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Swagger

Developer Tools

3.8(45 ratings)

API design, documentation, and testing tools built on OpenAPI

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About Swagger

Best for developers and teams designing and documenting REST APIs.

Swagger is a comprehensive suite of open-source and commercial tools built around the OpenAPI Specification for designing, building, documenting, and consuming RESTful APIs. It provides developers with an interactive editor for writing API definitions, an auto-generated UI for exploring and testing endpoints, and a collaborative platform (SwaggerHub) for teams working on API development at scale. Originally created by Tony Tam and later acquired by SmartBear Software, Swagger essentially established the standard for how modern APIs are described and documented. It's used by individual developers, startups, and large enterprises alike who need consistent, machine-readable API specifications that drive code generation, documentation, and testing workflows.

Pros

Industry-standard OpenAPI specification widely adopted everywhere
Open-source core tools with active community support
Interactive API documentation generated automatically from specs
Powerful code generation for clients and servers
SwaggerHub enables team collaboration on API design

Cons

SwaggerHub commercial pricing can be expensive for teams
Learning OpenAPI specification syntax takes initial effort
UI customization options are somewhat limited out-of-box
Complex API schemas can become unwieldy to manage

Use Cases

Best for designing and documenting RESTful APIs using OpenAPI specification

Best for generating interactive API documentation for internal and external developers

Best for auto-generating server stubs and client SDKs in multiple languages

Best for teams collaborating on API-first development workflows at scale

Key Features

10 features

Swagger Editor

Swagger UI

OpenAPI specification

API design-first approach

Interactive documentation

Code generation

API mocking

Collaboration tools

SwaggerHub hosting

Version management

SaasHunter Score

7.8/10

“Your development team focuses on API design and documentation, willing to invest for comprehensive features.”

Ease of Use

7.0

Features

8.0

Pricing

8.0

Support

7.0

Integrations

9.0

Best For

Enterprise 9Startups 8Freelancers 8Agencies 7Small Business 7

Integrations

GitHubGitLabBitbucketAWS API GatewayAzure DevOpsPostmanJenkinsDocker

API Documentation OpenAPI Testing Design API Tools Api Development Tools

Frequently Asked Questions

What is Swagger?

Swagger is a set of tools for designing, documenting, and testing RESTful APIs built on the OpenAPI Specification. It includes open-source tools like Swagger Editor and Swagger UI, plus the commercial SwaggerHub collaboration platform.

How much does Swagger cost?

Swagger's core open-source tools (Editor, UI, Codegen) are completely free. SwaggerHub offers a free tier for individual use, with paid team plans starting around $90 per user per month for advanced collaboration and governance features.

What are the main features of Swagger?

Key features include a browser-based API definition editor, auto-generated interactive documentation, server and client code generation in 40+ languages, API mocking, and team collaboration with version control through SwaggerHub.

Who should use Swagger?

Swagger is ideal for backend developers, API architects, and development teams who build or consume REST APIs. It's particularly valuable for organizations adopting an API-first design approach or needing standardized API documentation.

Is there a free plan for Swagger?

Yes, the core Swagger tools (Swagger Editor, Swagger UI, and Swagger Codegen) are fully open-source and free. SwaggerHub also offers a free plan for individual developers with limited features and one user.