Legal research tools
Westlaw
Built on the same trusted foundation, versions of Westlaw are available to 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.
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Westlaw Edge
Gain a competitive advantage through intelligent insights and analysis.
Interested in advanced AI? Explore Westlaw Edge with AI-Assisted Research.
Upload legal documents to create a report 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 to invalid law with KeyCite Overruling Risk.
Instantly compare statute and regulation versions.
Includes all the features and functionality of Westlaw Classic.
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Westlaw Advantage
Move seamlessly from research to strategy with advanced AI.
Go beyond basic research using the agentic AI of Deep Research to get actionable answers from Westlaw’s industry-leading content.
Build stronger cases with less manual effort, uncovering strategic insights in real time with unmatched transparency.
Streamline your claims research with Claims Explorer, leveraging AI to find the strongest claims for your legal matter.
Gain deeper insights, uncover misrepresentations, and explore counterarguments with Litigation Document Analyzer.
Includes all the features and functionality of Westlaw Edge with AI-Assisted Research.
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Westlaw is the most trusted and award-winning legal research service.
Related Westlaw offerings
CoCounsel Legal
Transform your work with the only AI legal solution uniting research, drafting, and document analysis in a single experience. Designed by legal experts and built on trusted content and advanced AI, CoCounsel Legal accelerates multistep work so you can better serve your clients and grow your business.
CoCounsel Essentials
Automate essential legal tasks like document analysis, review, and drafting with an advanced AI tool built to boost productivity, accuracy, and confidence. CoCounsel Essentials enables you to deliver faster, more thorough work so you can focus on higher-level strategy and client relationships.
Practical Law
Accelerate how you find answers with powerful generative AI capabilities and the expertise of 650+ attorney editors. With Practical Law, access thousands of expertly maintained how-to guides, templates, checklists, and more across all major practice areas.
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