ASP.NET Core Blazor

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Updated: 17 January 2025

Notes

  • A .NET frontend (SPA) web framework supporting both server and client side rendering.
  • Uses C#.
  • Client side – uses WebAssembly.
  • Server side – uses ASP.NET Core and communicates with client via SignalR.
  • Blazor apps are based on components. A component in Blazor is an element of UI, such as a page, dialog, or form.
  • Components are .NET C# classes built into .NET assemblies.
  • Blazor vs Razor

Project templates

  • Blazor Server (.NET 7 and below). Seemingly Blazor Server apps are supported in .NET 8 without any code changes.
  • Blazor Web (.NET 8 and above)
  • Blazor WebAssembly

Create a Blazor app

For Blazor Server (.NET 7 and below)

dotnet new blazorserver -o TodoList

Blazor WebAssembly

dotnet new blazorwasm -o TodoList

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