Who is using Blazor at scale, and what kind of project can you create?

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Blazor is no longer a niche .NET experiment. It is quietly becoming a serious choice for enterprise web apps, internal tools, and even SaaS products that need rich, interactive interfaces built with C# instead of JavaScript.

Blazor is gaining real traction because it lets teams reuse .NET skills from backend to frontend, cut context switching, and keep one shared model across the whole app.

Industry usage trackers report that live websites built with Blazor have grown from roughly the low‑tens of thousands in late 2023 to tens of thousands more by early 2025, which is strong growth for a young framework.

Developer surveys also show Blazor appearing among actively used web frameworks, with a modest but meaningful share of respondents using it in production, especially in .NET‑heavy teams.

Why does this matter now?

Because many companies sitting on large .NET estates are tired of juggling separate JavaScript stacks just to build modern web UIs.

They want something that fits with their existing code, tooling, and hiring pool. That is where Blazor comes in, whether you build in‑house with your own team or work with a specialist Blazor Development Company that knows how to design for scale and long‑term maintainability.

Key takeaways

Blazor is used at scale by enterprises, SaaS vendors, and product teams that already rely on .NET and want a unified stack for backend and frontend.
You can build large CRM and ERP systems, admin portals, multi‑tenant SaaS dashboards, B2B portals, e‑commerce front‑ends, and line‑of‑business apps with Blazor.
Real‑world examples include energy portals, virtual auction platforms, and other production apps built with Blazor and .NET, not just demos or hobby projects.
The point is: Blazor is not only for small internal tools anymore; it is ready for serious, long‑lived projects when used with good architecture and DevOps practices.
If you already invest in Azure, .NET, and C#, Blazor can reduce complexity, reuse skills, and create a more consistent development experience across your stack.

What Blazor is in simple terms

Blazor is a Microsoft web framework that lets you build interactive web UIs using C# and Razor components instead of JavaScript for most of your client logic. It can run either on the server (Blazor Server) or in the browser through WebAssembly (Blazor WebAssembly), while still talking to your backend APIs and databases through normal .NET code.

The point is that you keep your logic, models, and validation in one language across frontend and backend. You can still call JavaScript if you need to, but for many business apps you do not have to build and maintain a separate JavaScript SPA stack.

Who is using Blazor at scale?

You might wonder, “Is anyone serious actually using this in production?”
Yes. And not only Microsoft itself.

Several categories of organizations are using Blazor in real projects:

Small and mid‑size software vendors building SaaS dashboards, portals, and admin panels where .NET is already in use for backend APIs.
Enterprises that modernize internal systems like CRM, ERP, inventory, and self‑service portals, especially where they standardize on Azure and .NET.
Specialized solution providers that ship vertical products for sectors like energy, fairs and events, logistics, healthcare, and professional services.

Public customer stories show examples where Blazor plays a core role:

Energy and utilities platforms use Blazor portals on top of cloud services to give customers modern billing and account experiences.
Fair management and auction software providers use Blazor with .NET to deliver virtual live auction and event experiences.

These are not toy apps.
They handle real transactions, real users, and real money.

Why enterprises and SaaS teams pick Blazor

So why are companies willing to bet on Blazor rather than staying in the React, Angular, or Vue comfort zone?

A few practical reasons keep coming up:

One language across the stack: Teams that already use C# for services and business logic can reuse the same language on the UI side.
Strong integration with .NET and Azure: Identity, logging, configuration, cloud services, and DevOps pipelines all fit the same ecosystem.
Component model that fits modern SPA patterns: You still work with components, routing, and state, just in C# instead of JavaScript.
Lower context switching for developers: A full‑stack .NET developer can work end‑to‑end without jumping between two separate tech stacks.

However, the problem is that some teams underestimate the architecture side.
Blazor itself does not magically fix UX, performance, or bad data modeling.
You still need good domain design, caching, and testing practices the same way you would with React or Angular.

Types of projects you can build with Blazor

If it is a business web app with rich UI and strong ties to .NET, Blazor can probably handle it.
Here are the main project categories.

Enterprise line‑of‑business apps

These are the “run‑the‑business” apps that staff use daily.

