Postman is a collaboration platform for API development used by millions of developers.
Free with paid plans available
Best swagger.io Alternatives ranked by AI · updated May 2025
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Swagger is a set of open-source tools built around the OpenAPI Specification that can help you design, build, document, and consume RESTful web services.
Price: Free and paid plans available
🎯 swagger.io
Top 6 swagger.io alternatives
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Insomnia is a powerful API client with advanced features for designing and testing APIs.
Pros
- Intuitive interface
- Supports GraphQL and OAuth
Cons
- Less comprehensive API design features compared to StopLight
Free with paid plans starting at $10 per month
StopLight is a platform that helps organizations design, test, and document their APIs with ease.
Starting at $59 per month
ReadMe is a documentation platform that helps companies build beautiful, personalized, and interactive developer hubs.
Starting from $120/month
Apiary is a collaborative design platform for APIs, providing tools for API design, documentation, and testing.
Free with paid plans available
soapUI is a popular open-source API testing tool that allows users to test SOAP and REST APIs.
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