unique_device_identifier 2.0.4

A Flutter plugin that provides a unique device identifier on all platforms including Android, iOS, Windows, macOS, Linux, Web.

Changelog

All notable changes to this project will be documented in this file.

2.0.4

• Fixed a bug on the Web platform where all devices were generating the same UUID (00000000-0000-4000-8000-000000000000)
• Implemented Web-specific UUID generation: attempts to generate a UUID using a browser fingerprint; if that fails, falls back to a randomly generated UUID using Dart
• The randomly generated UUID is stored in window.localStorage and reused across page reloads and browser sessions

2.0.3

• Fixed incorrect usage example in documentation.

2.0.2

• Fixed version example in README.md to match the latest release.

2.0.1

• Added detailed doc comments to getUniqueIdentifier() to describe platform-specific behavior.
• No code changes; this is a documentation-only update.

2.0.0

• Breaking Change: getUniqueIdentifier() has been converted to a static method.
  • You can now call it directly without creating an instance:

    final deviceId = await UniqueDeviceIdentifier.getUniqueIdentifier();
    

  • This change simplifies usage but breaks compatibility with the previous instance-based approach:

    // ❌ This will no longer work:
    final deviceId = await UniqueDeviceIdentifier().getUniqueIdentifier();
    

1.0.0

• Initial release of the unique_device_identifier Flutter plugin.
• Supports the following platforms:
  • ✅ Android (Settings.Secure.ANDROID_ID)
  • ✅ iOS (UIDevice.identifierForVendor)
  • ✅ Windows (MachineGuid from registry)
  • ✅ macOS (IOPlatformUUID via IOKit with macOS 12+ fallback)
  • ✅ Linux (/etc/machine-id)
  • ✅ Web (fingerprint-based hash with fallback to random UUID, stored in localStorage)
• No external dependencies required.
• Provides a consistent getUniqueIdentifier() interface for all platforms using MethodChannel and Dart interop.