Legal research tools

Compare Westlaw plans

Westlaw is the standard for legal research. Discover a new level of efficiency with a Westlaw subscription.

Unrivaled legal research

Westlaw Precision

Now with generative AI

Powered by trusted content, exclusive editorial enhancements, and advanced technology, Westlaw Precision allows you to conduct research faster without sacrificing confidence in your results.

AI-Assisted Research on Westlaw Precision provides relevant answers to research questions with links to trusted Westlaw authority so you can make more well-informed decisions and complete the remainder of your research with increased efficiency.

See how the latest evolution in legal research can elevate your research. 

Advanced legal research

Westlaw Edge

Westlaw Edge includes all the latest advancements in legal technology, plus the essential features you’ve come to know and trust.

Get access to advanced tools like intelligent document analysis, a powerful legal search engine, and integrated litigation analytics that can help you expedite legal research tasks that were once incredibly complex and time consuming.

Learn about Westlaw Edge plans for law firms, companies, and government agencies

Leverage an intelligent legal research service.

Basic plan

Westlaw Edge Single State Primary

Access cases, statutes, regulations, and administrative decisions from a single state with this simple but powerful plan.

Expanded plan

Westlaw Edge All States Primary

Quickly identify the information you need to resolve client issues with access to Westlaw Edge functionality and primary law from all 50 states.

Premium plan

Westlaw Edge All States & Federal Primary

Use primary law content from all 50 states and federal resources to ensure you are comprehensive with your research while using the best tools Westlaw has to offer.

Complete your research more efficiently with this powerful legal research service.

Basic plan

Westlaw Edge Single State Primary

Cases, statutes, and court rules for a single state, powered with advanced technology, make it ideal for law firms with a local focus.

Expanded plan

Westlaw Edge All States Primary

Primary law resources for all states, powered with advanced technology to help you quickly, effectively, and accurately solve your clients’ needs.

Premium plan

Westlaw Edge All States & Federal Primary

Primary law resources for all State and Federal Circuits, powered by advanced technology, ideal for law firms with regional and national reach.

Access fast, accurate, and first-of-its-kind tools with this advanced legal research service.

Premium plan

Westlaw Edge Core

Transform your legal research with advanced tools to quickly reach another level of legal understanding.

Access fast, accurate, and first-of-its-kind tools with this advanced legal research service.

Essential plan

Westlaw Edge State Essentials

Get access to cases, statutes, regulations, and agency and administrative materials from a single state with this powerful plan.

Primary plan

Westlaw Edge State Primary

Ensure you are delivering the best possible results with access to your state’s primary law content and related federal materials, including proposed regulations and legislation.

Primary plus plan

Westlaw Edge State Primary plus Analytical

Build on our State Primary plan with access to leading Secondary Sources from all 50 states and national analytical titles, including Forms, Practice Guides, ALRs, AmJur, Restatements, CJS, and more.

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 proprietary editorial enhancements, including Headnotes, Notes of Decision, and the Key Number system.

See which Westlaw Classic plan is best suited for your organization.

Discover Westlaw Classic plans that fit the needs of your organization

Get the plan you need for fast, effective legal research.

Basic plan

Westlaw Single State Primary

Small Law primary law subscription that includes updated single state-level cases, statutes, regulations, and administrative decisions along with Westlaw’s powerful citator, advanced search, and organizational tools.

Expanded plan

Westlaw All States Primary

With primary law resources from all 50 states, you can quickly identify the information to solve your client's needs and reference precedent in other jurisdictional areas.

Premium plan

Westlaw All States & Federal Primary

The comprehensive set of primary law resources with access to content from all 50 states, circuit courts, and federal jurisdictions.

Get the right tools to fit your firm’s unique needs to research confidently and quickly.

Basic plan

Westlaw Single State Primary

Access continuously updated single state-level primary law resources for your firm.

Expanded plan

Westlaw All States Primary

With all state primary law resources, you can quickly identify the information to solve your client's needs and reference precedent in other jurisdictional areas.

Premium plan

Westlaw All States & Federal Primary

Primary law subscription for your firm, which includes all State and Federal Circuit specific primary law resources.

Stay current on matters important to the business with essential features for fast and effective legal research.

Basic plan

Westlaw Classic Core

Access foundational legal research content so you can know the current state of the law and act with confidence.

Expanded plan

Westlaw Classic Core Plus

Build on your legal research foundation with authoritative and extensive secondary sources so you can interpret the law and act faster.

Compare Westlaw capabilities

Westlaw Classic Westlaw Edge Westlaw Precision
AI-Assisted Research Harness the power of generative AI and more precise researching. No No Yes
Precision Research Find legally and factually similar cases faster and more effectively than ever before. No No Yes
KeyCite Cited With View related cases that have a pattern of being cited together even if neither cites the other. No No Yes
KeyCite Overruled in Part Quickly identify the specific point of law in a case that has been invalidated. No No Yes
Outline Builder Drag and drop citations and text snippets into a customizable outline while you research. No No Yes
Graphical View of History Visualize your research history with graphical displays. No No Yes
Keep List/Hide Details Save potentially useful cases and hide cases you don’t want to inadvertently re-review. No No Yes
Quick Check Find highly relevant authority that traditional research may have missed. No Yes Yes
Litigation Analytics Get data-driven insights on judges, courts, attorneys, law firms, and case types. No Yes Yes
KeyCite Overruling Risk Receive alerts when a point of law has been implicitly undermined. No Yes Yes
WestSearch Plus Obtain predictive research suggestions that deliver the most relevant information for your legal issue. No Yes Yes
Statutes Compare and Regulations Compare See how any two statutes or regulations have changed over time. No Yes Yes
Authoritative content Rely on premier content such as primary law, secondary sources, litigation materials, and public records. Yes Yes Yes
Editorial enhancements Leverage proprietary enhancements like the Key Number System, KeyCite, Headnotes, and Notes of Decisions. Yes Yes Yes

Additional Westlaw offerings

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

Westlaw Form Builder

Streamline your drafting process with Westlaw Form Builder, the online document assembly tool you can use from anywhere.

Learn more about Westlaw Form Builder