Why Do Companies Choose Blazor for Their Projects?

With Blazor, especially when using frameworks such as Syncfusion, development becomes extremely fast and easy to maintain while maintaining a very high level of quality.

With practically a Ctrl+C and Ctrl+V, you can implement an amazing Kanban board and focus only on the project's input and output variables in @Code section instead of spending time managing events, UI logic and components life cycles.

<SfKanban CssClass="kanban-overview" KeyField="Status" DataSource="@CardData" EnableTooltip="true">
    <KanbanColumns>
    </KanbanColumns>
    <KanbanCardSettings ContentField="Summary" HeaderField="Title" SelectionType="@SelectionType.Multiple">
    </KanbanCardSettings>
    <KanbanSwimlaneSettings KeyField="Assignee"></KanbanSwimlaneSettings>
</SfKanban>

@code{
    private List<KanbanDataModel> CardData = new KanbanDataModel().GetCardTasks();
    private List<ColumnModel> ColumnData = new List<ColumnModel>() 
    {
        new ColumnModel(){ HeaderText= "To Do", KeyField= new List<string>() { "Open" }, AllowToggle= true },
        new ColumnModel(){ HeaderText= "In Progress", KeyField= new List<string>() { "In Progress" }, AllowToggle= true },
        new ColumnModel(){ HeaderText= "In Review", KeyField= new List<string>() { "Review" }, AllowToggle= true },
        new ColumnModel(){ HeaderText= "Done", KeyField= new List<string>() { "Close" }, AllowToggle= true }
    };
}

This code results

Documentation and real demo: https://blazor.syncfusion.com/demos/kanban/overview?theme=bootstrap5

One thing worth mentioning is that we're not even talking about Copilot, Claude Code, or Codex yet.

Long before AI agents existed, Blazor was already a productivity hack.

With Blazor, we could build an entire portal in two weeks because we already had entity scaffolding. We would simply create an entity with its properties, and then generate Update, Insert, Delete, and List pages for that entity, already including basic validations, ASP.NET Identity permissions, and a responsive Bootstrap layout.

After that, we only had to implement some business validations and custom logic.

Today, when we combine that reality with AI agents, we're talking about an insane level of productivity, the amount of software that can be produced is becoming absurd it creates a new challenge: having enough mental energy and focus to keep up with the speed at which things can now be built, that's why I made article about Bio hack for brain energy using ketones https://www.gabrielgregori.com/Articles/Details/ketogenic-diet-the-hack-for-programmers-productivity

A Unified Stack

Another major advantage is not having to constantly keep up with multiple technologies.

Instead of mastering a back-end stack and a completely different front-end stack, you can use C# throughout the entire application.

You can also reuse entities, validations, and business logic directly in the front-end, sharing code across different layers of the system.

All of this can be done from a single IDE with seamless integration.

Every 6 months Microsoft launch a new .NET version with a new C# version and many features, imagine having to keep updated with all that at same time keep being updated with a whole different ecosystem like Angular, Javascript, TypeScript etc. 

If you only care for Blazor you can focus more on learning design patterns, concepts rather than keep updated into multiple languages and frameworks.

Less Complexity

Depending on the architecture you choose, you may not even need an API.

With Blazor, it is possible to inject services and repositories directly into the application. If an API is needed, it can always be created as a separate project.

This flexibility can significantly reduce the initial complexity of many applications.

Integration with Visual Studio and Azure

The integration with Visual Studio and Azure is excellent.

With only a few clicks, you can create a Blazor project using Microsoft's templates and publish it to Azure shortly afterward.

For teams already working with .NET, this dramatically reduces setup and deployment time.

The Same .NET Ecosystem

The same packages you already use on the back-end can often be used on the front-end as well.

Everything is managed through NuGet.

This simplifies maintenance and reduces the number of technologies the team must learn and support.

Back-End Developers Building Front-End Applications

One of the things I like most about Blazor is that back-end developers can build modern front-end applications with a very low learning curve.

Using component libraries such as Syncfusion or Telerik, developers can create dashboards, grids, charts, forms, and complex interfaces without becoming experts in JavaScript frameworks.

MAUI Blazor Hybrid

There is a Visual Studio template called MAUI Blazor Hybrid.

With it, you can reuse both your back-end and front-end code and generate applications for:

• Web
• Windows
• macOS
• Android
• iOS

All while using virtually the same codebase, the same IDE, and the same technologies.

From a productivity standpoint, it is difficult to find something comparable within the Microsoft ecosystem.

