The "Rule of Law Index" is released by the World Justice Project (WJP). The WJP is an independent, non-profit organization that aims to advance the rule of law around the world by promoting its principles and identifying best practices. The organization was founded in 2006, and it has since become a leading voice in the global conversation about the rule of law.

The Rule of Law Index is the WJP`s flagship research product. It is a comprehensive assessment of the state of the rule of law in countries around the world, based on over 130,000 household and expert surveys conducted in 128 countries and jurisdictions. The index measures a variety of factors, including constraints on government powers, absence of corruption, open government, fundamental rights, and access to justice.

The Rule of Law Index is widely recognized as a valuable tool for policymakers, researchers, and civil society organizations working to promote the rule of law. It is used by governments and other stakeholders to identify areas where reforms are needed and to track progress over time. It is also used by academics and researchers to study the relationship between the rule of law and other social, economic, and political factors.

In summary, the Rule of Law Index is released by the World Justice Project, a non-profit organization dedicated to advancing the rule of law worldwide. The index is a comprehensive assessment of the state of the rule of law in countries around the world, and it is widely recognized as a valuable tool for policymakers, researchers, and civil society organizations.