SPIRITS is a freely distributed software developed in close collaboration with agro-meteorological and crop monitoring experts to provide decision making processes with science-based information. The user support includes a manual, a tutorial with a “Quick Start” section and test data sets, a website with a forum, a mailing list, a wiki and a data download section, and frequent trainings. SPIRITS integrates a large set of tools to process and analyse image time series and to produce maps and graphs for vegetation status analysis, as typically needed in the production of agro-meteorological bulletins. Although it can be used in a number of different environment-related domains, SPIRITS was primarily developed to analyse low resolution, high frequency satellite images for crop production monitoring. Its use is already consolidated in many institutions such as the Joint Research Centre (JRC) – Monitoring Agricultural Resources (MARS) unit, FAO, VITO, and several African Agencies related to early warning, where it has demonstrated its effectiveness to deal with image time series. The added value of SPIRITS is that it simplifies and significantly speeds up complex processes in a unique environment, giving users without programming skills the opportunity to perform and automate advanced analyses, to quickly process and plot large volumes of image derived statistics managed in the built-in database, to explore different approaches and to tune analyses on their needs.