MiniZinc

MiniZinc is a high-level constraint modelling language that allows you to easily express and solve discrete optimisation problems.

Latest release: 2.8.3 (changelog)

MiniZinc is developed at Monash University with support from OPTIMA.

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Try MiniZinc

Try one of the examples, or write your own model.

Why choose MiniZinc?

  • High-level language

    Model constraint satisfaction and optimisation problems using readable, intuitive logical constructs, with full type safety.

  • Solver independent

    Run the same model using a variety of different solver technologies, without being locked into a particular solver.

  • Pre-defined constraints

    MiniZinc features a large library of pre-defined constraints, making modelling complex relationships simple.

  • Fully featured development environment

    Use the MiniZinc IDE to write and run models, visualise search and solutions, profile performance and more.

  • In-depth learning materials

    MiniZinc has comprehensive documentation, including beginner tutorials, advanced courses, a user manual, and library documentation.

  • Integrate MiniZinc into your project

    MiniZinc can be embedded into Python and JavaScript programs, and can even be used entirely from within the browser.

Latest Release

MiniZinc 2.8.3

Released 1 February 2024

  • Remove documentation of strictly_increasing (and decreasing) for bool types, and change definition from a solver redefined global, to a simple library definition with user warning (issue 784).
  • Add version of strictly_increasing (and decreasing) for float, opt float, and set of int types.
  • Automatically detect SCIP 8.1.0 and potential future versions on Windows.
  • Automatically detect Gurobi 11.0 and potential future versions.
  • Allow array literals with all <> members (issue 747).
  • Increase maximum number of threads from default Qt limit (issue 196).

See the full changelog.