swagger.io is described as 'Swagger is an open source RESTapi Documentation Tool' and is a documentation generator in the development category. There are more than 10 alternatives to swagger.io for a variety of platforms, including Web-based, Mac, Linux, Windows and SaaS apps. The best swagger.io alternative is Doxygen, which is both free and Open Source. Other great apps like swagger.io are ArdorQuery, Treblle, Slate API Docs Generator and Redocly.
Doxygen is a tool for generating documentation from annotated C++ sources, as well as other popular programming languages like C, Objective-C, C#, PHP, Java, Python, IDL (CORBA, Microsoft, and UNO/OpenOffice flavors), Fortran, VHDL, Tcl, and to some extent D.
Doxygen is the most popular Windows, Mac & Linux alternative to swagger.io.
Doxygen is the most popular Open Source & free alternative to swagger.io.
ArdorQuery is a cross-platform tool for performing any HTTP(S) endpoints like REST API, HTML, Images, GraphQL, OData etc.
Treblle is a federated API Intelligence platform delivering full API visibility, security, and control from one integration point.
Treblle is the most popular Web-based, Android, iPhone, iPad, SaaS & Android Tablet alternative to swagger.io.
Create beautiful, intelligent, responsive API documentation.
Slate API Docs Generator is the most popular Self-Hosted alternative to swagger.io.
API Tester is the first mobile app to test any type of API on the go. Test REST, GraphQL, WebSocket, SOAP, JSON RPC, XML, HTTP, and HTTPS APIs completely for free, on iOS or Android.
This tool generates document for Restful Api from SpringMVC test, assembling asciidoc.
Apiary is the most popular commercial alternative to swagger.io.
Magidoc is a free open source software that can help you generate reference documentation for any GraphQL API.
The simple way for share your interactive API documentation.
SwaggerGo! is a zero configuration tool based on Swagger UI. Automatic CORS support, you don't need to change anything in your server configuration.
Bump.sh helps you build a branded single source of truth, cataloging all your APIs. We’ve created the reference point for developers and product managers consuming and building APIs, no matter which technology they rely on (OpenAPI, AsyncAPI, and more soon).
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