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YARD

Free#23 of 38 in Documentation Generators

YARD: A focused open-source choice for Ruby API docs, coverage checks, and code graphs. Ranked #23 of 38 in Documentation Generators by our editors (7.0/10); pricing: Free plan; best for ruby documentation with coverage and graphs.

7.0/10Editor score

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At a glance

Editor score
7.0 / 10
Pricing
Free plan
Best for
Ruby documentation with coverage and graphs
Free plan
Yes
Paid from
Free
Source inputs
Ruby, RDoc, Markdown
Facts checked
20 Sep 2026

Where it wins
- Generates Ruby API documentation with RDoc and Markdown support
- Adds structured tags, coverage checks, search, and live reload
- Supports templates, plugins, Graphviz graphs, and Rake integration
Where it doesn't
- Focused on Ruby rather than multi-language documentation
- Listed output formats are HTML and YAML
- Custom formats require processing the raw data output

Our verdict on YARD

YARD is an open-source documentation generator for Ruby codebases and gems. It parses Ruby source and documentation comments, supports RDoc and Markdown markup, and produces project or gem documentation. Ruby developers and project maintainers can use it to build API references with structured metadata for parameters, return types, exceptions, and deprecations. It is distributed as a Ruby gem and includes a free plan through its open-source model.

The feature set goes beyond basic comment rendering. YARD provides documentation statistics and coverage checks, helping teams review how thoroughly code is documented. Its local documentation server includes search and live reload, which supports an iterative documentation workflow. Custom templates and plugin extensions provide ways to adapt the presentation or extend the generator, while raw data output supports custom processing. Rake integration also fits Ruby projects that already automate development tasks through Rake.

For code navigation, YARD can generate class and module graphs using Graphviz, adding a visual view of relationships within a Ruby codebase. The published category specifications identify Ruby as its language support and HTML and YAML as its output formats. That focus makes YARD a strong fit for Ruby libraries, gems, and applications that need structured API documentation, coverage visibility, and graph-based reference material. Teams seeking documentation generation across several programming languages, or output centered on formats beyond HTML and YAML, should choose a different tool.

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

YARD pricing

Plans Free planFree Free to use — no paid tier required for the core job.

See plans on yardoc.org

YARD fact sheet

Free plan	Yes
Paid from	Free
Source inputs	Ruby, RDoc, Markdown
API reference generation	Yes
Versioned documentation	Not verified
CI/CD integration	Not verified
Output formats	HTML, YAML
Programming languages	Ruby
Deployment	Self-hosted
Support	Community, Docs
Built for	Solo, Small business (editorial estimate)
Integrations	3 integrations: Rake, Graphviz, RSpec
Pricing	Free plan
Website	yardoc.org
Facts checked	20 Sep 2026

YARD integrations

YARD lists 3 integrations on its own site.

Rake
Graphviz
RSpec

Alternatives to YARD

See all YARD alternatives →

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The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used YARD for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.

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Featured on iTechGuides

YARD 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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Last updated 7 Oct 2026 · How we research and update