# NeutroniumCore/Neutronium

🚀 Build .NET desktop applications using HTML, CSS and javascript.

Repository: https://github.com/NeutroniumCore/Neutronium
Canonical: https://ross.abutalabs.com/products/neutronium
Homepage: https://neutroniumcore.github.io/Neutronium/
Language: C#
License: MIT
License Family: permissive
Topics: chromium, mvvm, c-sharp, vue, wpf, html, framework, browser, reactive-programming
Last push: 2023-01-03T20:48:42+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4070, "days_push": 1338, "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 1351, forks 120 (observed 2026-08-28T04:04:28.338035+00:00)

## What it is
Neutronium is a .NET library for building desktop applications with HTML, CSS, and JavaScript UIs using the MVVM pattern, powered by Chromium via ChromiumFX. It provides two-way bindings between C# ViewModels and JavaScript MVVM frameworks like Vue.js, Knockout.js, and mobx.

## Use cases
- build .NET desktop apps with HTML CSS and javascript
- migrate an existing WPF MVVM application to a web-based UI
- embed an HTML/Chromium control inside a WPF application
- reuse WPF ViewModels with a JavaScript view engine
- build desktop UIs with Vue.js or Knockout.js

## When to choose
- you are a .NET team that wants web-technology UIs while keeping C# MVVM architecture
- you want to reuse existing WPF ViewModels with an HTML5 front end
- you need two-way reactive binding between C# objects and JavaScript frameworks

## When to avoid
- you need a cross-platform desktop app on macOS or Linux, since it targets WPF/Windows
- you want a fully web-based or Electron-style stack without .NET
- you need a project with frequent updates and a large active community

## Facets
- artifact type: framework
- maturity: maintenance
- function: desktop-framework, ui-components, state-management, templating
- domain: desktop-applications, web-development, frontend, cross-platform
- platform: windows, dotnet, c
- tags: mvvm, chromium-embedded, vuejs, wpf, html5-ui, csharp, desktop

## Member repositories
- NeutroniumCore/Neutronium (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:28.338035+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 2026-08-30T04:42:12.069517+00:00, confidence not recorded.
  - readme: https://github.com/NeutroniumCore/Neutronium (fetched 2026-08-28T04:04:28.338035+00:00, sha 653fe9000a3f)
  - homepage: https://neutroniumcore.github.io/Neutronium/ (fetched 2026-08-29T12:00:48.361056+00:00, sha 7e692021b249)
- Data as of 2026-08-30T08:39:29.467469+00:00.