frege ☆

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Description:
Non-strict, functional programming language in the spirit of Haskell

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Developer tools

Tags: functional-programming jvm haskell language java

Install: brew install frege

About:
Frege is a Haskell-like functional programming language for the Java Virtual Machine (JVM). It leverages Java's vast ecosystem and tooling while providing strong static typing and type inference. This allows developers to write concise, maintainable code that compiles down to highly efficient Java bytecode.

Key Features:

Haskell-like syntax and semantics
JVM interoperability and native support
Strong static type system with type inference
Compiles to efficient Java bytecode

Use Cases:

Building scalable backend services on the JVM
Functional programming in enterprise Java environments
Leveraging Java libraries with a functional paradigm

Alternatives:

Scala – Scala is more widely adopted but has a more complex language design and syntax.
Kotlin – Kotlin is pragmatic and null-safe but is primarily imperative/OO rather than purely functional.

Version History

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