Officially launched in November 2002, the World Legal Information Institute (WorldLII) is a "free, independent and non-profit global legal research facility" affiliated with several academic legal information institutes, among them Cornell's Legal Information Institute and others from Australia, Canada, Hong Kong, South Africa, Britain and Ireland, and the University of the South Pacific School of Law. WorldLII provides a single search facility for over 270 databases from 48 jurisdictions in 20 countries.

The user may select a resource area, among which are: legislation, case law, superior or high court decisions, journals, treaties, law reform, domain name decisions, and secondary materials.

Alternatively, a jurisdiction or geographic region may be selected, with an emphasis on Pacific and Commonwealth countries (for the United States only Supreme Court decisions are included).

Among recent additions to the website are World Trade Organization Panel Decisions 1998-, New Zealand Privacy Commissioner Cases 2002-, and materials from the Ontario Superior Court of Justice (CanLII).

Thanks to Stuart Basefsky of Cornell University, School of Industrial and Labor Relations' Martin P. Catherwood Library.