The BOLD platform is comprised of a set of integrated databases. Some of these databases like the Public Data Portal and BIN database are primary sources of data while the publication and primer databases play a supporting role.

Public Data Portal

A data retrieval interface that allows for searching all public records in BOLD using multiple search criteria including, but not limited to, geography, taxonomy, and depository. Search results can be summarized, plotted on high-res maps, and downloaded.

BIN Database

A searchable database of Barcode Index Numbers (BINs), sequence clusters that closely approximate species. This system allows for rapid validation and use of barcode data where taxonomic data are lacking or unverified.


A collection of barcode publications and publications that have utilized barcode records.

Primer Database

A comprehensive registry of primers used in the generation of barcode sequences. The registry is maintained by users of BOLD.