scalaz/scalaz

Health v2 · maintenance only

Flags: no_releases no_license

Adoption not part of the score

4673 stars · 698 forks observed · 2026-08-28

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

Scalaz is a Scala library for principled functional programming, providing purely functional data structures and foundational type classes such as Functor and Monad with instances for many data types. It is cross-built for Scala 2.12/2.13/3, Scala.js, and Scala Native.

Use cases

• use monads and functors in Scala
• purely functional data structures for Scala
• type class instances for Option and List
• write functional programming code in Scala
• traverse and apply operations functionally
• cross-compile Scala code to JS and native

When to choose

• you want a mature, principled FP library for Scala with type classes like Monad and Functor
• you need purely functional data structures such as NonEmptyList and Tree
• you need cross-building support for Scala.js and Scala Native

When to avoid

• you prefer the Cats ecosystem or ZIO ecosystem for FP in Scala
• you want a lightweight minimal dependency and don't need advanced type classes
• your team is not familiar with functional programming concepts

Facets

library · maturity stable

serialization developer-tools programming-languages developer-tools jvm cross-platform scala functional-programming type-classes monads functors purely-functional-data-structures scala-js scala-native algorithms

Member repositories

For agents

markdown · JSON · MCP: product_card(name="scalaz/scalaz")