Download the FieldTrip toolbox
You can download the FieldTrip toolbox here.
Prior to downloading, you might want to check whether your computer meets the MATLAB requirements.
After downloading the toolbox, you unzip it and add the directory in which all the .m files are located to your path. See also this question about setting up the MATLAB path.
You can download the tutorial data here.
The FieldTrip toolbox is developed and released under the GPL license (see below). The toolbox depends on some external software contributions, which may not be covered under the GPL. All external software that is distributed along with the FieldTrip release version contains an explicit README and an explicit COPYING file that detail the copyrights for that specific part and the license under which that software is distributed.
The FieldTrip toolbox is
Copyright (C) 2008-2018, Donders Institute, Radboud University, The Netherlands (DCCN, DCC, DCN, DCMN)
Copyright (C) 2014-2018, Karolinska Institute, Stockholm, Sweden (NatMEG)
Copyright (C) 2012-2016, Max Planck Institute for Psycholinguistics, The Netherlands (MPI)
Copyright (C) 2010-2013, Swammerdam Institute for Life Sciences, University of Amsterdam (SILS)
Copyright (C) 2008-2009, Centre for Cognitive Neuroimaging in Glasgow, United Kingdom (CCNi)
Copyright (C) 2009-2009, Netherlands Institute for Neuroscience (NIN)
Copyright (C) 2003-2008, F.C. Donders Centre, Radboud University Nijmegen, The Netherlands (FCDC)
Copyright (C) 2004-2007, Nijmegen Institute for Cognition and Information, The Netherlands (NICI)
Copyright (C) 2004-2005, Universitatsklinikum Hamburg-Eppendorf, Germany (UKE)
Copyright (C) 2003-2004, Center for Sensory Motor Interaction, University Aalborg, Denmark (SMI)
Copyright (C) 1999-2003, Department of Medical Physics, Katholieke Universiteit Nijmegen, The Netherlands (MBFYS)
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.