REST Assured vs Swagger

REST Assured and Swagger are both listed under APIs in the DevPages directory. This page puts the details we hold for each of them side by side.

It does not score them and does not pick a winner. Fields the catalog has no value for say “Not recorded” rather than being filled in with a guess.

REST Assured, Swagger compared field by field. Values are taken from the DevPages catalog; fields we hold no value for read “Not recorded”.
	REST Assured	Swagger
Category	APIs	APIs
Pricing model	Open Source	Freemium
Open source	Yes	Yes
GitHub stars	7.1K	29.1K
Key features	Behavior-driven development style Support for various authentication methods JSON and XML path expressions Request and response specifications Integration with testing frameworks Extensive matcher library File upload and download support Custom serialization and deserialization	OpenAPI Specification standard Interactive API documentation API design and modeling tools Code generation for multiple languages API testing and validation Mock server generation API lifecycle management Team collaboration features
Use cases	REST API automated testing Integration testing Behavior-driven development Continuous integration testing API contract testing End-to-end testing Microservices testing Quality assurance automation	API documentation and specification API-first development approach Team collaboration on API design Client SDK generation API testing and validation Developer portal creation API governance and standards Legacy API documentation
Integrations	JUnit TestNG Maven Gradle Jenkins Spring Boot	Postman Insomnia Spring Boot Express FastAPI ASP.NET
Tags	java testing rest-api bdd automation junit	api documentation openapi specification rest
Links	Website (opens in a new tab) GitHub (opens in a new tab) Docs (opens in a new tab)	Website (opens in a new tab) GitHub (opens in a new tab) Docs (opens in a new tab)

What each one is

REST Assured

Java library for testing REST services with behavior-driven development

REST Assured is a Java library that provides a domain-specific language (DSL) for writing powerful, maintainable tests for REST services. It supports various authentication schemes, has excellent integration with existing Java-based testing frameworks, and simplifies testing of REST APIs.

Full REST Assured listing

Swagger

API documentation and design tools

Swagger is a suite of tools for API developers that includes OpenAPI Specification (formerly Swagger Specification), Swagger UI for interactive documentation, and various tools for API design, building, and testing. It's the most popular framework for designing and documenting REST APIs.

Full Swagger listing

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