GPlatesis desktop software for the interactive visualisation of plate-tectonics. GPlates offers a novel combination of interactive plate-tectonic reconstructions, geographic information system (GIS) functionality and raster data visualisation. GPlates enables both the visualisation and the manipulation of plate-tectonic reconstructions and associated data through geological time. GPlates runs on Windows, Linux and MacOS X. GPlates has an online user manual. GPlates is free software (also known as open-source software), licensed for distribution under the GNU General Public License (GPL), version 2.