Free and Open Access Resources

The Centers for Disease Control and Prevention (CDC)'s website for data and statistics. As of February 2025, moved to https://archive.cdc.gov/

City of Chicago's open data portal is a lets you find city data, including restaurant inspections, water quality, crime statistics and much more.

The home of the U.S. Government’s open data. Over 230,000 sets of data, tools, and resources to conduct research, develop web and mobile applications, design data visualizations, and more.

The Dataverse Project at Harvard University hosts research datasets from around the world.

FigShare is a repository that allows researchers to share their data (FIGure SHARE).

GenBank ® is the NIH genetic sequence database, an annotated collection of all publicly available DNA sequences

GEO is a public functional genomics data repository supporting MIAME-compliant data submissions.

HSR Information Central contains selective links representing a sample of available information. Items are selected for their quality, authority of authorship, uniqueness, and appropriateness.

This table (with links) lists NIH-supported data repositories that make data accessible for reuse.

re3data.org offers links and detailed information on more than 2,000 research data repositories, Each of the 2,000 can be searched individually.

The Health and Medical Care Archive (HMCA) is the data archive of the Robert Wood Johnson Foundation (RWJF), the largest philanthropy devoted exclusively to health and health care in the United States.

The World Health Organization's (WHO) data and statistics website.