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A COIN-OR Project

Projects such as this one are maintained by a small group of volunteers under the auspices of the non-profit COIN-OR Foundation and we need your help! Please consider sponsoring our activities.

Latest Release

This file is auto-generated from config.yml using the generate_readme script. To make changes, please edit config.yml or the generation scripts here and here.

CoinUtils is an open-source collection of classes and helper functions that are generally useful to multiple COIN-OR projects. These utilities include:

  • classes for storing and manipulating sparse matrices and vectors,
  • performing matrix factorization,
  • parsing input files in standard formats, e.g. MPS,
  • building representations of mathematical programs,
  • performing simple presolve operations,
  • warm starting algorithms for mathematical programs,
  • comparing floating point numbers with a tolerance
  • classes for storing and manipulating conflict graphs, and
  • classes for searching and storing cliques and odd cycles in conflict graphs, among others.

CoinUtils is written in C++ and is released as open source under the Eclipse Public License 2.0.

It is distributed under the auspices of the COIN-OR Foundation.

The CoinUtils development site is


Code: DOI


Windows Builds

Linux and MacOS Builds


What follows is a quick start guide for obtaining or building CoinUtils on common platforms. More detailed information is available here.

Docker image

There is a Docker image that provides CoinUtils, as well as other projects in the COIN-OR Optimization Suite here


For newer releases, binaries will be made available as assets attached to releases in Github here. Older binaries are archived as part of Cbc here.

  • Linux (see for a complete listing):

    • arch:
      $ sudo pacman -S  coin-or-coinutils
    • Debian/Ubuntu:
      $ sudo apt-get install  coinor-coinutils coinor-libcoinutils-dev
    • Fedora/Redhat/CentOS:
      $ sudo yum install  coin-or-CoinUtils coin-or-CoinUtils-devel
    • freebsd:
      $ sudo pkg install math/coinutils
    • linuxbrew:
      $ brew install coinutils
  • Windows: The easiest way to get CoinUtils on Windows is to download an archive as described above.

  • Mac OS X: The easiest way to get CoinUtils on Mac OS X is through Homebrew.

    $ brew tap coin-or-tools/coinor
    $ brew install coin-or-tools/coinor/coinutils
  • conda (cross-platform, no Windows for now):

    $ conda install coin-or-coinutils

Due to license incompatibilities, pre-compiled binaries lack some functionality. If binaries are not available for your platform for the latest version and you would like to request them to be built and posted, feel free to let us know on the mailing list.


Source code can be obtained either by

  • Downloading a snapshot of the source code for the latest release version of CoinUtils from the releases page,
  • Cloning this repository from Github, or
  • Using the coinbrew script to get the project and all dependencies (recommended, see below).


CoinUtils has a number of dependencies, which are detailed in config.yml. Dependencies on other COIN-OR projects are automatically downloaded when obtaining the source with coinbrew. For some of the remaining third-party dependencies, automatic download scripts and build wrappers are provided (and will also be automatically run for required and recommended dependencies), while other libraries that are aeasy to obtain must be installed using an appropriate package manager (or may come with your OS by default).

BUILDING from source

These quick start instructions assumes you are in a bash shell.

Using coinbrew

To download and build CoinUtils from source, execute the following on the command line.

chmod u+x coinbrew
./coinbrew fetch CoinUtils@master
./coinbrew build CoinUtils

For more detailed instructions on coinbrew, see The coinbrew script will fetch the additional projects specified in the Dependencies section of config.yml.

Without coinbrew (Expert users)

  • Download the source code, e.g., by cloning the git repo
  • Download and install the source code for the dependencies listed in config.yml
  • Build the code as follows (make sure to set PKG_CONFIG_PTH to install directory for dependencies).
./configure -C
make test
make install

Doxygen Documentation

If you have Doxygen available, you can build a HTML documentation by typing

make doxygen-docs

in the build directory. If CoinUtils was built via coinbrew, then the build directory will be ./build/CoinUtils/master by default. The doxygen documentation main file is found at <build-dir>/doxydoc/html/index.html.

If you don't have doxygen installed locally, you can use also find the documentation here.

Project Links