Typical examples include:

CRM systems that integrate with existing .NET services, SQL Server, and identity providers like Microsoft Entra ID (Azure AD).
ERP modules for finance, purchasing, inventory, or operations, where you want reusable grids, forms, and dashboards.
Field service or operations portals that need offline support, role‑based access, and lots of business rules.

Blazor’s component model and strong typing help keep large forms and workflows maintainable over time.
You can define validation, mapping, and business rules in shared libraries that both the frontend and backend use.

SaaS dashboards and multi‑tenant portals

If you build SaaS products or B2B portals, Blazor fits nicely with a typical .NET microservices or modular monolith architecture.

Common use cases:

Analytics dashboards with charts, filters, and drill‑downs.
Multi‑tenant account portals where each customer sees their reports, billing info, and settings.
Operational dashboards showing queues, alerts, and live status of systems or orders.

Many of these apps benefit from Blazor Server for real‑time UI updates and secure server‑side execution, or Blazor WebAssembly when you want more work in the browser and better offline behavior.

Internal admin panels and tools

Not every project is a big product.
Sometimes you just need to give your internal teams better tools.

Blazor is a good fit for:

Admin portals for managing customers, catalog data, pricing, or configurations.
Support tools for helpdesk teams to track tickets, troubleshoot, or impersonate customer accounts with proper auditing.
Compliance and reporting tools that sit on top of existing databases and services.

Because Blazor works well with existing .NET code, you can often reuse domain services and DTOs, which speeds up internal tool development and keeps logic consistent.

B2B and customer self‑service portals

Customer‑facing portals are another strong area for Blazor, especially in industries that already standardize on Microsoft.

Think about:

Utility and energy customer portals where customers manage contracts, consumption, and billing online.
Partner and reseller portals for ordering, onboarding, training, and reporting.
Healthcare or finance portals where you want tight integration with secure .NET services and strict access control.

Why it matters: Portals usually have complex rules and data flows, which line up well with strongly typed C# models and shared validation logic.

E‑commerce front‑ends and management consoles

Blazor is also used for commerce and operations experiences such as:

E‑commerce dashboards for order management, product management, and merchandising.
Custom B2B ordering portals with contract pricing, complex catalogs, and approval workflows.
Management consoles for fulfillment, logistics, and inventory that pull from existing .NET APIs.

E‑commerce often needs many small UI components: filters, carts, inline editors, and step‑by‑step flows.
Blazor’s reusable components help you create these once and reuse them across multiple views or even multiple projects.

High‑interaction apps with WebAssembly

Blazor WebAssembly brings .NET into the browser using WebAssembly, which opens doors for more interactive experiences.

You can create:

Real‑time collaboration tools and internal communication apps.
Configurators and calculators that run most logic in the browser to keep latency low.
Progressive web apps (PWAs) that work offline and can be “installed” on devices while still sharing .NET code with your backend.

For these scenarios, performance tuning and payload size matter.
You need to be disciplined about trimming assemblies, lazy loading, and optimizing downloads.

How Blazor scales in real projects

A natural concern is, “Will this scale when we have thousands of users and years of features?”
The honest answer: it can, if you design it properly.

Blazor brings some specific scaling considerations:

Blazor Server keeps a persistent real‑time connection per user, so you must plan for server capacity, connection limits, and horizontal scaling.
Blazor WebAssembly pushes more work to the browser, so you focus on payload size, caching, and efficient API design.

In both models, you still rely on underlying .NET and ASP.NET Core capabilities for:

Load balancing and horizontal scaling in your chosen cloud.
Caching, logging, metrics, and tracing through the .NET ecosystem.
Secure authentication and authorization, often via OpenID Connect or enterprise identity platforms.

The point is that Blazor itself is not usually the bottleneck; your architecture, hosting setup, and database design are.

When Blazor makes business sense

Blazor is not the right answer for every front‑end.
However, there are clear situations where it makes strong business sense.

Blazor makes sense when:

Your organization already invests heavily in .NET, Azure, and C#.
Your team is stronger in C# than in advanced JavaScript SPA frameworks.
You want to reduce the cost and complexity of maintaining two different stacks.
Your app is primarily a business application with forms, workflows, and data grids, rather than a consumer social app that lives and dies on highly custom visual effects.

On the other hand, if your company already has a mature React or Angular setup, a strong JavaScript team, and a working design system, switching just for the sake of it may not bring enough value.

