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Best MLton Alternatives ranked by AI · updated May 2025

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MLton is an open-source whole-program optimizing compiler for the Standard ML programming language.

Price: Free 🎯 mlton.org
💻 Programming Language 🧱 OOP 💻 Generic Programming Language

Top 3 MLton alternatives

1

SML/NJ

Standard ML of New Jersey (SML/NJ) is a compiler for the Standard ML '97 programming language.

Pros

  • Interactive environment
  • Good support for concurrent programming

Cons

  • Less aggressive optimizations compared to MLton
  • Slower compilation times

Free

Alternatives to SML/NJ →
2

Poly/ML

Poly/ML is a compiler for the Standard ML programming language.

Pros

  • Good error messages
  • Works well with large codebases

Cons

  • Less mature ecosystem compared to MLton
  • Limited documentation

Free

Alternatives to Poly/ML →
3

Moscow ML

Moscow ML is a lightweight implementation of Standard ML.

Pros

  • Easy to get started with
  • Suitable for educational purposes

Cons

  • Limited optimization capabilities
  • Less actively maintained

Free

Alternatives to Moscow ML →

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