Mobmap is a visualization platform for spatio-temporal data easily and simply. This next generation GIS tools is released as a Google Chrome application for anyone. Recently, location data tend to be available to the public. This origin starts with the spread of iot devices including smartphone and open data such as aerial photos or satellite imageries. However, time series data analysis and visualisation on map tend to be unsupported by general gis software and libraries. Mobmap enables users to deal with time series location data. This presentation shows the summary and demos of Mobmap using several data examples such as simulated people flow data from geo tagged tweets and estimated building age transition data from multi temporal aerial photos, estimated future population.