Brain Image Library

The Brain Image Library (BIL) is a public resource that serves the neuroscience community by providing a persistent repository for microscopy data. The scope of data accepted by the library includes: whole brain microscopy image datasets and their accompanying secondary data such as neuron morphologies, targeted microscope-enabled experiments including connectivity between cells, spatial transcriptomics, and historical collections of value to the community. BIL is the NIH designated repository for BRAIN Initiative microscopy data.

There is no-charge to contribute data to BIL or access BIL services. Data deposited in BIL may be downloaded or interacted with in-place at BIL using high performance computing resources. Deposited data does not need to have associated NIH funding, but does need to be relevant to the BRAIN Initiative. For more information about BIL, its data and services visit