Why teams hesitate about Blazor

If Blazor is so promising, why is not everyone using it yet?

Some common concerns:

Smaller ecosystem compared to React or Angular, so fewer off‑the‑shelf UI libraries and tutorials.
Worry about long‑term direction, since Blazor is still evolving inside the wider .NET roadmap.
Talent availability, because many front‑end‑focused developers still prioritize mainstream JavaScript frameworks.

However, the problem is that many of these concerns come from older impressions.
The ecosystem has grown, real companies have shipped real products, and Microsoft has made Blazor a central part of its web UI strategy.

What kind of developer experience to expect

From a developer’s point of view, working in Blazor feels like building a SPA with components, routing, and shared state, just using C# and Razor instead of JSX or Angular templates.

You can expect:

Razor component files where markup and C# logic live together, similar to existing Razor pages.
Strong tooling in major .NET IDEs, including debugging, IntelliSense, and refactoring.
The ability to share DTOs, validation attributes, and even some business rules between client and server projects.

Why it helps: Your team can use familiar .NET skills and tools instead of learning a completely different ecosystem for the frontend.

Why Blazor works well for MVPs and new products

Blazor is also popular for MVPs and early versions of new web products.

Why?

You can move faster by reusing .NET libraries and patterns you already know.
You avoid building and wiring up a separate front‑end stack from scratch.
The same codebase can be extended later with .NET MAUI or other .NET apps, which can share components and logic.

For non‑technical founders or business leaders, the big plus is speed with reasonable maintainability.
You get a modern SPA‑like experience for users without an overly complex tech stack behind it.

How to decide if Blazor is right for your project

So how do you decide whether to use Blazor for your next project?

Ask a few simple questions:

Do we already run most of our backend on .NET and host on a Microsoft‑friendly stack?
Is our team more comfortable with C# than with modern JavaScript frameworks?
Is our app mostly about business workflows, data entry, and dashboards, not heavy consumer UX or a design‑driven marketing site?
Are we looking for a long‑term stack that we can maintain with a relatively small but skilled team?

If you answer “yes” to most of these, Blazor is worth serious consideration.
If your answers are mixed, you might still use Blazor for specific modules like admin portals or internal tools, while keeping public marketing sites on other frameworks or a CMS.

How to start using Blazor in a low‑risk way

You do not have to rewrite everything to try Blazor.
A safer way is to introduce it step by step.

A few practical entry points:

Build a small internal admin panel in Blazor that talks to your existing .NET APIs.
Create a proof‑of‑concept for a dashboard or portal module with a few critical user journeys and test it with real users.
Use Blazor for a new module in an existing system, such as reporting, configuration, or a new self‑service experience.

This way, you test developer experience, performance, and maintenance overhead long before you commit an entire product line to Blazor.

Why and how: using Blazor for your next project

Why use Blazor for your next project

To reuse your existing .NET investment instead of juggling two very different stacks.
To give full‑stack .NET developers more control over the entire app, from database to UI.
To build serious business apps that require long‑term maintainability, strong typing, and tight integration with your backend logic.

The point is that Blazor can reduce mental overhead and operational complexity, which matters a lot for teams that support systems over many years.

How to use Blazor effectively

Start with clear boundaries: Decide which modules or features will be Blazor‑based and which will stay on your existing stack.
Choose the right hosting model: Blazor Server for strong server control and real‑time features, Blazor WebAssembly when you want more work done in the browser or offline.
Reuse shared libraries: Put your models, validation, and shared logic into common .NET projects so both client and server use the same definitions.
Plan for scaling: Monitor connection counts, latency, and resource use early in your testing, not just before launch.

These steps keep your first Blazor projects focused and measurable, instead of turning them into risky rewrites.

Final thoughts for decision‑makers

If you manage digital products, IT strategy, or engineering teams, Blazor is worth being on your shortlist whenever you:

Run a .NET‑heavy environment.
Need new internal tools, portals, or SaaS modules.
Want a single, coherent stack where your developers can move across layers without re‑training on another front‑end ecosystem.

Blazor is maturing into a practical option for building at scale, not just an interesting side project.
If you treat it like any other serious platform—good architecture, testing, deployment practices, and UX design—you can use it for everything from internal dashboards to multi‑tenant SaaS products that run for years.