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A Hugo theme for Reveal.js that makes authoring and customization a breeze. With it, you can turn any properly-formatted Hugo content into a HTML presentation.

screenshot of reveal-hugo


Using reveal-hugo, presentations with multiple slides can be created with just one markdown file, like so:

title = "How to say hello"

# English


# Français


# Español

Just use --- surrounded by blank lines to split content into different slides.


Visit to see a presentation created with this theme and learn about all of the different functionality available to you.

For a full-length blog post about reveal-hugo, checkout Harness the Power of Static Site Generators to Create Presentations on the blog.


Jump to the exampleSite folder in this repository to see the source code for the above presentation and several more. Here are links to those presentations live:

  • logo-example - Shows how to add a logo to your presentation
  • custom-theme-example - Uses Hugo pipes to compile and use a custom Reveal.js SCSS theme (recommended!)
  • section-example - Very basic example that shows how to create a presentation for a Hugo section
  • plugin-example - Shows how to add additional Reveal.js plugins to your presentation, for example an image gallery
  • template-example - An example of using the slide shortcode with powerful templates
  • bundle-example - An example of creating a presentation from one or more markdown files in a leaf bundle
  • hugo-hl-example - An example of using Hugo's compile-time syntax highlighter
  • highlightjs-linenumbers-example - An example of using the multiline and multi-step capabilities of highlight.js

Starter repository

If you want to start creating a presentation right away, clone the programming-quotes repository and start hacking.


You should be able to complete this section with no prior knowledge of Hugo or Reveal.js. At the end, you'll have a working presentation with instant reloading.

Create your first presentation

To start, install Hugo and create a new Hugo site:

hugo new site my-presentation

Change into the directory of the new site:

cd my-presentation

Initialize a git repository:

git init

Add the reveal-hugo theme as a submodule in the themes directory:

git submodule add themes/reveal-hugo

Open config.toml and add the following contents:

theme = "reveal-hugo"

unsafe = true

baseName = "index"
mediaType = "text/html"
isHTML = true

This tells Hugo to use the reveal-hugo theme and it registers a new output format called "Reveal".

Next, create a file in content/ and add the following:

title = "My presentation"
outputs = ["Reveal"]

# Hello world!

This is my first slide.

Back on the command line, run:

$ hugo server

Navigate to http://localhost:1313/ and you should see your presentation.

New site with reveal-hugo

To add more slides, just add content to or create new markdown files in content/home. Remember that each slide must be separated by --- with blank lines above and below.

# Hello world!

This is my first slide.


# Hello Mars!

This is my second slide.

Cloning an existing repository

If you have an existing repository that was setup with the above steps, you have to pull in the theme submodule after cloning your repository using the following command:

git submodule update --init


The Usage guide is contained in the example presentation that lives in this repository in the exampleSite directory. You can access a live version at

Root vs. section presentations

Here's what the folder structure would look like with one root presentation and one section presentation.

- content
  - home # special section for appending to root presentation
    - # appends to the root presentation
    - # appends to the root presentation
  - # beginning of the root presentation
  - ted-talk
    - # beginning of the ted talk presentation
    - # appends to the ted talk presentation
    - # appends to the ted talk presentation

This will create two presentations, one at / and one at /ted-talk/. The order that slides are appended to each can be controlled by the weight parameter specified in each file's front matter. The slides in will always come first, though you don't have to put any slides in there if you want to.


reveal-hugo comes with a variety of shortcodes that help you take advantage of some very useful Reveal.js features.

fragment shortcode

Wrap any content in the fragment shortcode and it will appear incrementally. Great for bulleted lists where you want one bullet point at a a time to appear.

- {{% fragment %}}One{{% /fragment %}}
- {{% fragment %}}Two{{% /fragment %}}
- {{% fragment %}}Three{{% /fragment %}}

frag shortcode

Like fragment but more terse - content is placed inline in a self-closing shortcode.

- {{< frag c="One" >}}
- {{< frag c="Two" >}}
- {{< frag c="Three" >}}

slide shortcode

The slide shortcode lets you set custom HTML and Reveal.js attributes for each slide - things like id, class, transition, background just to name a few. The names are the same as Reveal.js but without the 'data-' prefix.

Add the shortcode above the slide content, below the --- separator. Do not place content inside of the shortcode.


{{< slide id="hello" background="#FFF" transition="zoom" transition-speed="fast" >}}

# Hello, world!


Here's a list of documented slide attributes from the Reveal.js docs:

  • autoslide
  • state
  • background
  • background-color
  • background-image
  • background-size
  • background-position
  • background-repeat
  • background-video
  • background-video-loop
  • background-video-muted
  • background-interactive
  • background-iframe
  • background-transition
  • transition (can have different in and out transitions)
  • transition-speed
  • notes (can also use the note shortcode)
  • timing

You can also pass through your own, a data- prefix will be added automatically to each one (except for id and class).

section shortcode

To create groups of slides that can be navigated vertically, surround your markdown with the section shortcode.

{{% section %}}

# Vertical slide 1


# Vertical slide 2

{{% /section %}}

note shortcode

Add speaker notes for each slide with the note shortcode.

{{% note %}}
Don't forget to thank the audience.
{{% /note %}}

💡 Tip: you can also add notes by adding a note attribute to the slide shortcode.

markdown shortcode

Markdown surrounded by the markdown shortcode will not be rendered by Hugo but by Reveal.js itself. This is useful if you want to use some native Reveal.js markdown syntax that isn't supported by reveal-hugo.

