# microsoft/fluentui-blazor

Microsoft Fluent UI Blazor components library. For use with ASP.NET Core Blazor applications

Repository: https://github.com/microsoft/fluentui-blazor
Canonical: https://ross.abutalabs.com/products/fluentui-blazor
Homepage: https://www.fluentui-blazor.net
Language: C#
License: MIT
License Family: permissive
Topics: components, design-systems, web-components, web-standards, component-library, front-end-framework, component-architecture, development-tools, adaptive-ui, fluent, fluentui, blazor, csharp, csharp-library, webassembly
Last push: 2026-08-26T11:43:50+00:00

## Health v2 (maintenance only)
Score: 98/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 95, longevity 100
- inputs: {"age_days": 1997, "days_push": 7, "days_rel": 35, "gap_med": 23.0, "n_releases_24m": 25}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 4800, forks 483 (observed 2026-08-28T04:09:00.189590+00:00)

## What it is
A Microsoft-maintained library of Razor components implementing the Fluent Design System for ASP.NET Core Blazor applications. Many components wrap the official Fluent UI Web Components, giving Blazor apps the look and feel of modern Microsoft applications.

## Use cases
- build blazor apps with fluent design system styling
- add microsoft-style ui components to asp.net core web apps
- use fluent ui web components from c# razor code
- create blazor webassembly apps with modern ui
- get started quickly with dotnet project templates for fluent ui blazor

## When to choose
- you are building .NET 8 or 9 Blazor applications and want a Fluent/Microsoft look
- you want a maintained component library from Microsoft with an MIT license
- you prefer C#-only Razor components over writing JavaScript interop yourself

## When to avoid
- you are on unsupported .NET 6 or 7 (use the older Microsoft.Fast.Components.FluentUI v3 packages instead)
- you need a design system other than Fluent UI, such as Material or Bootstrap
- you are not using Blazor or the .NET ecosystem

## Facets
- artifact type: library
- maturity: active
- function: ui-components, frontend-framework, templating, theme
- domain: web-development, frontend, cross-platform
- platform: dotnet, wasm, cross-platform
- tags: blazor, fluent-ui, razor-components, design-system, microsoft, aspnet-core, nuget, web-server

## Member repositories
- microsoft/fluentui-blazor (main) score 98

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:00.189590+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:18:38.009585+00:00, confidence not recorded.
  - readme: https://github.com/microsoft/fluentui-blazor (fetched 2026-08-28T04:09:00.189590+00:00, sha 8f6f5e320ca1)
  - homepage: https://www.fluentui-blazor.net (fetched 2026-08-29T09:01:39.948065+00:00, sha 3afa7a18cb0e)
- Data as of 2026-08-30T08:39:29.467469+00:00.