1. IronQR
2. Get Started
3. Using License Keys

Using IronQR License Keys

Chaknith Bin

Updated:June 22, 2025

How to Get a License Key

Adding an IronQR license key allows you to deploy your project live without restrictions or watermarks.

You can buy a license key or sign up for a free 30 day trial key here.

Step 1: Download the Latest Version of IronQR

Install via NuGet

Install the latest version of the IronQR NuGet Package using the following command:

Install-Package IronQR

For more information, visit the NuGet package page for IronQR.

Install via DLL

As an alternative, the IronQR.Dll can be downloaded and added to your project as a reference.

Step 2: Apply Your License Key

Set your license using code

Add the following code at the startup of your application, before using IronQR, to set your license key:

// Set the license key for IronQR before using the library
IronQR.License.LicenseKey = "IronQR-MYLICENSE-KEY-1EF01";

// Set the license key for IronQR before using the library
IronQR.License.LicenseKey = "IronQR-MYLICENSE-KEY-1EF01";

' Set the license key for IronQR before using the library
IronQR.License.LicenseKey = "IronQR-MYLICENSE-KEY-1EF01"

Set your license using Web.Config or App.Config

To apply a key globally to your application using Web.Config or App.Config, add the following key to your config file in appSettings:

<configuration>
  ...
  <appSettings>
    <!-- Add your IronQR License Key here -->
    <add key="IronQR.LicenseKey" value="IronQR-MYLICENSE-KEY-1EF01"/>
  </appSettings>
  ...
</configuration>

<configuration>
  ...
  <appSettings>
    <!-- Add your IronQR License Key here -->
    <add key="IronQR.LicenseKey" value="IronQR-MYLICENSE-KEY-1EF01"/>
  </appSettings>
  ...
</configuration>

Note: There is a known licensing issue with IronQR versions released before 2024.3.2 on projects:

• ASP.NET projects
• .NET Framework version >= 4.6.2

The key stored in a Web.config file may NOT be picked up and used by the product. Visit the troubleshooting article to learn more.

Ensure that IronQR.License.IsLicensed returns true to verify the license is applied successfully.

Set your license key using a .NET Core appsettings.json file

To apply a key globally to your .NET Core application:

• Add a JSON file to your project called appsettings.json in the root directory.
• Add a IronQR.LicenseKey key to your JSON config file. The value should be your license key.
• Ensure the file property Copy to Output Directory is set to Copy always.

File: appsettings.json

{
    "IronQR.LicenseKey": "IronQR-MYLICENSE-KEY-1EF01"
}

Step 3: Test your key

Test if your key has been installed correctly using the following code:

// Validate the license key
bool result = IronQR.License.IsValidLicense("IronQR-MYLICENSE-KEY-1EF01");

// Check if IronQR is licensed successfully
bool isLicensed = IronQR.License.IsLicensed;

// Validate the license key
bool result = IronQR.License.IsValidLicense("IronQR-MYLICENSE-KEY-1EF01");

// Check if IronQR is licensed successfully
bool isLicensed = IronQR.License.IsLicensed;

' Validate the license key
Dim result As Boolean = IronQR.License.IsValidLicense("IronQR-MYLICENSE-KEY-1EF01")

' Check if IronQR is licensed successfully
Dim isLicensed As Boolean = IronQR.License.IsLicensed

Step 4: Get started with your project

Follow our tutorial on how to Get Started with IronQR.

Questions?

If you have any questions, reach out to support@ironsoftware.com

Chaknith Bin

  Chat with engineering team now

Software Engineer

Chaknith works on IronXL and IronBarcode. He has deep expertise in C# and .NET, helping improve the software and support customers. His insights from user interactions contribute to better products, documentation, and overall experience.

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