The World's Most Popular API Tooling
Swagger is the world’s largest framework of API developer tools for the OpenAPI Specification(OAS), enabling development across the entire API lifecycle, from design and documentation, to test and deployment.
The World's Most Popular Framework for APIs.
Swagger is the world’s largest framework of API developer tools for the OpenAPI Specification(OAS), enabling development across the entire API lifecycle, from design and documentation, to test and deployment.
Design new APIs, or edit existing ones, in a powerful editor which visually renders your OAS/Swagger definition with concise, real time feedback and error handling.
Learn MoreQuickly build APIs by turning your OAS/Swagger definition into code, generating server stubs and client libraries in over 40 different languages, allowing for development and prototyping.
Learn MoreVisualize your API's resources from its OAS/Swagger definition and generate beautiful, interactive documentation that can be hosted in any environment, allowing your end consumers to easily get started with your API.
Learn MoreSwaggerHub is the integrated API design and documentation platform for the OAS, built for teams to drive consistency and discipline across the API development workflow.
Sign up freeAt the heart of the above tools is the OpenAPI Specification (formerly called the Swagger Specification). The specification creates the RESTful contract for your API, detailing all of its resources and operations in a human and machine readable format for easy development, discovery, and integration.
Streamline your API's build process by keeping its design, documentation, and implementation synchronized and updated automatically
Develop APIs in the technology stack of your choice with client libraries and server templates in every popular language
Use the accepted standard for describing RESTful APIs, adopted by millions of developers and companies
We foster the world’s biggest, open and friendly community of API enthusiasts. Come join the discussion!
Get the latest news and updates from the Swagger Team
No one knows APls better than SmartBear. As the makers of Swagger and SoapUI, we're trusted by millions of API teams to ensure API quality in every step of the API delivery lifecycle - from design to deployment. We've been helping API development and testing teams build exceptional APls for over 10 years.