Projects / ROOT


ROOT is an OO framework for large-scale scientific data analysis and data mining. It contains an efficient hierarchical OO database, a C++ interpreter, advanced statistical analysis, visualization, introspection, documentation, networking, and GUI classes. The command/scripting language is C++, and large scripts can be compiled and dynamically linked in. Using the PROOF (Parallel ROOT Facility) extension, large databases can be analyzed in parallel. The system runs on all known POSIX platforms, Windows, and MacOS X.

Operating Systems

Recent releases

  •  28 Jul 2012 02:07

    Release Notes: Numerous bugfixes and enhancements.

    •  19 Jul 2008 23:18

      No changes have been submitted for this release.

      •  10 Apr 2002 09:39

        Release Notes: This is a consolidation release. In addition to the bug fixes, this version includes also several new developments.

        •  20 Aug 2001 18:54

          Release Notes: Many changes were made in the database system. All DB files are now fully self describing. Objects can be read even without having loaded the shared libraries containing the related class code. A major upgrade was made in the Tree system (class TTree).

          •  21 Dec 1999 05:00

            No changes have been submitted for this release.


            Project Spotlight


            A Fluent OpenStack client API for Java.


            Project Spotlight

            TurnKey TWiki Appliance

            A TWiki appliance that is easy to use and lightweight.