PLUMED is an open source library for free energy calculations in molecular systems which works together with some of the most popular molecular dynamics engines. Free energy calculations can be performed as a function of many order parameters with a particular  focus on biological problems, using state of the art methods such as metadynamics, umbrella sampling and Jarzynski-equation based steered MD. The software, written in C++, can be easily interfaced with both fortran and C/C++ codes.

PLUMED is free software! To get the it click here

October 2015: We are moving our website to Until June 2016 you can find us at both the old URL ( and the new one. But, please update your bookmark to the new URL!

May 2014: the second PLUMED tutorial and user meeting was held in Belfast.

October 2013: we have released PLUMED2!

Recent News

  • New release: PLUMED 2.2.2
    PLUMED version 2.2.2 is now available for download. It is a maintenance release on the 2.2.x branch that fixes a few bugs and adds some optimization to the code, see: 

    You can find the new version in the download section of the plumed webpage. It is also tagged on github (v2.2.2).
    Posted Apr 13, 2016, 7:58 AM by Carlo Camilloni
  • New releases: PLUMED 2.1.5 and 2.2.1
    We are pleased to announce two new PLUMED releases.

    Release 2.1.5 is the last maintenance release on the 2.1.x branch with a few fixes, see:

    Release 2.2.1 is a maintenance release on the 2.2.x branch that contains a few fixes and a new enhanced sampling method, see: should be considered the stable plumed version.

    Notice that branch 2.1.x will not be maintained anymore, so users are encouraged to upgrade to the new 2.2.x release. Just read carefully the change log before upgrading.

    You can find both releases in the download section of the plumed webpage. They are also tagged on github (v2.1.5 and v2.2.1).
    Posted Jan 18, 2016, 1:14 AM by Carlo Camilloni
  • Plumed 2.2 and 2.1.4 now officially released!
    It is a pleasure to announce two new PLUMED releases.

    Release 2.1.4 is a maintenance release on the 2.1.x branch with a few fixes, including important ones in NAMD patches (requires re-patching) and in HISTOGRAM keyword, see:

    Release 2.2.0 is a release that contains several new features, including a partial openMP parallelization and several new collective variables and methods, see: This version can now be considered as fully stable.

    We will still fix bugs in branch 2.1.x for a while, but users are encouraged to upgrade to the new 2.2.x release. Just read carefully the change log before upgrading.

    You can find both releases in the download section of the plumed webpage. They are also tagged on github (v2.1.4 and v2.2.0).
    Posted Oct 13, 2015, 2:23 AM by Carlo Camilloni
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