Reconstructing the palaeogeography and palaeotopography of the Earth has been a challenge since the advent of the plate tectonics theory in the 1960s. With the development of geographic information systems (GIS), many plate tectonics models have been created and allowed researchers to reconstruct the movements of plates back in time (up to 1 billion years for some models), based on geological evidence found in the present-day Earth. We present TopoChronia, a QGIS plugin that converts input data from plate tectonic models into quantified and synthetic topography. This plugin is optimized to work with the PANALESIS model, because it is the only one currently providing sufficient information in terms of geological features to reconstruct a fully quantified topography.