FREE · OPEN SOURCE · U.S. CASE LAW
Find U.S. case law.
Search real cases. Read the original opinion. Save useful cases and passages.
Start with a search
More on CourtListener ↗No imports or account needed. Results come from CourtListener’s public search feed.
Your saved cases
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Import opinions or restore a backup
Import a workspace backup, JSON source array, or UTF-8 .txt opinions. Files stay in this browser. PDF import is not supported.
Up to 2,000 sources and 10 million text characters. A restore merges with your saved cases.
Advanced search in saved sources
Combined searches use reciprocal rank fusion. Phrase matching uses a 1,200-character window in actual source text.
Delete browser data
Download a backup first if you want to keep your work.
Three steps
- Find cases. Use keywords, a case name, or a citation. Narrow by court when useful.
- Read the original. Each result links to its CourtListener opinion. The preview is a discovery snippet, which can include dissenting or procedural text.
- Save what helps. Save cases with one click. Add a note or paste actual opinion text to preserve a quotation and page or paragraph reference.
What search covers
Live results are real records from CourtListener, provided by Free Law Project. The public feed returns a limited set of recent matches, up to 20, newest first. It is not a complete relevance-ranked search. Use “More on CourtListener” for relevance sorting and additional results. Zero matches does not establish that no authority exists. Some original opinion pages may require a browser security check or block access. “Find another copy” searches Google for the case title, year, and citation when supplied. Verify that any alternative copy matches the court, date, and opinion you intended to read.
Your work is saved on this device
Cases, imported text, and notes are stored in this browser’s IndexedDB. They are not uploaded. Search queries are sent to EvolveTech and CourtListener; hosting providers may log those requests. Following an original-opinion link visits that service. Clearing browser data, private browsing, switching devices, or changing website origin can remove or separate your saved work. Download a backup for portability.
Check the authority
Read the complete opinion and check publication, disposition, later treatment, and applicability. The tool does not verify whether a case is binding or still good law. Exact quotation checks compare your quote to text you supplied, not an authenticated court copy. A saved preview is not evidence of a holding.
Open source
Download the MIT-licensed source, tests, and Python CLI. No personal research or case corpus is bundled. About CourtListener’s public feeds.