Open access datasets are just that--openly accessible. Examples of open access datasets include public government information such as U.S. Census Data or Data.gov, as well as datasets from scholarly researchers like Mapping Police Violence, or even businesses making their data public, like Yelp.
View more open access and public datasets.
According to Open Access Netherlands, "A publication is defined 'open access' when there are no financial, legal or technical barriers to accessing it - that is to say when anyone can read, download, copy, distribute, print, search for and search within the information, or use it in education or in any other way within the legal agreements."