Legal research tools


Westlaw has always been the standard for legal research because of our content, proprietary editorial enhancements like the West Key Number System and KeyCite, and market-leading technology.

Advanced legal research

Westlaw Edge

The newest version of Westlaw brings together a legacy of quality, accuracy, and the latest advancements in technology for legal research.

Go beyond traditional research methods to transform how you search, compare, and analyze the law with unrivaled, first-of-its-kind features.

Online legal research

Westlaw Classic

Trusted by generations of legal professionals, Westlaw Classic offers comprehensive content and essential features that enable effective, accurate research.

Find accurate answers fast with WestSearch, the original legal search engine, and exclusive editorial enhancements that organize and connect the content. 

Compare Westlaw Edge to Westlaw Classic

Westlaw Edge builds on the trusted foundation of Westlaw Classic to help you research in ways never before possible.

Westlaw products
Shop Westlaw Classic plans Shop Westlaw Edge plans
Primary Law The most comprehensive, accurate, and up-to-date collection of legal information. Yes Yes
Secondary Sources Leverage premier analytical titles to get up to speed in new areas of the law or revisit familiar ones. Yes Yes
Litigation Materials Get fully integrated briefs, pleadings, motions, and memoranda, and dockets. Yes Yes
KeyCite Rely on the industry's most complete and accurate citator to ensure you rely on good law. Yes Yes
Key Number System Use the most comprehensive and widely used indexing system for caselaw. Yes Yes
Headnotes View concise summaries of the points of law discussed in a case. Yes Yes
Intelligent document analysis Find highly relevant authority that traditional research may have missed with Quick Check. No Yes
Data-driven insights Get data-driven insights on judges, courts, attorneys, law firms, and case types with Litigation Analytics. No Yes
Citation safeguards Keycite Overruling Risk cautions you when a point of law has been implicitly undermined. No Yes
Next-generation search WestSearch Plus offers predictive research suggestions to deliver the most relevant information for your legal issue. No Yes
Statutes and regulations tracking See how any two statutes or regulations have changed over time with Statutes Compare and Regulations Compare. No Yes