Legal research tools


Built on the same trusted foundation, there's a version of Westlaw that will meet your needs — and your budget

Westlaw Classic

Get accurate and comprehensive legal research you can trust.

Access the most comprehensive collection of primary and secondary law for thorough research.

Find related law quickly with the most reputable and granular subject classification system, the Key Number System.

Work confidently knowing you're relying on good law with the best-in-class citator, KeyCite.

Retrieve background history of attorneys, judges, experts, and companies.

Westlaw Edge

Gain a competitive advantage through intelligent insights and analysis.

Generate AI-enhanced reports indicating authority that may have been missed and authority contrary to your opponent’s position.

Access data-driven insights on judges, courts, attorneys, law firms, damages, and case types to enhance your case strategy.

Gain better exposure of invalid law with KeyCite Implied Overrulings.

Instantly compare statute and regulation versions.

Includes all of the features and functionality of Westlaw Classic.

Westlaw Precision


Rely on innovative capabilities that get you to relevant cases over 2X faster.

Search, filter, and browse by topic in half the time.

Quickly see the specific point of law in a case that has been invalidated.

View related cases that have a pattern of being cited together even if neither cites the other.

Speed up iterative searching, provide a graphical display of your research history, and better organize your research with enhanced workflow tools.

Includes all of the features and functionality of Westlaw Edge.

Westlaw is the most trusted and award-winning legal research service.

Related Westlaw offerings

Practical Law

Deliver your best work faster with expert how-to guidance, clear explanations of current law, and time-saving tools and templates that give you a better starting point.

Learn more about Practical Law

PeopleMap on Westlaw

Find people, assets, and hidden connections faster with the premier public records search tool.

Learn more about PeopleMap

Company Investigator on Westlaw

Get fast and accessible business intelligence, eliminating hours of research while helping you make informed decisions.

Learn more about Company Investigator

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