Differences between Blazor Server and Blazor WebAssembly App

What Is Blazor

The blazor world is made by two different words Browser and Razor when combined is called Blazor. It is a single-page application that runs or executes on the browser.

Blazor has two main types of hosting models.

Blazor WebAssembly Application (WASM)
Blazor WASM is a single-page app (SPA) framework that builds an interactive client-side web app in .NET. The developer can handle any component to write code in .NET and C#, that's why blazor is a component-based application. It executes in any browser, basically blazor WSAM is a client-based application it's run on the client side.
Blazor Server
Blazor server builds an interactive server-side web app in .NET. The developer can handle any component to write code in .NET and C#. basically, blazor server is a server-side application it's used for maintaining a server of an application.

For example, Blazor server application

What are the advantages of server application?

The application executes within ASP.NET Core application on the server, hence all the .NET Core API is available for use along with its tooling capabilities.
The Server only serves HTML and JavaScript to the client, not the .NET codebase.
Significantly smaller download size and the application load much faster compared to WebAssembly.
Thin client support, the application can be used with all types of browsers with or without WebAssembly support.

What are the disadvantages of server application?

Every user interaction requires a trip to the server.
The application will stop working if the connection is lost with the server.
Handling multiple users is challenging as the server needs to manage multiple client connections and client states.
ASP.NET Core server is required to serve the application making server-less deployment not possible.

For example, Blazor WebAssembly application

What are the advantages of webassembly application?

The application can leverage the power of CPU and can give an almost native app-like performance.
The application does not require the server to perform any of its operations. Once downloaded, the application is fully functional.
As no ASP.NET Core Web Server is required to execute the application, it can be distributed using CDN making server-less deployment possible.

What are the disadvantages of webassembly application?

The application takes a long time to load as the download size is larger.
The application is restricted as per browser capabilities.
A browser supporting WebAssembly can only execute the application.
Debugging capabilities are currently limited.

Differences between Blazor webassembly and Blazor Server application

Conclusion

Anyone can switch to a new technology which is blazor, this is very important or mandatory to understand the differences between blazor server and blazor webassembly applications.