Legal Information Institute
Legal Information Institute: A free web reference for U.S. primary law, legal commentary, citations, and alerts. Ranked #17 of 32 in Legal Research Software by our editors (7.3/10); pricing: Free plan; best for free U.S. primary-law reference.
At a glance
- Editor score7.3 / 10
- PricingFree plan
- Best forFree U.S. primary-law reference
- Free planYes
- Paid fromFree
- Statute & regulation searchYes
- Founded1992 · Ithaca, New York, United States
- Facts checked24 Sep 2026
Where it wins
- Free access to major federal statutes, regulations, rules, and decisions
- State-law resources covering all 50 U.S. states
- Wex, citation tools, and Supreme Court notifications in one site
Where it doesn't
- No docket-search capability
- Research breadth is narrower than paid legal databases
- Court of Appeals coverage is limited to a searchable index of selected decisions
Our verdict on Legal Information Institute
Legal Information Institute (LII) is a free, web-based legal information project from Cornell Law School. It serves lawyers, students, researchers, and members of the general public who need online access to U.S. primary-law materials and supporting reference content. The service covers federal law, state-law resources, selected world-law materials, legal commentary, citation resources, and Supreme Court notifications without requiring a paid plan.
LII’s pricing model is straightforward: access is free, with no paid tiers described. Its collections include the U.S. Constitution, U.S. Code, Code of Federal Regulations, federal rules, executive orders, legislative materials, searchable Supreme Court decisions, and state statutes and regulations. Wex adds a searchable legal dictionary and encyclopedia, while the citation finder bookmarklet and related citation resources support source identification. Supreme Court Bulletin case previews and decision notifications add a focused monitoring option for users following the Court.
The main tradeoff is scope. LII provides broad public access to core U.S. legal materials, but it does not offer docket search and has less advanced research breadth than paid databases. Its Court of Appeals offering is a searchable index of selected decisions rather than a comprehensive research environment. Choose LII for free access to foundational federal and state-law resources, introductory legal research, citation help, and Supreme Court updates. Organizations that need extensive case-law coverage, docket research, or deeper paid-database functionality should choose a more specialized alternative.
Your product? Our editors can test Legal Information Institute in depth and publish a review, labelled as paid · from $149/mo →
Legal Information Institute pricing
Legal Information Institute fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Case law search | Yes |
| Statute & regulation search | Yes |
| Docket search | Not verified |
| Legal commentary | Yes |
| Citation tools | Yes |
| Jurisdiction coverage | United States federal and state |
| Research alerts | Yes |
| Deployment | Cloud |
| Platforms | Web |
| Support | |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Pricing | Free plan |
| Website | law.cornell.edu |
| Facts checked | 24 Sep 2026 |
Alternatives to Legal Information Institute
- WestlawA broad core research platform for legal professionals handling complex U.S. matters.9.4
- Lexis+A broad U.S. legal research workspace combining authorities, guidance, citation analysis and alerts.9.2
- CanLIIA free web-based research library focused on Canadian legal materials.9.1
See all Legal Information Institute alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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