NECCTON is a project that aims to enable the Copernicus Marine Service (CMEMS) to deliver products that inform marine biodiversity conservation and food resources management, by fusing innovative ocean ecosystem models and new data. In order to maximise the dissemination, exploitation and communication of the results, an interactive Viewer (i.e. a “datacube exploratory viewer”), implemented as a customised instance of CMEMS data viewer (MyOcean Viewer), is being developed and configured to visualize and distribute NECCTON products. Indeed, visualization of the NECCTON outcomes is a crucial component of the communication strategy and this interactive application aims to ensure the exploration and visualization of NECCTON’s products supporting user needs. Datacubes are based on innovative cloud-based technologies and use a serverless architecture that allows direct connection to files rather to a server. This viewer guarantees high-availability, visual analysis, flexible data dissemination, and enables the monitoring (across all dimensions: lon, lat, depth, time) of which products and datasets are more frequently downloaded by investigators and stakeholders. This datacube exploratory viewer: · promotes free and open data dissemination; · allows the sub-setting and analysis of diverse datasets independently of existing HTTP interfaces such as the Web Map Service (WMS) protocol; · is compatible with the current MyOcean Viewer used by CMEMS. This will facilitate the eventual transfer of the tool to CMEMS. Future deployment and evolution of this application will help to engage stakeholders into dialogues around changing ecosystems, climate impacts and policy options, and to publicly disseminate project outputs with clear messages.