KnowJudges is a free online directory of U.S. judges and courts, designed to help the public, researchers, and professionals find and verify judicial information. Its registry lists 31,464 judges and 9,543 courts, with search options by judge, court, or ZIP code. Judge profiles bring together source-linked information on careers, education, service history, court assignments, federal caseloads, trends, and benchmarks, so users can consult the underlying sources rather than rely on unverified claims.

The site also offers court intelligence and case analytics, including information on cases involving artificial intelligence in court proceedings and tools for comparing immigration judges’ asylum outcomes and decision volumes against judge, court, and national benchmarks. Visitors can search public federal dockets or request help locating court records, and interactive maps show federal and state courts across U.S. jurisdictions. KnowJudges provides free API and MCP access, enabling structured, source-linked judge data to be used in applications and AI workflows. The service also publishes terms of use, privacy and data licensing information, and channels for corrections and contact.