Open Data

Open Data is a term used to describe data made openly available without restrictions or payment barriers — open access for data.


The home of the US Government’s open data: data, tools, and resources to conduct research, develop web and mobile applications, design data visualizations, and more.

European Union Open Data Portal

Discover, browse European Union datasets.  Visualization tools included.

Open Data Network

Explore, discover and contribute open data sets.  Visualization tools included.

125 years of US healthcare data including claim-level Medicare data, epidemiology and population statistics.


PubChem is a freely accessible database that provides information about small molecules. It brings together chemical information with biomedical research and clinical information from numerous public sources. It is a key component of NIH’s “Roadmap”, which is intended to accelerate medical discovery to improve health.

Google Public Data Explorer

Includes data from world development indicators, OECD, and human development indicators, mostly related to economics data and the world.

Data from the UK Government, including the British National Bibliography – metadata on all UK books and publications since 1950.

Canada Open Data

Government datasets and visualization tools.


Compilation of data from sources including the World Health Organization and World Bank covering economic, medical and social statistics from around the world.


ChemSpider is a chemistry search engine, which was “built with the intention of aggregating and indexing chemical structures and their associated information into a single searchable repository … available to everybody, at no charge.” Nature is now depositing chemical data in ChemSpider.

Pew Research Center Datasets

Raw datasets from research into American societal trends.






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