Hi Alex,
Sorry for the delay in getting back to you.
Query: Is it possible with syncfusion and blazor to create customs Components ?
Yes, it is possible to build the Syncfusion Blazor components as custom component in Blazor application.
Please refer the below documentation for Blazor components and its functionalities.
we have created a simple sample using Syncfusion Blazor component as custom component, please refer the below link
Regards,
Jesus Arockia Sankaran S