Razor vs. Blazor: Unraveling the Web Development Duel


Razor vs. Blazor

Razor and Blazor are two technologies that have emerged as major players in the rapidly changing field of web development, but they are often confused with one another. Despite having the same label, these technologies are used for very different things and come with their own sets of pros and cons. We’ll dive deep into the history and features of both Razor and Blazor so you can make an educated decision for your next web development project.

Understanding Razor

The Genesis of Razor

As a core component of ASP.NET, Razor has been around for quite some time. Microsoft’s markup syntax, Razor, can be used with the C# and VB.NET programming languages to create dynamic web pages. Its focus on server-side rendering makes it a natural fit for more conventional web apps.

How Razor Works

Razor’s core is a simple and easy-to-understand syntax for inserting C# code into HTML markup. This seamless integration between code and content within the same file simplifies server-side rendering. The server processes Razor files (which end in “.cshtml”) to generate HTML, which is then sent to the client’s browser.

Pros and Cons of Razor

Pros of Razor

Strong Server-Side Rendering: Razor performs admirably in server-side rendering, which is essential for the efficient operation of classic web applications.

Mature Ecosystem: A well-established ecosystem and strong community back up Razor because it is part of ASP.NET.

Strong Type Safety: Razor’s implementation in C# provides robust type safety and reduces the likelihood of runtime errors.

Cons of Razor

Limited Interactivity: Razor is primarily suited for static web pages and lacks the capability for building highly interactive web applications.

Steep Learning Curve: It can be difficult for newcomers to ASP.NET and the Razor syntax.

Introducing Blazor

The Rise of Blazor

Blazor, on the other hand, has only recently emerged as a viable option for creating websites. Microsoft’s open-source Blazor framework brings the functionality of.NET to the client. To make things easier for.NET fans, it allows programmers to use C# and.NET instead of JavaScript when creating web applications.

How Blazor Works

To facilitate the execution of C# code in the browser, Blazor introduces WebAssembly. Both Blazor Server and Blazor WebAssembly hosting models are available. Blazor WebAssembly compiles C# code to WebAssembly, allowing it to be executed locally on the client, while Blazor Server handles page rendering on the server.

Pros and Cons of Blazor

Pros of Blazor

C# Everywhere: Client and server-side code can be written in C#, providing a consistent and familiar experience for developers.

Rich Interactivity: Blazor’s modular design makes it possible to build dynamic, user-friendly websites.

Growing Community: The popularity of Blazor is on the upswing thanks to its growing community and rich ecosystem of third-party libraries and components.

Cons of Blazor

Learning Curve: There could be a learning curve for developers making the switch from JavaScript to Blazor.

Performance Overheads: The use of WebAssembly and larger file sizes can cause Blazor WebAssembly to introduce performance overhead.

Choosing the Right Tool

Razor or Blazor: Which One to Choose?

Your familiarity with.NET technologies and the needs of your project will determine which of these two you should use. Razor is a good option if you need to build a classic web app that uses server-side rendering. But if you want something cutting-edge, interactive, and client-side, Blazor is your best bet.


Razor and Blazor are two separate but equally important pillars of the web development world. Razor’s ability to perform rendering on the server means it will likely continue to be used for more conventional web apps. However, Blazor, by leveraging WebAssembly, gives programmers the tools they need to make dynamic, cutting-edge websites. Your familiarity with.NET and the requirements of your project should guide your decision between these two technologies.


Can I use Razor and Blazor together in a single project?

Although it’s possible on paper, it’s usually not a good idea because it opens the door to confusion and possible paradigm clashes.

Is Blazor suitable for building complex web applications?

Blazor’s component-based architecture and high degree of interactivity make it ideal for such ambitious web projects.

What are the key differences between Razor and Blazor?

The primary distinction is in their intended use and method of implementation. While Razor is used for rendering on the server, Blazor facilitates interaction on the client.

Which one is more popular, Razor, or Blazor?

Despite Blazor’s meteoric rise in popularity, Razor continues to be a mainstay of the ASP.NET ecosystem.

Is Blazor the future of web development with .NET?

It’s safe to say that Blazor is a major improvement over previous.NET web development options, and its future is bright.

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