# Caliburn-Micro/Caliburn.Micro

A small, yet powerful framework, designed for building applications across all XAML platforms. Its strong support for MV* patterns will enable you to build your solution quickly, without the need to sacrifice code quality or testability.

Repository: https://github.com/Caliburn-Micro/Caliburn.Micro
Canonical: https://ross.abutalabs.com/products/caliburnmicro
Homepage: http://caliburnmicro.com/
Language: C#
License: MIT
License Family: permissive
Topics: c-sharp, mvvm, xamarin-forms, wpf, windows-10, uwp, hacktoberfest, avalonia-ui, winui3, vb-net, dotnet-maui, windows-desktop, winui3-in-desktop
Last push: 2026-07-17T15:11:04+00:00

## Health v2 (maintenance only)
Score: 68/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 93, release rhythm 19, longevity 100
- inputs: {"age_days": 4597, "days_push": 47, "days_rel": 324, "gap_med": 294, "n_releases_24m": 2}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2863, forks 769 (observed 2026-08-28T04:07:26.406538+00:00)

## What it is
Caliburn.Micro is a small, powerful MVVM framework for building applications across all XAML platforms including WPF, UWP, WinUI3, Avalonia UI, .NET MAUI, and Xamarin.Forms. It provides convention-based view-model binding, actions with guard methods, screen conductors, and an event aggregator to enable rapid, testable UI development.

## Use cases
- build a WPF desktop app with MVVM
- bind view models to XAML views by convention
- share UI logic across WPF, MAUI, and Avalonia apps
- decouple view models with an event aggregator
- implement screen and conductor composition patterns
- make XAML app logic testable without code-behind

## When to choose
- you are building a .NET XAML application (WPF, UWP, WinUI3, MAUI, Avalonia, or Xamarin.Forms) and want an opinionated, lightweight MVVM framework
- you want convention-based binding to reduce boilerplate wiring between views and view models
- you need built-in composition patterns (screens, conductors) and event aggregation
- testability of presentation logic is a priority

## When to avoid
- you prefer explicit data-binding with commands and no magic conventions
- you are building a web or non-XAML UI
- you want a framework with a large ecosystem and extensive third-party tooling
- you need a minimal, unopinionated MVVM library without conventions

## Facets
- artifact type: framework
- maturity: active
- function: frontend-framework, state-management, ui-components, middleware
- domain: web-development, frontend, desktop-applications, mobile-development, cross-platform
- platform: dotnet, windows, cross-platform
- tags: mvvm, xaml, wpf, uwp, winui3, avalonia, maui, xamarin-forms, event-aggregator, conventions, c-sharp, desktop, mobile

## Member repositories
- Caliburn-Micro/Caliburn.Micro (main) score 68

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:26.406538+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 2026-08-30T07:36:15.331008+00:00, confidence not recorded.
  - readme: https://github.com/Caliburn-Micro/Caliburn.Micro (fetched 2026-08-28T04:07:26.406538+00:00, sha 1577c0f7cff8)
  - homepage: http://caliburnmicro.com/ (fetched 2026-08-29T09:51:54.779536+00:00, sha 2bb97548e813)
  - site_page: https://caliburnmicro.com/documentation (fetched 2026-08-29T09:51:54.789106+00:00, sha 9bb6822e0afe)
- Data as of 2026-08-30T08:39:29.467469+00:00.