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COIN-OR Foundation

Computational Infrastructure for Operations Research.

Computational Infrastructure for Operations Research

The COIN-OR organization on Github is an open source repository managed by the COIN-OR Foundation, Inc., a non-profit educational foundation. We are building an open-source community for operations research software in order to speed development and deployment of models, algorithms, and cutting-edge computational research, as well as provide a forum for peer review of software similar to that provided by archival journals for theoretical research.

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  1. COIN-OR-OptimizationSuite COIN-OR-OptimizationSuite Public

    A harness for building the bundled suite of interoperable optimization tools available in the COIN-OR repository.

    Shell 135 42

  2. pulp pulp Public

    A python Linear Programming API

    Python 2.4k 424

  3. Ipopt Ipopt Public

    COIN-OR Interior Point Optimizer IPOPT

    C++ 1.7k 304

  4. Cbc Cbc Public

    COIN-OR Branch-and-Cut solver

    C++ 969 134

  5. Clp Clp Public

    COIN-OR Linear Programming Solver

    C++ 479 94

  6. cuopt cuopt Public

    Forked from NVIDIA/cuopt

    This is a mirror of the NVIDIA cuOpt project. Please do not open PRs here.

    Cuda 12

Repositories

Showing 10 of 81 repositories
  • HiGHS Public Forked from ERGO-Code/HiGHS

    A mirror of the HiGHS LP solver repository. Do not open pull-requests here.

    coin-or/HiGHS’s past year of commit activity
    C++ 4 MIT 281 0 0 Updated Jan 14, 2026
  • ADOL-C Public

    A Package for Automatic Differentiation of Algorithms Written in C/C++

    coin-or/ADOL-C’s past year of commit activity
    C++ 171 37 54 9 Updated Jan 14, 2026
  • Dip Public

    DIP is a decomposition-based solver framework for mixed integer linear programs.

    coin-or/Dip’s past year of commit activity
    C++ 21 EPL-1.0 8 80 0 Updated Jan 14, 2026
  • MibS Public

    A solver for mixed integer bilevel programs

    coin-or/MibS’s past year of commit activity
    JetBrains MPS 59 19 6 4 Updated Jan 14, 2026
  • SYMPHONY Public

    SYMPHONY is an open-source solver, callable library, and development framework for mixed-integer linear programs (MILPs) written in C with a number of unique features

    coin-or/SYMPHONY’s past year of commit activity
    C 73 19 69 1 Updated Jan 14, 2026
  • DyLP Public

    Dynamic Simplex solver

    coin-or/DyLP’s past year of commit activity
    C 2 6 1 0 Updated Jan 14, 2026
  • CHiPPS-BLIS Public

    This is the BiCePS Linear Integer Solver (BLIS), a parallel solver for mixed integer linear programs that is implemented on top of the BiCePS layer of the CHiPPS framework.

    coin-or/CHiPPS-BLIS’s past year of commit activity
    C++ 8 EPL-1.0 6 2 0 Updated Jan 14, 2026
  • CHiPPS-BiCePS Public

    This is the Branch, Constrain, and Price Software (BiCePS), a layer of the COIN-OR High Performance Parallel Search framework supporting the implementation of relaxation-based optimization algorithms.

    coin-or/CHiPPS-BiCePS’s past year of commit activity
    Shell 8 EPL-1.0 5 5 0 Updated Jan 14, 2026
  • CHiPPS-ALPS Public

    This is the Abstract Library for Parallel Search (ALPS), the abstract base layer of the COIN-OR High Performance Parallel Search framework.

    coin-or/CHiPPS-ALPS’s past year of commit activity
    C++ 11 EPL-1.0 8 11 0 Updated Jan 14, 2026
  • Cbc Public

    COIN-OR Branch-and-Cut solver

    coin-or/Cbc’s past year of commit activity
    C++ 969 134 157 2 Updated Jan 12, 2026

Sponsors

  • @roboflow
  • @NablaZeroLabs
  • @blue-marble

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