Redoc
Redoc is an open-source tool for generating interactive API documentation from OpenAPI (formerly Swagger) specifications. It renders API documentation as a static HTML page with a clean, three-panel layout that includes a navigation sidebar, request/response details, and code samples. It is widely used by developers to create user-friendly, customizable documentation for RESTful APIs.
Developers should use Redoc when they need to create professional, interactive API documentation quickly from OpenAPI specs, especially for internal or public-facing APIs where clarity and ease of use are priorities. It is ideal for projects that require customizable themes, support for complex schemas, and integration into CI/CD pipelines for automated documentation updates.