Refined

Refined is a Scala library that enhances types with compile-time constraints using predicate-style refinement types. It allows embedding validation logic into types like Refined[Int, Positive], ensuring invalid values are rejected at compile or runtime, thereby increasing safety and reducing boilerplate in domain modeling.

Features

Rich predicate support (e.g. Positive, NonEmpty, range constraints)
Compile-time verified refinements for constant values
Seamless integration with type-level programming and shapeless
Automatic validation via implicits and macros
Interoperability with Circe, Cats and other functional libraries
Reduces boilerplate in checking invariants during runtime

Project Samples

Project Activity

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License

MIT License

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Additional Project Details

Programming Language

Scala

Related Categories

Scala Libraries

Registered

2025-08-04

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