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Syncfusion License Key Sharing

Is there a way to keep syncfusion license key hidden or encrypted when source shared with a client. Can the client reuse the same key for their own projects? 

9 Replies

JM Jeyaseelan M Syncfusion Team March 16, 2023 04:43 AM UTC

Hi Ponejai,

Q1) Is there a way to keep syncfusion license key hidden or encrypted when source shared with a client.

A1) As of now, we don’t have any option to secure the license key from exposing. We have implemented this licensing (key) validation system to avoid using our products inadvertently, so there is no need to add it in a secure way. 

We are just using this licensing concept to prevent customers from using our controls without their knowledge.  

So, you can directly use license key in your code for your internal development works\publishing your application to production

Q2) Can the client reuse the same key for their own projects?

A2) If you are trying to use our components and would like to push your source to a public repository\or any open-source repositories or sharing you source project to your customers, you should not push\provide your Syncfusion license keys publicly along with your sources. You should push\provide your source without Syncfusion license keys.

You can inform the users to sign-up to us (Syncfusion) and get a trial or valid license to use our products.

You can distribute your deployed applications, but you shouldn’t distribute our license keys in a public environment or through your sources.

Please let us know if you’ve any queries.


Jeyaseelan M

PO ponejai April 21, 2023 05:55 PM UTC

Thanks for your reference

Wha is the purpose of optional "Project" text box when downloading the License Key. Is that used to bind the key to a specific project so it can not be used by another project? 

Thanks & best regards,

Attachment: syncfusion_key_97db803.zip

PO ponejai April 21, 2023 07:12 PM UTC

Also can not see Lincense Enabler tool download link anymore or with Syncfusion Control panel... 

JM Jeyaseelan M Syncfusion Team May 2, 2023 02:27 PM UTC


License Enabler is a tool used to enable a license for your project(s)

We do not use this tool in the latest version as We have introduced a new licensing system starting with version 16.2.0.x release of Essential Studio.

Refer to this link for more information’s about license key,

Overview of Syncfusion license and unlock keys - Syncfusion

Refer to this link for generating license key,


Refer to this link for registering license key,


If the license key is not properly registered, the below license errors will be displayed.

Could you please let us know what you are trying to use?

PO ponejai May 3, 2023 09:06 PM UTC

Trying to use ASP.Net MVC EJ2 in one project. Since I have to share the source code, I do not want the reuse of Key in the code base by the client. So it is possible to reestrict the key to a specific project,so that it can not be reused in any other project?

PO ponejai May 4, 2023 12:02 PM UTC

My problem is this line

Syncfusion.Licensing.SyncfusionLicenseProvider.RegisterLicense("YOUR LICENSE KEY"); 

Since the code is shared with the client, he has access to my key and can reuse in other projects. Can I generate & restrict the key to a specific project. I was interested as I could see an optional Project Name in the generate license window..

thanks & best regards,


Attachment: lic_dd6a738f.rar

KS Kaviyapriya Suriamoorthy Syncfusion Team May 4, 2023 03:27 PM UTC

Hi ponejai,


There are no project-specific restrictions for generating the license key. You couldn't cancel, invalidate, or restrict the generated keys on your side. If you generate Syncfusion keys from the valid purchased license section, those Keys will not expire, cancel, or invalidate until your license period. Currently, there is no support for project-specific restrictions on the Syncfusion License keys.




PO ponejai May 7, 2023 06:30 AM UTC

but does a key generated for a specific version of Syncfusion works for another version? like downbloaded and generated for, will it work on both & 21.1.35 &

JM Jeyaseelan M Syncfusion Team May 8, 2023 10:58 AM UTC

Ponejai, no, the license key for v20.3.0.* will not work for v20.2.0.*, v20.4.0.* or v21.*

Syncfusion license keys are version and platform specificSo, you need to generate and register the license key for every new volume releases.

Example:  20.2.0.*, 20.3.0.*, 20.4.0.*, 21.*

You do not need to update the license key on a regular basis for every weekly, patch or service pack releases. You need to update the license key in your project for every major volume release upgrade only

Syncfusion will have only four major releases (Volume releases) in a year. So, you might have needed to change the license key four times in a year.

Refer to the below KB article to know which version license key should use in the application,


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