BioCollect is an advanced, but simple-to-use data collection tool for biodiversity science. It was developed by the Atlas of Living Australia in collaboration with many organisations to assist users in collecting field data for their own projects as well as to enable new biodiversity data to be easily copied into the ALA where it can be available for others to use in research, policy and management. This allows individual projects to collectively contribute to “big science”. BioCollect is designed for scientists, ecologists, citizen scientists and natural resource managers to collect and manage their biodiversity, ecological and natural resource management (NRM) data. It is hosted by the ALA and is free for public use. BioCollect provides form-based structured data collection for: 1) Assessment and monitoring activities such as: ad-hoc surveys; and method-based systematic structured surveys 2) Activity-based projects such as: revegetation; rehabilitation; or weed and pest management projects BioCollect also allows upload of unstructured data in the form of data files, grey literature, images, sound bytes, and video links.