Marine Genomics Observatories provide tools and protocols for long-term monitoring of marine ecosystems located in a well-defined and usually limited geographical area, in order to allow the study of their evolution over time. Hence, they yield a significant amount of heterogeneous and complex data (metabarcoding data, “classical” (morphology-base) biodiversity data, supplemental physico-chemical data), which needs to be organized and stored to enable interested parties to carry out downstream analyses. The MyGOD project (Manipulate Your Genomic Observatory Data) aims to explore and interpret the data of genomic observatories projects, by providing an integrated and user-friendly web-based visualization tool.