.NET 10 Ready

Build Interactive Web Apps with C#

Blazor lets you build beautiful, interactive web UIs using C# instead of JavaScript. Full-stack .NET development with component-based architecture that rivals React.

Start Building See Demo

10M+ Downloads

100% C# Code

0 JS Required

Counter.razor

@page "/counter"

<h1>Counter</h1>

<p>Current count: @currentCount</p>

<button class="btn btn-primary"
        @onclick="IncrementCount">
    Click me
</button>

@code {
    private int currentCount = 0;

    private void IncrementCount()
    {
        currentCount++;
    }
}

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Features

Everything You Need to Build Modern Web Apps

Blazor combines the productivity of C# with the power of modern web development

Component-Based Architecture

Build encapsulated components that manage their own state, then compose them to make complex UIs. Just like React, but with C#.

@inherits ComponentBase

WebAssembly Power

Run C# directly in the browser using WebAssembly. Near-native performance without plugins.

Type Safety

Catch errors at compile time with C#'s strong typing. No more runtime surprises.

Hot Reload

See changes instantly without losing app state. Blazing fast development cycle.

Flexible Rendering Modes

Choose the right rendering strategy for each component: Server, WebAssembly, or Auto. Mix and match for optimal performance.

Server WASM Auto SSR

Full .NET Ecosystem

Access NuGet packages, Entity Framework, and the entire .NET library ecosystem.

Shared Logic

Share code between frontend and backend. One language, one codebase.

Why Blazor

Blazor vs React + Shadcn

See how Blazor stacks up against the popular JavaScript ecosystem

Feature

B Blazor

React + Shadcn

Language

C# Strongly typed, mature

TypeScript/JavaScript Optional typing

Full-Stack Code Sharing

Native Same language everywhere

With Node.js Requires separate backend

Component Library

MudBlazor, Radzen, Fluent UI Rich ecosystem

Shadcn/ui, Radix Copy-paste components

Build Tooling

Built-in dotnet CLI, no config

Vite, Webpack Config complexity

State Management

Cascading Parameters, Fluxor Simple patterns

Redux, Zustand, Jotai Many options

Form Handling

EditForm + DataAnnotations Built-in validation

React Hook Form + Zod Third-party required

Rendering Options

SSR, WASM, Server, Auto All modes in one project

CSR, SSR (Next.js) Framework dependent

Enterprise Support

Microsoft Long-term support

Meta (Facebook) Open source

Ready to experience the productivity of C# in the browser?

Try Blazor Today

Interactive Demo

See Blazor in Action

Experience the power of C# components right here

Counter Component

Classic Example

In Blazor, this would be pure C# with no JavaScript!

Two-Way Binding

@bind Directive

Value: ---

Blazor: @bind="myValue" - that's it!

Component Composition

Nested Components

<App>

<@Body />

Compose complex UIs from simple, reusable components

Ready to Build with Blazor?

Join millions of developers building modern web applications with C#

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.NET 10 WebAssembly Hot Reload