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DocuAPI is a beautiful multilingual API documentation theme for Hugo. This theme is built on top of the beautiful work of Robert Lord and others on the Slate project (Apache 2 License).

Visit the demo site.

Screenshot DocuAPI Example site


The client library used to build the ToC does not handle Unicode very well. To get around this in Hugo >= 0.62.2, put this in your site config:

      autoHeadingIDType = "github-ascii"

Note: this theme requires Hugo >= 0.56.0 to run. If you want to edit the SCSS styles, you need:

  • The extended Hugo version.
  • PostCSS CLI (run npm install to install requirements)

See the exampleSite and more specific its site configuration for the available options.

Most notable: This theme will use all the (non drafts) pages in the site and build a single-page API documentation. Using weight in the page front matter is the easiest way to control page order.

If you want a different page selection, please provide your own layouts/index.html template.

You can customize the look-and-feel by adding your own CSS variables in assets/scss/docuapi_overrides.scss. See the exampleSite folder for an example.


You can override the layouts by providing some custom partials:

  • partials/hook_head_end.html is inserted right before the head end tag. Useful for additional styles etc.
  • partials/hook_body_end.html which should be clear by its name.
  • partials/hook_left_sidebar_start.html the start of the left sidebar
  • partials/hook_left_sidebar_end.html the end of the left sidebar
  • partials/hook_left_sidebar_logo.html the log img source

The styles and Javascript import are also put in each partial and as such can be overridden if really needed:

  • partials/styles.html
  • partials/js.html
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