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AsyncAPI Generator vs RAML2HTML

Both stand on api docs. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

AsyncAPI Generator

Free plan LinuxSelf-hosted

AsyncAPI Generator offers a free way to create API-related documentation and code from documents and templates, with scope shaped by the selected template. Its built-in templates carry a production-use caveat, so teams may need to create or extend templates.

Visit AsyncAPI Generator

RAML2HTML

Free plan LinuxSelf-hosted

Choose RAML2HTML if you need a free, self-hosted way to render RAML documentation and value command-line or library use. Look elsewhere if you need the generator itself to parse RAML, or if you need RAML support outside the version ranges described.

Visit RAML2HTML

The facts

AsyncAPI GeneratorRAML2HTML
Free planYesYes
Open sourceNot publishedNot published
Runs onLinux, Self-hostedLinux, Self-hosted
Lowest paid planFree or on requestFree or on request
Plans published11
MakerNot publishedNot published
Websiteasyncapi.comgithub.com
On api docs#5 of 19#9 of 19

AsyncAPI Generator: what it does well

  • Generates documentation, code, diagrams, and other defined outputs.
  • Supports custom templates and extensions to existing templates.
  • Can scaffold API provider project structure and handler files.
  • Offers npm and Docker installation options.
  • Can be integrated into CI/CD pipelines.

What to know first

  • Baked-in templates are experimental and limited in number.
  • Built-in templates are not recommended for production use.
  • Requires Node.js v18.12.0 or higher and npm v8.19.0 or higher.

RAML2HTML: what it does well

  • Offers command-line rendering and library use.
  • Accepts filenames, URLs, or parsed RAML objects as input.
  • Supports custom Nunjucks templates and themes.
  • Rendering configuration can customize processing and HTML output.
  • MIT-licensed and free.

What to know first

  • Does not parse RAML definitions itself.
  • RAML 1.0 support requires version 4 or later.
  • RAML 0.8 support is available in version 3.x.

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