The legal research database for confident, defensible work
Research Across 100+ Jurisdictions. Primary law, secondary sources, and exclusives, all in one place.
Case law research
Treatments & signals
Key passages
Advanced Search
Alerts & updates
Historical views
Matter Aware Workflows
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Easily Manage Cases
Handle matters effortlessly and increase productivity. -
Secure and Compliant
GDPR, PCI, HIPAA, and SOC2 compliant. -
Seamless Collaboration
Enhance client communication with easy-to-use tools. -
Grow Your Business
Boost cashflow and efficiency with Clio.
Comprehensive legal research software that works for every member of your firm
Partners and litigators get instant clarity on controlling law and treatments.
✓ Surface passages courts cite most
✓ See if a case is still good law
✓ Track how principles evolve over time
✓ Compare across jurisdictions
✓ Build stronger arguments in less time
Associates work faster with signals, smart suggestions, and historical views.
✓ Color-coded treatments show how courts handled a case
✓ Smart suggestions speed up query building
✓ Historical versions keep citations accurate
✓ Alerts notify you when statutes change
✓ Filters refine by treatment and concept
Paralegals and research attorneys stay organized and proactive.
✓ Browse by jurisdiction, court, or practice area
✓ Advanced search for pinpoint queries
✓ Discover hidden connections traditional searches miss
✓Save and share findings for writing teams
✓ Keep clients informed with confidence
Operations and knowledge managers standardize how research happens.
✓ Consistent workflows and saved filters
✓ Cross-jurisdiction comparisons in one view
✓ Coverage analytics and source transparency
✓ Faster onboarding with intuitive UI
✓ Works within broader legal work platform
IT and security teams get enterprise-grade protections and reliable uptime, backed by trusted industry endorsements.
✓ SOC 2 and ISO 27001 controls validated by independent assessors
✓ Zero-retention policy with model providers for AI features
✓ Administrative controls for access and sharing
✓ Continuous security monitoring
How Clio’s Legal Database Library works with the rest of the Clio platform
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Clio Library: Legal Research & Database
✓ Surface controlling authorities faster with treatments, key passages, and historical views.
✓ Explore across jurisdictions with advanced search and filters. -
Vincent by Clio: AI for the Practice of Law
✓ Ask complex questions in plain language and get citation-backed answers grounded in Clio Library.
✓ Map precedential weight and spot on-point passages instantly. -
Clio Draft: Automated Legal Drafting
✓ Turn findings into polished motions, letters, and templates in clicks.
✓ Merge matter data to keep facts, parties, and citations consistent. -
Clio Manage: Easily Manage your Law Firm
✓ Save research, drafts, and tasks directly to the right matter.
✓ Keep deadlines, client updates, and billing in one secure workspace.
Focus on the work that only you can do—let Vincent AI handle the rest
Bring the power of AI to the industry’s leading case management software.
Primary law, secondary sources, and ongoing updates across jurisdictions.
Spot the Insights That Matter
See the key passages, case validity, and statute changes instantly.
Stay Current Without Extra Work
350K+ new documents daily keep your research up to date.
Signals, key passages, and citation analysis for faster confidence.
Cite the Right Version Every Time.
Access the law exactly as it stood at any moment in time.
Ask Vincent and validate in Library for citation-backed answers.
Build Stronger Arguments with Precedent.
Follow how principles evolve to strengthen every argument.
Work Smarter, Not Harder
Practical, intuitive workflows tailored to small firms.
Approved by 100+ bar associations & law societies
Clio is the only legal research software on the market approved by all 50 state bar associations in the United States.
Legal Research Software Tour
See Clio in Action
Legal research database and case law research for modern firms
Replace scattered sources with a single, authoritative research workflow.
✓ Ask Vincent in plain language, then validate in Clio Library
✓ Research cases and statutes securely on desktop or mobile
✓ Turn findings into polished motions and client updates with Clio Draft
✓ Keep notes, sources, and tasks tied to the correct matter
✓ Share clean, citation-backed updates with clients quickly
Achieve enterprise-level research speed without extra overhead.
✓ Standardize saved searches, filters, and alert setups across the team
✓ Use signals and key passages to cut review time
✓ Build shared research folders in Library
✓ Set alerts for priority issues and get notified as new documents arrive
Unify teams, technology, and knowledge to deliver better outcomes.
✓Govern research with consistent workflows and coverage visibility
✓ Optimize case strategy with cross-jurisdiction comparisons and analytics
✓ Integrate with the wider Clio platform to connect research to work
Clio—designed and built to meet the exact needs and nuances of your law firm
Every practice area. Any law firm size, small or large.
An award winning platform, loved by our customers
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Frustrated by outdated legal software?
We understand switching systems can feel overwhelming. That’s why Clio makes it simple: AI-enabled workflows reduce the learning curve, and our dedicated onboarding team ensures your transition is fast, accurate, and stress-free.
Migration
Consultation
Data Export
& Processing
Data Import
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See for yourself how 150,000+ legal professionals like you use Clio to manage their workload.
Get more with your software
Receive award-winning support, unlimited document storage, access to Clio integrations, and more—at no extra cost.
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Unlimited data storage
Maintain full data ownership, and control it all with multi-level user permissions.
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Award-winning 24/5 support
Get the help you need, when you need it with unlimited support by phone, email, or live chat.
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Worry-free data migration
Bring in your data regardless of user count and get set up in a way that works for your firm.
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Industry-compliant online payments
Accept client payments anytime, anywhere with competitive processing rates and no hidden fees.
Integrate Clio with the tools you already use and love.
With over 250 apps available in the Clio App Directory, the tools your firm loves and needs are only a click away.
Join thousands of legal professionals at the legal industry's #1 conference
Frequently Asked Questions about Clio Library’s legal research database
Does this help with legal research and writing?
Yes, find the right authorities faster, then generate drafts that keep citations and matter details consistent.
What is a legal research tool or legal research database?
Software that lets you search primary and secondary law, evaluate authority with signals, and organize findings for legal research and writing.
How does online legal research work in Clio Library?
Search by keyword or citation, filter by jurisdiction or court, then review treatments and key passages to confirm whether the law is still valid. Alternatively you can use Vincent to ask complex questions in plain language and get citation-backed answers grounded in Clio Library.
What kind of customer support is included?
The best support. We offer unlimited support 24 hours a day, 5 days a week, so we can answer any questions you might have without impairing your working day.
How do I transfer my current cases into my new software?
Our data migration team can assist in bringing over information from another legal case management solution to our software so that you don’t have to do it manually.
How is Clio Library different from other legal research platforms or law research tools?
It pairs broad coverage with research intelligence like treatments, key passages, historical views, and alerts, then connects results to your matters.
How do treatments and signals help with case law research?
They show whether a case is followed, distinguished, questioned, or overruled so you avoid citing bad law.
Can I set permissions and restrict access to specific documents?
Yes, you can use Clio’s user permissions to restrict access to specific users at the Matter level. Only those who have permission to a Matter will be able to access the documents within that Matter.
Does Clio Library support legal research and writing with Clio Draft?
Yes. Validate authorities in the legal research database, then send citations and facts to Clio Draft to create motions, letters, and client updates.
How does Clio Library integrate with Vincent by Clio and Clio Manage?
Ask Vincent complex questions, validate answers in Library, draft in Clio Draft with live context from your Clio Manage account with matter data.
Can I compare across jurisdictions and run advanced searches?
Yes. Use Boolean search and filters for jurisdiction, court, topic, and date, then compare how principles differ across venues.
