Smlnj.org
Standard ML of New Jersey
Get the free, open-source Standard ML of New Jersey compiler, libraries, and docs for functional programming in Standard ML.
Download the SML/NJ compiler and tools for free
Standard ML of New Jersey (SML/NJ) is the official website for the free, open-source compiler and development tools for Standard ML, a functional programming language. Here, you can download the latest versions of the compiler, access associated libraries, and find detailed documentation to help you get started or deepen your knowledge of Standard ML.
Whether you’re a student, educator, or developer interested in functional programming, SML/NJ provides everything you need to write, compile, and experiment with Standard ML code. The site also offers links to the project’s GitHub repository, release notes, and helpful resources to support your programming journey.
If you're looking to explore or build projects in Standard ML, this site is a central hub for downloads, guides, and community updates—all available for free.
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