A database for storing MultiCellDS files. In the future, MultiCellDB will include a curated library of quality-controlled digital cell lines, starting with digital representations of breast cancer (MCF7, MCF10A, MDA-MB-231), lung cancer (HCC827, H1975), and metastatic colon cancer (HCT-116 and patient-derived lines) cell lines. The user interface and API are under active development.