SwiftyUserDefaults
A modern, type-safe Swift wrapper for NSUserDefaults with expressive API and compile-time checks.
What is SwiftyUserDefaults?
SwiftyUserDefaults is a Swift library that provides a modern, type-safe wrapper around Apple's NSUserDefaults API. It solves the problem of stringly-typed keys and runtime type errors by allowing developers to define keys with associated types, enabling compile-time checks and a more expressive syntax. It extends support to custom Codable, NSCoding, and RawRepresentable types out of the box.
iOS, macOS, watchOS, and tvOS developers who use UserDefaults for lightweight persistence and want a safer, more maintainable alternative to the standard API. It's particularly valuable for Swift developers prioritizing type safety and modern language features.
Developers choose SwiftyUserDefaults because it eliminates common UserDefaults pitfalls with compile-time type checking, reduces boilerplate code with shortcuts like keyPath syntax, and supports advanced features like observation, custom serialization, and launch arguments—all while maintaining full compatibility with the underlying NSUserDefaults system.
Overview
Modern Swift API for NSUserDefaults
Use Cases
Best For
- Adding type safety to UserDefaults keys in Swift projects
Related Projects
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