How to Research U.S. Court Cases for Free With CourtListener
Search public U.S. judicial opinions for free, evaluate a case's authority, and check later history before relying on it.
Search public U.S. judicial opinions for free, evaluate a case's authority, and check later history before relying on it.
Understand the free legal resource
CourtListener, operated by the nonprofit Free Law Project, provides searchable collections of U.S. court opinions and other legal information. Its public research resources can be valuable for students, reporters and people exploring case law.
Availability varies across courts and document types. A free legal search engine cannot guarantee that every opinion, filing or docket entry is included.
Start with court and citation
Search for a case name, legal issue or citation, then check the court, decision date, jurisdiction and procedural posture. Two cases with similar party names can concern entirely different legal questions.
Distinguish an opinion from a docket or party filing. A docket shows the procedural history, while an opinion explains particular judicial reasoning and outcomes.
Read the actual reasoning
Identify the facts the court considered, the legal question and the holding. Pay attention to whether a statement is a binding ruling, an incidental observation, or an argument reported from a party.
Follow statutory references and cited precedents using official courts or public legal repositories when possible. A search-result snippet is never enough to establish a legal rule.
Check whether the law has changed
Later appeals, reversals and new legislation can change the effect of a case. Investigate subsequent history and use current official materials before relying on an online judgment.
Different courts have different authority. A state court decision may be persuasive elsewhere but not binding, and a U.S. decision generally does not state the law for another country.
Use the research appropriately
Free public records can support learning and general information, but the right to act in a real dispute depends on local law and procedural deadlines. When rights, criminal charges or significant money are involved, ask a qualified professional or legal-aid provider.
Keep a clear research log with citation, date accessed and the official source you used to confirm the text. That makes later updates and corrections much easier.