Organic materials database (OMDB) is created and maintained by the research group at Nordita (Stockholm, Sweden) as a part of the research on Dirac materials. OMDB focus is on electronic structure, density of states and other properties for purely organic and organometallic compounds that are known to date. The electronic band structures are calculated using density functional theory for the 6688 crystal structures contained in the Crystallography Open Database. This database is a tool to be used in guided materials search and discovery. OMDB web interface allows for identifying materials with certain target band structure properties specified by the user.