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Swagger

Swagger

coding / ProgrammingDevOpsAPIs & Integrations
FreemiumWeb
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Verified working Oct 7, 2026

OpenAPI-focused tools for designing, documenting, and testing APIs.

Swagger is a suite of API development tools from SmartBear built around OpenAPI, AsyncAPI, and JSON Schema. It includes open-source tools for editing specs, generating code, and rendering interactive API documentation, plus commercial products for team collaboration, governance, testing, catalogs, and enterprise standardization.

Why it stands out

  • Deeply tied to the OpenAPI ecosystem, with widely used open-source projects as well as paid team products.
  • Covers more of the API lifecycle than documentation-only tools, including design, testing, catalogs, and governance.
  • Supports both OpenAPI and AsyncAPI, making it relevant for REST-style and event-driven API work.
  • Enterprise features focus on consistency at scale through projects, reusable domains, style checks, and role-based collaboration.

Good to know

  • Advanced collaboration, governance, catalog, and enterprise standardization features are part of the commercial Swagger products, not just the open-source tools.
  • The toolset is centered on specification-driven API workflows, so teams without OpenAPI, AsyncAPI, or JSON Schema practices may need to adopt that model first.
  • Swagger is broad enough that users may need to choose among multiple products rather than a single all-in-one tool.

Under the radar: If you only need to validate a spec or publish interactive docs, start with the open-source Swagger Editor and Swagger UI before evaluating the paid team and enterprise products.

Photos

Illustration for Swagger