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 Leverage generative AI to jumpstart your research with faster answers to your legal questions. | 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 Displays a graphical visualization of your research history. | 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 Cautions you when a point of law has been implicitly undermined. | No | Yes | Yes |
| WestSearch Plus Offers predictive research suggestions to 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.
Company Investigator on Westlaw
Get fast and accessible business intelligence, eliminating hours of research while helping you make informed decisions.
Westlaw Form Builder
Streamline your drafting process with Westlaw Form Builder, the online document assembly tool you can use from anywhere.