sunshinejr/SwiftyUserDefaults

Health v2 · maintenance only

Adoption not part of the score

4888 stars · 362 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

A Swift library providing a modern, statically-typed API over NSUserDefaults (UserDefaults). It lets developers define typed keys in one place and read/write preferences with compile-time safety and expressive syntax.

Use cases

• store user preferences in an iOS app with type safety
• define UserDefaults keys in one place to avoid stringly-typed code
• increment a launch counter stored in UserDefaults
• persist Codable custom types to user defaults
• observe preference changes with KVO
• use property wrappers for app settings

When to choose

• you're building an iOS, macOS, watchOS, or tvOS app in Swift and want a safer UserDefaults API
• you want compile-time checks and typed keys instead of raw string keys
• you want convenient support for Codable, RawRepresentable, and custom types in defaults

When to avoid

• you need a full database or sync engine rather than simple key-value preferences
• your project targets platforms outside Apple's ecosystem
• you prefer the native UserDefaults API or a Swift property-wrapper-only solution like @AppStorage
• you need a library under very active development, as the project appears to be in maintenance mode

Facets

library · maturity maintenance

developer-tools serialization mobile-development developer-tools apple-ecosystem cross-platform userdefaults swift statically-typed preferences key-value-storage property-wrappers ios macos

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