IPRO

The Ethics Codes Collection is the largest online repository of ethics codes and guidelines in the world. With over 2500 individual codes and guidelines from over 1500 organizations around the world, including current and historical codes dating to 1887, it is maintained by the Center for the Study of Ethics in the Professions at Illinois Institute of Technology.

Google Dataset Search is a search engine for datasets. Using a simple keyword search, users can discover freely available datasets hosted in thousands of open access repositories across the Web.

Re3data is a global registry of research data repositories that covers research data repositories from different academic disciplines. In addition to the fully functional search and browse features on the website, they offer a free API to facilitate retrieval of data.