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Free swagger.io Alternatives

The best free alternative to swagger.io is Doxygen, which is also Open Source. If that doesn't suit you, our users have ranked more than 10 alternatives to swagger.io and many of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to swagger.io are Slate API Docs Generator, ReDoc, RAML and Aglio.

This page was last updated Apr 21, 2022
  • FreeOpen Source
  • Mac
  • Windows
  • Linux
  • Online
  • Node.JS

Swagger is an open source RESTapi Documentation Tool.

Learn more about swagger.io

  1. Doxygen

    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Haiku

    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.

  2. Slate API Docs Generator

    • FreeOpen Source
    • Mac
    • Linux
    • Self-Hosted

    Create beautiful, intelligent, responsive API documentation.



  3. ReDoc

    • FreeOpen Source
    • Online
    • Self-Hosted

    OpenAPI/Swagger-generated API Reference Documentation.

  4. RAML

    • FreeOpen Source
    • Self-Hosted

    RESTful API Modeling Language (RAML) makes it easy to manage the whole API lifecycle from design to sharing. It's concise - you only write what you need to define - and reusable. It is machine readable API design that is actually human friendly.

  5. Aglio

    • FreeOpen Source
    • Self-Hosted

    aglio - An API Blueprint renderer that supports multiple themes and outputs static HTML that can be served by any web host. API Blueprint is a Markdown-based document format that lets you write API descriptions and documentation in a simple and straightforward way.



  6. APIdoc

    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Self-Hosted
    • JavaScript

    Inline Documentation for RESTful web APIs.

  7. SwaggerGo

    • Free PersonalProprietary
    • Online

    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.

    Discontinued

    Seems to be dead. URL is not working, last update on twitter was in 2015.

  8. dAPI

    • FreeOpen Source
    • Self-Hosted

    Node.js/JavaScript Dojo API viewer and static API viewer document generator.

    No screenshots yet
  9. jsondoc

    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Online
    • Spring
    • Maven

    generate Restful api doc for Java application.

    No screenshots yet
  10. ProtoForce

    • Free PersonalProprietary
    • Online
    • Software as a Service (SaaS)

    Building APIs redefined. Speed up development of services, mobile, and web applications with auto-generated client, server, and documentation in many languages. Cut the costs and development time by up to 50%.

Showing 10 of 21 alternatives