joi-to-swagger

Converts Joi validation schemas into OpenAPI 3.0 schema definitions. Stable version 6.2.0, maintained on npm, with TypeScript definitions included. Key differentiator: directly maps Joi constraints (min, max, pattern, enum, nullable, etc.) to OpenAPI properties and supports `ref` components via a second argument. Requires Joi >=17.1.1 as a peer dependency. Alternative to manual OpenAPI schema authoring, useful for API documentation generators and validators that reuse existing Joi definitions.