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Search millions of cases across US federal and state courts using natural language, Boolean operators, or citation strings.
A cited authority expanded to its exact source text, with the supporting citations listed

A cited authority with its exact source text

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Search Methods

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Natural Language

Describe what you’re looking for:
“Cases where the court discussed qualified immunity in excessive force claims”

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Boolean Operators

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Citation Lookup

Search by citation string directly:
“410 U.S. 113”
Citation strings are resolved in Bluebook and standard US reporter formats.

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Filters

Jurisdiction

US federal and state courts

Court

Specific courts or tribunals (e.g. SCOTUS, 9th Circuit, state supreme courts)

Year / Date range

Cases from a particular period

Judge

Cases authored or joined by a specific judge

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Result Fields

Every search result returns:
  • Case title and citation - all known citation strings
  • Court and date
  • Judges - bench composition
  • Relevance score - 0 to 1, calibrated per query
  • Snippet - matching passage from the judgment with the query terms highlighted
Filter by Court first to cut noise. A query for “qualified immunity” against all US courts returns thousands of opinions; the same query scoped to 9th Circuit, 2020-present is immediately practitioner-ready.

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Ready-to-run prompt

Doctrine survey - find the leading cases on a doctrine, group by circuit, flag splits.

Citations

Resolve, search, and traverse the citation network.

Citation Graph

Walk the forward and backward citation graph from any case.

Deep Research

Multi-hop reasoning when the answer needs more than one search.

Agent Mode

Autonomous research across cases, statutes, and the web.