Trusted by the world’s leading law firms
The definitive legal research platform for better outcomes
Unmatched legal depth
With over one billion primary and secondary documents and exclusive content from over 100 countries, Clio Library gives you certainty that what you need is there.
Always current
Stay ahead with daily updates from courts, governments, and regulatory bodies worldwide, so you never rely on outdated law.
Trusted global sources
Draw from over 2,500 authoritative sources, including courts, publishers, and exclusive partners, for comprehensive and reliable international coverage.
Smarter legal research
Go beyond keyword search. Clio Library uncovers hidden legal connections, validates case authority, and adapts to your research style, whether discovery, precision, or comparison.
Confidence in every argument
Stop second-guessing. With immediate clarity on relevance and authority, you build stronger cases and argue with conviction.
Expert oversight
Every result is strengthened by legal editors and subject-matter experts who curate, contextualize, and verify content for accuracy and practical relevance.
Determine case authority with confidence
Precedent map transforms complex citation analysis into immediate visual clarity, letting you assess case strength and discover relevant authorities at a glance:
- Avoid citing overturned cases: Instantly see which precedents have been positively cited, criticized, or overruled through color-coded visual indicators that eliminate guesswork about precedential value.
- Discover hidden connections: Uncover case relationships that traditional searches miss to strengthen your legal arguments with supporting precedents and distinguishing authorities.
- Research with surgical precision: Navigate directly from overview to detail with intelligent filtering that narrows results by treatment type, legal concepts, or jurisdiction—turning comprehensive research into focused insights.
Zero in on the legal reasoning that matters most
Key passages surfaces the most influential sections of legal decisions and shows you exactly how courts have interpreted and applied critical precedents over time:
- Cut through the noise: Access the exact paragraphs that other courts cite most frequently from judicial opinions, eliminating hours spent reading peripheral reasoning to find the core legal principles.
- Understand precedential weight: See which passages carry the most legal authority through citation frequency analysis, ensuring you build arguments on the strongest possible foundation.
- Chronological citation tracking: Follow how specific legal principles have developed over time through chronological citation tracking, giving you the narrative thread that connects past decisions to current applications.
Ensure your legal foundations are solid
Cited authorities helps you build arguments on reliable authority and gives you complete visibility into the legal sources underlying any decision, so you can stay ahead of legislative changes:
- Verify authority instantly: See the complete citation landscape of any case at a glance, distinguishing between case law and legislation while understanding the significance of each cited source.
- Stay ahead of legislative changes: Receive immediate alerts when statutes or regulations you’re relying on have been amended, with clear highlighting of what changed and when.
- Research with historical accuracy: View legislation as it existed at any point in time, ensuring your legal analysis reflects the law as it stood when cases were decided rather than current versions that may not apply.
Search Capabilities
Search on your own terms
Find what matters instantly
Get instant suggestions as you type, surfacing relevant cases, statutes, and secondary sources before you finish your query. No more guessing at search terms or wondering what you might have missed.
Navigate any jurisdiction easily
Navigate legal research intuitively by filtering through jurisdictions, courts, and practice areas. Perfect for exploring new legal territory or when you’re not sure exactly what you’re looking for yet.
Pinpoint the right case
Deploy powerful Boolean operators and precision filters to find exactly what you need. Ideal for complex queries where you know precisely what you’re seeking and want comprehensive, targeted results.
Compare laws across borders
Research across multiple jurisdictions simultaneously to spot differences in legal approaches. Essential for multi-state matters, international transactions, or building comprehensive legal strategies.
Legal research software FAQs
How comprehensive is Clio Library's legal coverage compared to other legal research databases?
Clio Library provides access to over one billion legal documents from over 100 countries, making it one of the world’s most comprehensive global legal research platforms. Unlike competitors focused primarily on US or UK law, it offers primary law, secondary sources, and exclusive publications from major jurisdictions across the globe. Clio Library’s over 2,500 data sources include courts, governments, publishers, and exclusive partners that can’t be found on any other platform.
How does Clio Library's precedent map help me research more effectively?
Precedent map transforms complex citation analysis into immediate visual clarity through color-coded indicators that show whether cases have been positively cited, criticized, or overruled. This eliminates the guesswork about precedential value and helps you avoid citing bad law. You can instantly see case relationships that traditional searches miss, navigate directly from overview to detail with intelligent filtering, and discover hidden connections to strengthen your legal arguments.
How current is the legal content in Clio Library?
Clio Library receives over 350,000 daily updates from official courts, governments, and regulatory bodies worldwide. Our amendment tracking system provides automatic alerts when statutes or regulations change, with clear highlighting of what changed and when. You can also view legislation as it existed at any point in time, which ensures your legal analysis reflects the law as it stood when cases were decided.
What search methods does Clio Library offer for different research needs?
Clio Library offers four flexible search methods to match how you prefer to work: Receive instant suggestions as you type, navigate intuitively by filtering jurisdictions and practice areas, deploy powerful Boolean operators for precision queries, and conduct simultaneous multi-jurisdictional analysis. This flexibility ensures you can find exactly what you need, however you think about legal research.
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See how Clio Library’s billion-document strong database is a truly transformative legal research platform.
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