No. 22 of 28 ·API Documentation Tools

Swagger2Markup

Self-hosted · API

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Freedom report

No signalScore 5.1

Free tierNo free tier on record
Open codeNo open-source code on record
Runs widely0 of 6 device platforms
DocumentedThinly documented

Swagger2Markup is ranked #22 of 28 in API documentation tools on Freedom251. It runs on API, Self-hosted.

Compared on API documentation tools

OpenAPI import: Yes
Interactive API reference: No
Code samples: Yes
Hosting model: self_hosted

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The record

Purpose: Swagger2Markup combines hand-written material with generated API documentation to produce REST API guides.
Input and output: It converts Swagger JSON or YAML into AsciiDoc, GitHub Flavored Markdown, or Atlassian Confluence Wiki documents.
Input location: The Swagger source file can be local or accessible remotely over HTTP.
Conversion options: The converter can write output to a folder, write a single file, or return documentation as a string.
Integrations: The documentation describes use with Swagger JAX-RS, Springfox, Spring REST Docs, and Gradle or Maven plugins.
Customization: It provides extension points for overview, paths, security, and definitions documents, and for modifying the Swagger model before conversion.
Generated documentation: By default, it generates four AsciiDoc files for overview, paths, security, and definitions, and can instead produce one file or a string.
Formats: The documentation says AsciiDoc output can be converted to HTML, PDF, and EPUB using Asciidoctor tools.
Compatibility limit: The project README says it supports Swagger 1.2 and 2.0 specifications and requires at least JDK 8.
Maintenance: The README says the maintainer can no longer maintain the project alone and lists Swagger v3 support and bug fixes among topics needing help.
License: The project is licensed under Apache License 2.0.
Support: The README directs users to Gitter for questions and invites bug reports through GitHub issues and enhancements through pull requests.

Where it ranks on Freedom251

Best API Documentation Tools in 2026#22 of 28

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Sources

github.com/swagger2markup/swagger2markup· checked 4 Oct 2026
swagger2markup.github.io/swagger2markup/1.3.3/· checked 4 Oct 2026