Experience Lightning-Fast Chat and Seamless User Experience with SignalR and Blazor

Harness the combined strength of SignalR and Blazor to build high-performance web applications delivering real-time communication, responsiveness, and scalability.

SignalR and Blazor are two highly effective tools that can be used to construct interactive and real-time web applications. In this blog, we will explore what SignalR and Blazor are, how they work, and some of the benefits and limitations of using them.

Introduction of SignalR and Blazor


SignalR is a real-time web framework for creating interactive web applications. It allows the server to push data to connected clients in real-time, enabling developers to create highly responsive applications. SignalR utilizes WebSockets as its default transport protocol.

It can be used in a variety of scenarios, such as real-time chat applications, collaborative editing tools, and real-time dashboards, and can be integrated with other web frameworks.


Blazor is a web framework for constructing client-side web applications utilizing C# and .NET. It lets developers to construct web applications that run entirely in the browser, excluding the need for a server-side component. Blazor utilizes WebAssembly as its runtime, which allows it to run .NET programming language straight in the browser.

The best advantages of utilizing Blazor is that it enables developers to construct rich, interactive web applications utilizing similar language and tools they make use of to create desktop and mobile applications.

Why SignalR and Blazor?

By combining the two technologies we can achieve the below benefits;

  • Real-time updates - SignalR enables real-time communication between server and client without the need for the client to continually poll the server.
  • Reduced server load - By using SignalR, the server load can be reduced as the server only needs to send updates when they are available.
  • Scalability - SignalR can be used to scale out an application across multiple servers, ensuring that it can handle many users without sacrificing performance.
  • Simplified development - By using Blazor, developers can write code that runs on both the client and server.
  • Single-page applications - Blazor enables the creation of single-page applications, where the user interface is updated dynamically without the need for a full page reload.

Limitations of SignalR and Blazor

While SignalR and Blazor are powerful technologies, they do have some limitations.

They are:

  • Security - SignalR does not provide built-in authentication or authorization mechanisms.
  • Interoperability - SignalR is a .NET technology and may not be as interoperable as other technologies like WebSockets.
  • Browser Support - Blazor currently requires a modern browser with WebAssembly support.
  • Server Dependency - Blazor Server apps require a continuous connection to the server, which may lead to latency and performance issues.

To discuss further and to find out more on implementing this powerful duo driving the future of web development in your organization, feel free to contact us using the form below.

Contact us:

By submitting this form, I understand that my data will be processed by Sogeti as described in the Privacy Policy.*

  • Akhil Sasi
    Akhil Sasi
    Senior Consultant, Digital and Development at Sogeti Ireland