# sindresorhus/Defaults

💾 Swifty and modern UserDefaults

Repository: https://github.com/sindresorhus/Defaults
Canonical: https://ross.abutalabs.com/products/defaults
Homepage: https://swiftpackageindex.com/sindresorhus/Defaults/documentation/defaults
Language: Swift
License: MIT
License Family: permissive
Topics: userdefaults, nsuserdefaults, macos, ios, swift-package-manager, swift-package, swifty, swiftui-components, storage
Last push: 2026-06-23T21:26:22+00:00

## Health v2 (maintenance only)
Score: 87/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 89, release rhythm 78, longevity 100
- inputs: {"age_days": 3066, "days_push": 71, "days_rel": 71, "gap_med": 41, "n_releases_24m": 10}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2494, forks 164 (observed 2026-08-28T04:06:56.611757+00:00)

## What it is
A Swift library providing a strongly-typed, modern facade over UserDefaults for persistent key-value storage in Apple platform apps. It supports Codable values, SwiftUI property wrappers, change observation, and iCloud synchronization.

## Use cases
- store app settings persistently across launches
- replace @AppStorage with strongly-typed defaults
- observe changes to user preference values
- store Codable types in UserDefaults
- sync app preferences across devices via iCloud
- use UserDefaults outside of SwiftUI

## When to choose
- you're building a macOS, iOS, tvOS, watchOS, or visionOS app in Swift
- you want type-safe, centralized defaults with default values defined in one place
- you need SwiftUI bindings plus observation outside SwiftUI
- you want to store Codable or custom types in user defaults

## When to avoid
- you need a database or large structured storage rather than key-value preferences
- you target platforms outside Apple's ecosystem
- you're not using Swift or Swift Package Manager
- you need cross-platform persistence like shared preferences on Android

## Facets
- artifact type: library
- maturity: stable
- function: state-management, serialization, developer-tools
- domain: mobile-development, desktop-applications, developer-tools
- platform: cross-platform
- tags: userdefaults, swift-package-manager, swiftui, key-value-storage, codable, icloud-sync, apple-platforms, macos, ios, swift

## Member repositories
- sindresorhus/Defaults (main) score 87

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:56.611757+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 2026-08-30T02:27:17.802279+00:00, confidence not recorded.
  - readme: https://github.com/sindresorhus/Defaults (fetched 2026-08-28T04:06:56.611757+00:00, sha 4d9e9ad72f2e)
- Data as of 2026-08-30T08:39:29.467469+00:00.