More Flexible Teams

There is also an organizational benefit.

When a team member takes leave due to vacation, health issues, parental leave, or any other reason, another developer can take over with much less effort.

Because the entire application revolves around the same ecosystem, knowledge transfer becomes significantly easier.

Continuous Platform Evolution

By choosing Blazor, you are investing in a platform that is actively supported by Microsoft.

New features are constantly being introduced.

A good example was the introduction of Render Modes in .NET 8.

With Render Modes, you can decide whether a component should execute on the server or on the client.

This makes it possible to build much smarter architectures that balance productivity, user experience, and resource consumption.

A Concise List of Blazor Advantages

• Higher development productivity
• Fast development with Syncfusion, Telerik, and similar component libraries
• Complex interfaces with minimal code
• Unified stack using only C#
• Shared entities between front-end and back-end
• Shared validation and business logic
• Low learning curve for .NET developers
• Code sharing across application layers
• Direct dependency injection in the front-end
• Native Visual Studio integration
• Fast project creation through templates
• Simplified Azure deployment
• Fully integrated .NET ecosystem
• Same NuGet packages across front-end and back-end
• Less code duplication
• Full-stack development using a single language
• Easier debugging across the entire application
• Reuse of existing C# knowledge
• Lower training costs
• High productivity for enterprise systems
• More focus on business logic rather than front-end infrastructure
• Scaffold entities and create CRUD with basic validations and Identity permissions

So Why Do Some Companies Fail with Blazor?

I have personally seen companies abandon Blazor.

I also have friends working in large corporations, including the automotive industry, that moved away from Blazor primarily because of performance concerns.

Last year, when my assignment with a client ended, I participated in both internal and external interviews.

One thing I found interesting was that several companies were interested in me for one specific reason: understanding how to make Blazor projects successful in production.

The Real Problem

Without marketing and without buzzwords, the problem is usually very simple:

The websocket from SignalR scalling for every single user.

I have seen software architects, senior engineers, and professionals with decades of experience completely overlook this detail.

A traditional JavaScript application mostly communicates through HTTP requests.

Blazor Server, on the other hand, maintains a persistent SignalR connection between the client and the server.

Each connected user represents an active connection.

The Cost of Scaling

While a traditional application mostly handles GET, POST, PUT, and DELETE requests for example when you enter a page in a traditional app it sends an GET Request then Server respond with a cached query while in a Blazor Server it maintains a continuous communication channel with users.

If you have 1,000 connected users, you roughly have 1,000 active WebSocket connections sending and receiving events and updating DOM.

There is a lot of engineering behind this process.

I do not need to understand every internal detail to understand the final result: CPU, memory, and server resource consumption.

This is where many projects begin to experience performance issues.

The Most Common Mistake

The developer sees performance problems and concludes:

"Blazor doesn't scale."

Then they abandon the technology and move to a JavaScript framework.

Another error it's putting javascript developers to work with Blazor without training, it's completely different the good practices.

How to Solve It

Today there are several ways to take advantage of Blazor without relying exclusively on Blazor Server.

You can use:

• Blazor WebAssembly consuming APIs
• Render Modes
• Hybrid architectures
• Client-side components
• Server-side components

Internal dashboards with a limited number of users may work perfectly with Blazor Server.

Public-facing features with large traffic volumes may be better suited for WebAssembly with API or Razor Pages (Blazor uses .razor components).

The Most Underrated Framework in the .NET Ecosystem

Now comes what I believe is the most interesting insight.

ASP.NET Razor Pages

Razor Pages is probably one of the most underrated frameworks in the .NET ecosystem.

It offers many of the same characteristics that attract developers to Blazor.

You still get:

• C#
• .NET
• Razor components
• Shared code
• Libraries such as Syncfusion

But with significantly lower computational overhead for public, high-traffic applications.

This is because it does not rely on persistent SignalR connections in the same way that Blazor Server does.

How It Works

With Razor Pages, you have a native HTTP-based architecture.

Each page has its own view and code-behind responsible for handling requests.

It is an extremely efficient solution for public-facing pages that receive a large volume of traffic.

How This Website Was Built

The website you are currently reading uses a hybrid architecture.

Public pages are built with Razor Pages.

The dashboard uses Blazor Render Modes.

Charts and heavier client-side features are executed in the browser when appropriate.

Administrative features, such as article management, use server-side rendering to provide a smoother SPA-like experience.

And if necessary, I can still integrate JavaScript libraries and synchronize them with C# with relatively little effort.