# reactjs/React.NET

.NET library for JSX compilation and server-side rendering of React components

Repository: https://github.com/reactjs/React.NET
Canonical: https://ross.abutalabs.com/products/reactnet
Homepage: https://reactjs.net/
Language: C#
License: MIT
License Family: permissive
Last push: 2026-03-02T10:29:21+00:00

## Health v2 (maintenance only)
Score: 54/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 70, release rhythm 8, longevity 100
- inputs: {"age_days": 4553, "days_push": 184, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2324, forks 902 (observed 2026-08-28T04:06:37.355315+00:00)

## What it is
ReactJS.NET is a .NET library that integrates Facebook's React and JSX compilation (via Babel) into C# and ASP.NET MVC applications. It provides on-the-fly JSX-to-JavaScript compilation and server-side rendering of React components for faster initial page loads.

## Use cases
- render React components server-side in ASP.NET Core
- compile JSX files on the fly without precompilation
- bundle and minify JSX with Webpack or ASP.NET bundling
- speed up initial page load with server-side pre-rendering
- use React Router and CSS-in-JS with server rendering
- add React to an existing ASP.NET MVC 4/5 application

## When to choose
- you have a .NET/ASP.NET MVC stack and want React with server-side rendering
- you want on-the-fly JSX compilation during development without a Node build step
- you need cross-platform .NET Core support with V8 or ChakraCore JS engines

## When to avoid
- you are building a fully client-side SPA with a separate Node.js toolchain
- your backend is not .NET
- you want the latest React features that depend on modern Node-based tooling

## Facets
- artifact type: library
- maturity: maintenance
- function: ssr, templating, compiler, web-framework
- domain: web-development, frontend, backend
- platform: dotnet, cross-platform, windows
- tags: react, jsx, aspnet, aspnet-core, babel, server-side-rendering, csharp, nuget, linux, macos

## Member repositories
- reactjs/React.NET (main) score 54

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:37.355315+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 2026-08-30T02:38:34.887658+00:00, confidence not recorded.
  - readme: https://github.com/reactjs/React.NET (fetched 2026-08-28T04:06:37.355315+00:00, sha 8e53ab7980a4)
  - homepage: https://reactjs.net/ (fetched 2026-08-29T10:18:51.119503+00:00, sha 28730daaeff6)
  - site_page: https://reactjs.net/docs (fetched 2026-08-29T10:18:51.128520+00:00, sha d4a22bb6d533)
  - site_page: https://reactjs.net/getting-started/tutorial.html (fetched 2026-08-29T10:18:51.130482+00:00, sha 33304f3ce45b)
  - site_page: https://reactjs.net/getting-started/download.html (fetched 2026-08-29T10:18:51.133161+00:00, sha b829e26d69a2)
  - site_page: https://reactjs.net/getting-started/usage.html (fetched 2026-08-29T10:18:51.134640+00:00, sha 50babb2b648c)
  - site_page: https://reactjs.net/getting-started/aspnetcore.html (fetched 2026-08-29T10:18:51.136091+00:00, sha e6f8b7459e43)
- Data as of 2026-08-30T08:39:29.467469+00:00.