By following this guide, you should never see a "Trial Expired" error again. Keep your license key secure, re-generate it when upgrading, and always test it before deploying to production.
If you've ever developed with Syncfusion Essential Studio, you've likely encountered the pivotal step of generating and registering a license key. It's the critical piece that transforms your application from a trial version with watermarks and pop-ups into a fully licensed, professional product. While the process is straightforward, understanding the nuances—from Syncfusion's evolving edition-based licensing to applying the key correctly across different frameworks—is essential.
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Whether you are using the streamlined page, managing keys across a CI/CD pipeline, or leveraging the free Community License for your startup, the system is robust and developer-friendly. By following the best practices outlined in this guide, you can ensure your Syncfusion-powered projects are always properly licensed and ready for production.
Before you can generate a license key, ensure you have the following: syncfusion generate license key
: Click Get License Key to receive your unique key string. For Version 30.x.x or Earlier (Platform-Based)
You can generate your license key by following these steps on the official Syncfusion website: Syncfusion website and log in to your account. Navigate to Downloads: Access the License & Downloads section if you have a paid license, or Trial & Downloads if you are using a trial. Select Version and Platform:
curl -X POST "https://api.syncfusion.com/licensing/v1/license" \ -H "Authorization: Bearer YOUR_ACCESS_TOKEN" \ -d '"licenseId": "YOUR_LICENSE_ID"'
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. By following this guide, you should never see
.NET Applications (Blazor, MAUI, ASP.NET Core, WinForms, WPF)
Without a valid license key, your applications might display a licensing banner or show trial restrictions. For more detailed information, you can refer to the Syncfusion Licensing FAQ Licensing FAQ – Get the license key - Help.Syncfusion.com
Select the (e.g., 2026 Volume 1) and Platform/Edition . Click GET LICENSE KEY . Step 4: Retrieve and Register
Her heart sank. The page showed “Community License — No key required for development.” It's the critical piece that transforms your application
Syncfusion.Licensing.SyncfusionLicenseProvider.RegisterLicense("YOUR_GENERATED_KEY_HERE"); Use code with caution. Copied to clipboard : javascript
Both licensing tiers require you to generate and register a license key in your application code.
Upgrading from one major version to another (e.g., from v25 to v26) without generating a new license key. Solutions:
: The site will display a long string; copy this for use in your application's registration code. Syncfusion Important Registration Notes Version Sensitivity
The page automates key generation based on the licenses linked to your account, eliminating manual selection for many cases.
In the Program.cs file of your Blazor WebAssembly project: