Apply a License Key in IronBarcode

Curtis Chau

Updated: April 22, 2026

Download IronBarcode

• NuGet Download
• DLL Download

• ---

• Start Free Trial

Copy for LLMs

• Copy for LLMs

  Copy page as Markdown for LLMs
  # Apply a License Key in IronBarcode The license key is a long string that includes an expiration date, marking the end of support. The license is perpetual, meaning you can continue using it for versions released before this date. Please ensure it is copied correctly, without any spaces. ```txt IRONBARCODE-MYLICENSE-KEY-1EF01-RENEW.SUPPORT.01.JAN.2050 ``` The most robust method of applying a license key is directly in your code before the library is called. ```csharp // Apply the IronBarCode license key directly in your code before using the library IronBarCode.License.LicenseKey = "IRONBARCODE-MYLICENSE-KEY-1EF01-RENEW.SUPPORT.01.JAN.2050"; ``` For more options, including **web.config**, **app.config**, and **appsettings.json**, please refer to the following article for more information: [Using IronBarcode License Keys](https://ironsoftware.com/csharp/barcode/get-started/license-keys/).

• ---

• Open in ChatGPT

  Ask ChatGPT about this page
• Open in Gemini

  Ask Gemini about this page
• Open in Grok

  Ask Grok about this page
• Open in Perplexity

  Ask Perplexity about this page

Share

• Share on Facebook
• Share on X (Twitter)
• Share on LinkedIn

• ---

• Email article

The license key is a long string that includes an expiration date, marking the end of support. The license is perpetual, meaning you can continue using it for versions released before this date. Please ensure it is copied correctly, without any spaces.

IRONBARCODE-MYLICENSE-KEY-1EF01-RENEW.SUPPORT.01.JAN.2050

IRONBARCODE-MYLICENSE-KEY-1EF01-RENEW.SUPPORT.01.JAN.2050

The most robust method of applying a license key is directly in your code before the library is called.

// Apply the IronBarCode license key directly in your code before using the library
IronBarCode.License.LicenseKey = "IRONBARCODE-MYLICENSE-KEY-1EF01-RENEW.SUPPORT.01.JAN.2050";

// Apply the IronBarCode license key directly in your code before using the library
IronBarCode.License.LicenseKey = "IRONBARCODE-MYLICENSE-KEY-1EF01-RENEW.SUPPORT.01.JAN.2050";

' Apply the IronBarCode license key directly in your code before using the library
IronBarCode.License.LicenseKey = "IRONBARCODE-MYLICENSE-KEY-1EF01-RENEW.SUPPORT.01.JAN.2050"

' Apply the IronBarCode license key directly in your code before using the library
IronBarCode.License.LicenseKey = "IRONBARCODE-MYLICENSE-KEY-1EF01-RENEW.SUPPORT.01.JAN.2050"

For more options, including web.config, app.config, and appsettings.json, please refer to the following article for more information: Using IronBarcode License Keys.

Curtis Chau

Chat with engineering team now

Technical Writer

Curtis Chau holds a Bachelor’s degree in Computer Science (Carleton University) and specializes in front-end development with expertise in Node.js, TypeScript, JavaScript, and React. Passionate about crafting intuitive and aesthetically pleasing user interfaces, Curtis enjoys working with modern frameworks and creating well-structured, visually appealing manuals.

...

Read More