Skip to content
CAI
Produce a survey ↗Verify a survey

utmapp/UTM

UTM is a cross-platform virtualization application for iOS, macOS, and visionOS that manages and runs virtual machines using QEMU and Apple Virtualization backends. The system provides comprehensive configuration, display, and input handling for virtual machines, including remote management and CLI automation. It features extensive internationalization, supporting over a dozen languages with full UI and error message localization. The architecture has been modernized to use SwiftUI, modular components, and robust build scripts for multi-platform deployment.

48.5

Weak · 1 August 2026

49k

lines of production code

Swift

primary language

1

bus factor · 114 authors in all

3

measurements over time

CAI band scale
CAI trend line

How it got here

2019–2020 · SwiftUI migration and platform modernization

This period was defined by a comprehensive architectural overhaul, migrating the codebase from Objective-C and Storyboards to a modern Swift and SwiftUI foundation. The work focused on rebuilding the configuration backend, implementing new platform-specific features for iOS and macOS, and establishing robust build and packaging scripts for cross-platform support.

24 changes

2021–2022 · internationalization and automation

This period focused on expanding global accessibility by adding comprehensive localization for multiple new languages, including French, German, Spanish, Polish, Finnish, and others, alongside refactoring the macOS launcher and configuration systems. The team also introduced new automation capabilities, specifically a command-line interface (utmctl) and an AppleScripting interface, to enhance programmatic control over virtual machines.

44 changes

2023–2025 · internationalization and remote management

This period focused on expanding global accessibility by adding full localization support for multiple new languages, including Arabic, Italian, Polish, Korean, and various Chinese variants. Simultaneously, the codebase introduced significant backend capabilities for remote VM management and Apple's App Intents for Siri and Shortcuts integration.

23 changes

CAI lens gauges

Survey your own repository

utmapp/UTM was measured the same way every project in this corpus was: the same rubric, at a pinned commit, with the result published in full. Point the surveyor at a repository you know and see whether you agree with it.

Survey a repository

About this page

  • The description of this project is derived from its own commit history, not from its README.
  • The score is its highest published measurement, taken on 1 August 2026 at a pinned commit. It is not a live figure and does not change until the project is measured again.
  • Measured at commit fb61bfe86a — the exact code this score is about.
  • Scored under rubric rubric-2026.08.18. Score the same commit under that rubric and you get the same number.
CAI link cards