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AsyncAPI Generator

Free#22 of 38 in Documentation GeneratorsApi Docs

AsyncAPI Generator: A flexible open-source generator for AsyncAPI documentation and client code. Ranked #22 of 38 in Documentation Generators by our editors (7.1/10); pricing: Open source; best for asyncAPI-driven docs and code generation.

7.1/10Editor score
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AsyncAPI Generator7.1 Visit site

At a glance

  • Editor score
    7.1 / 10
  • Pricing
    Open source
  • Best for
    AsyncAPI-driven docs and code generation
  • Paid from
    Free
  • Source inputs
    AsyncAPI Document; templates
  • Facts checked
    20 Sep 2026
AsyncAPI Generator screenshot

  • Where it wins

    • Generates HTML, Markdown, PDF, client libraries, and boilerplate
    • Supports official or custom templates with parameters and hooks
    • Runs via CLI, Node.js, Docker, and CI/CD workflows

  • Where it doesn't

    • Requires AsyncAPI documents and templates as generation inputs
    • Output depth depends on the templates selected or created
    • Open-source model has no paid tiers for commercial support or plans

Our verdict on AsyncAPI Generator

AsyncAPI Generator is an open-source, template-driven tool for teams that maintain AsyncAPI documents and need repeatable documentation or code outputs. It can generate HTML and Markdown documentation, client libraries, boilerplate code, and other artifacts. Available template ecosystems cover Node.js, Java, Python, TypeScript, Go, .NET, and PHP, while the category specification also lists PDF among supported output formats. The tool is available through the AsyncAPI CLI or as a Node.js library, and it can run locally, in Docker, or in CI/CD workflows.

Its main strength is the combination of standard templates and customization. Teams can install templates from npm, Git repositories, tarballs, URLs, or folders, then adjust generation with template parameters and hooks. That makes the product suitable for organizations that want documentation and client-code production to follow a shared AsyncAPI source rather than being maintained separately. The published capabilities also include an API reference and CI/CD integration, so generated artifacts can fit into an automated documentation or delivery process. The trade-off is that the generator depends on AsyncAPI documents and templates; the selected template determines the practical output and language coverage.

AsyncAPI Generator fits teams seeking a source-driven workflow across documentation and client-library generation, especially where custom templates or automated generation matter. Its open-source model avoids a paid-plan structure, but the product is centered on generation rather than a broader hosted documentation workspace. Choose it when your workflow already uses AsyncAPI and can accommodate template-based configuration, CLI or Node.js execution, and automation. An alternative may be more suitable for teams seeking a general-purpose documentation product that does not depend on AsyncAPI files and templates as its core inputs.

Your product? Our editors can test AsyncAPI Generator in depth and publish a review, labelled as paid · from $149/mo →

AsyncAPI Generator pricing

Plans Open sourceFree Free to use — no paid tier required for the core job.
See plans on asyncapi.com

AsyncAPI Generator fact sheet

Free planNot verified
Paid fromFree
Source inputsAsyncAPI Document; templates
API reference generationYes
Versioned documentationNot verified
CI/CD integrationYes
Output formatsHTML; Markdown; PDF
Programming languagesJavaScript; Java; Python; TypeScript; Go; C#; PHP
DeploymentSelf-hosted
SupportDocs, Community
Built forSolo, Small business, Mid-market, Enterprise (editorial estimate)
PricingOpen source
Websiteasyncapi.com
Facts checked20 Sep 2026

Alternatives to AsyncAPI Generator

See all AsyncAPI Generator alternatives →

Also Ranked In

AsyncAPI Generator is ranked in 2 of our directories.

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Featured on iTechGuides

Featured on iTechGuides — AsyncAPI Generator 7.1/10

AsyncAPI Generator is listed in our Documentation Generators directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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