered into the generator. This helps confirm that the saved, printed or displayed version still works as intended.

If the QR code points to a website, also check that the destination page opens correctly.

Website URLs are one of the most common uses for QR codes.

Copy the complete URL you want people to visit, enter it into the QR code generator and create the code. Check the resulting code by scanning it before publishing.

If the destination URL changes later, a QR code that directly contains the original URL may no longer lead to the new destination. Consider the destination carefully before printing large quantities of QR codes.

Printed QR codes need to remain readable after being reproduced on the final material.

Avoid making a QR code unnecessarily small, stretching it out of proportion or reducing its contrast against the background.

Always test the printed version when the QR code will be used on important materials.

QR codes can also be displayed on websites, presentations, digital documents and other screens.

Make sure the code has enough visual clarity and size for the expected scanning distance. A code displayed on a small screen may need different sizing from one displayed on a large presentation.

A common mistake is entering the wrong destination or information before generating the code. Always review the source content first.

Another mistake is failing to test the final QR code after downloading, printing or placing it into a design.

QR codes can also become difficult to scan when they are stretched, distorted, too small, low in contrast or placed against a visually busy background.

Decide what information the QR code should contain.

Choose a generator that supports the required QR code type.

Enter the information carefully and verify it before generating.

Generate the QR code and review the result.

Test the finished QR code with a compatible scanner.

Save it in an appropriate format and maintain its proportions.

Make sure the final printed or displayed version remains clear and easy to scan.

The [MartTools QR Code Generator](/tools/qr-generator) provides a convenient way to generate a QR code from supported information.

Enter the content you want to encode, generate the code and test the result before using it on your website, document, presentation or printed material.

For a broader explanation of QR code generators and their options, see the [QR Code Generator Guide](/blog/qr-code-generator-guide).