# mono/xwt

A cross-platform UI toolkit for creating desktop applications with .NET and Mono

Repository: https://github.com/mono/xwt
Canonical: https://ross.abutalabs.com/products/xwt
Language: C#
License: MIT
License Family: permissive
Archived: true
Last push: 2023-03-14T14:29:26+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 5425, "days_push": 1268, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1349, forks 245 (observed 2026-08-28T04:04:27.941128+00:00)

## What it is
Xwt is a cross-platform UI toolkit for .NET and Mono that exposes a single unified API mapped to native widgets on each platform (WPF/Gtk on Windows, Cocoa/Gtk on macOS, Gtk on Linux). It can power entire applications or be embedded into existing native hosts for dialogs and cross-platform surfaces.

## Use cases
- build a desktop app that runs on windows mac and linux from one c# codebase
- embed cross-platform dialogs into an existing wpf application
- add ui panels to a gtk# application like monodevelop
- write native-looking desktop ui without learning each platform's toolkit
- create a cross-platform .net gui using native controls instead of custom rendering

## When to choose
- you want one .NET codebase with native widgets on Windows, macOS, and Linux
- you need to embed cross-platform UI inside an existing WPF, Gtk#, or Cocoa host application
- you are maintaining a Mono/.NET desktop project already using Xwt

## When to avoid
- you are starting a brand-new cross-platform .NET app today - consider Avalonia or MAUI, as Xwt development is largely dormant
- you need mobile or web targets
- you need a large ecosystem of modern controls and theming

## Facets
- artifact type: library
- maturity: maintenance
- function: ui-components, desktop-framework
- domain: cross-platform, desktop-applications, web-development
- platform: windows, cross-platform, dotnet
- tags: ui-toolkit, native-controls, gtk, wpf, cocoa, mono, net, macos, linux

## Member repositories
- mono/xwt (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:27.941128+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 2026-08-30T04:42:22.277044+00:00, confidence not recorded.
  - readme: https://github.com/mono/xwt (fetched 2026-08-28T04:04:27.941128+00:00, sha 5f2aba373ea0)
- Data as of 2026-08-30T08:39:29.467469+00:00.