{{% markdown %}}
# I'm rendered... Reveal.js
{{% /markdown %}}

MathJax support

Add the following to layouts/partials/reveal-hugo/body.html:

MathJax = {
  tex: {
    inlineMath: [['$', '$'], ['\\(', '\\)']]
  svg: {
    fontCache: 'global'

<script type="text/javascript" id="MathJax-script" async

Then you can do this in a slide:

## Cool equations

Displayed equations are wrapped in double-\$

$$\frac{n!}{k!(n-k)!} = \binom{n}{k}$$  

Inline equations like $E=mc^2$ are wrapped in single-\$

HTML slides

If you need to create fancier HTML for a slide than you can do with markdown, just add data-noprocess to the <section> element.

<section data-noprocess>
  <h1>Hello, world!</h1>

Reusable slides and sections

Sometimes you need to reuse a slide in the same presentation or across different presentations. reveal-hugo makes use of Hugo data templates to make both cases easy.

To create reusable slides, create a TOML (or JSON or YAML) file in your site's data directory. Give it a name that reflects its content or just slides.toml. In that file, add a key for each reusable slide. The name should reflect the slide's content and the value should be the slide's markdown.

thankyou = '''

# Thank you!

Any questions?


💡 Tip: TOML's multiline string syntax comes in handy here, note the '''.

Each key can contain one or more slides separated by --- and newlines. That way you can create reusable sections.

thankyou = '''

# Thank you!


Any questions?


To render a slide from a data template, use the slide shortcode with a content attribute:

{{% slide content="slides.thankyou" /%}}

The part before the "." is the name of the file in the data directory. The part after the dot is the key to look up in that file.

You can use all the additional slide shortcode attributes. They will be applied to every slide in the data template.


Customize the Reveal.js presentation by setting these values in config.toml or the front matter of any presentation's file.

  • reveal_hugo.theme: The Reveal.js theme used; defaults to "black"
  • reveal_hugo.custom_theme: The path to a locally hosted Reveal.js theme in the static or assets folder
  • reveal_hugo.custom_theme_compile: If set to true, the theme will be compiled with Hugo pipes (and must live in the assets folder)
  • reveal_hugo.custom_theme_options: Provide a dictionary to customize theme compilation, see Hugo's SCSS docs for a list of options
  • reveal_hugo.highlight_theme: The highlight.js theme used; defaults to "default"
  • reveal_hugo.reveal_cdn: The location to load Reveal.js files from; defaults to the reveal-js folder in the static directory to support offline development. To load from a CDN instead, set this value to or whatever CDN you prefer.
  • reveal_hugo.highlight_cdn: The location to load highlight.js files from; defaults to to the highlight-js folder in the static directory to support offline development. To load from a CDN instead, set this value to or whatever CDN you prefer.
  • reveal_hugo.load_default_plugins: If set to true (default), the plugins included by default are loaded. These are markdown, highlight.js, notes and zoom.
  • reveal_hugo.plugins: An array of additional Reveal.js plugins to load, e.g. ["plugin/gallery/gallery.plugin.js"]. The appropriate files will need to have been copied into the static directory. CDN loading is not supported. See here for a big list of plugins you can try.

This is how parameters will look in your config.toml:

theme = "moon"

Or in the front matter of an file:

theme = "moon"

Include any other attributes in those sections that you'd like to be fed as arguments to Reveal.initialize in snakecase, so slide_number instead of slideNumber. Params are converted from snakecase to camelcase before passing to Reveal.js. This is necessary to maintain the proper case of the parameters.

Here's an example of configuring Reveal.js parameters alongside a theme and highlight.js theme:

theme = "moon"
highlight_theme = "solarized-dark"
slide_number = true
transition = "zoom"

See the extensive list of Reveal.js configuration options here.

Syntax highlighting

Syntax highlighting can be done with Hugo at compile-time or using Reveal.js with the pre-installed highlight.js plugin. Presentations can use both if they wish for different pieces of code.

To do highlighting with Hugo, use the highlight shortcode and check out the hugo-hl-example example presentation.

To see an example of highlighting with Reveal.js, checs out the highlightjs-linenumbers-example presentation.

By default, markdown code fences will be processed with Hugo. To turn that off, add this to your config.toml file:

codeFences = false

Now, the code in the fences will be highlighted by highlight.js instead.

Custom Reveal.js themes

If you have a custom reveal theme to use (in .css form), place it in the static folder and specify it in the configuration. For example, if your css file lives here:

| static
  | stylesheets
    - custom-theme.css

Then this is what you'll put in config.toml:

custom_theme = "stylesheets/custom-theme.css"

Compiling a custom Reveal.js theme with Hugo pipes

Reveal.js theme customization is easiest to do by overriding variables in the SCSS or PostCSS build process. You can take advantage of Hugo pipes to do the theme compilation. In this case, your SCSS, Saas or PostCSS file needs to live in assets:

| assets
  | stylesheets
    - custom-theme.scss

If you just wanted to change the presentation colors, here's what you might put in custom-theme.scss:

@import "../reveal-js/css/theme/template/mixins";
@import "../reveal-js/css/theme/template/settings";

$backgroundColor: rgb(3, 129, 45);
$mainColor: #fff;
$headingColor: #fff;

To learn more about Reveal.js theme customization, check out the Reveal.js theme docs.

This is what the front matter would look like:

custom_theme = "stylesheets/custom-theme.scss"
custom_theme_compile = true

You can also add options that will be passed to Hugo's toCSS method:

targetPath = "css/custom-theme.css"
enableSourceMap = true

Check out the custom-theme-example presentation to see a working example.

Adding HTML to the layout

If you need to add something to the HTML layout, you can create partials that live at specific locations, depending on which presentation you want to customize and where you want the HTML inserted into the page.

Presentation Before </head> Before </body> Before closing </div> of div.reveal
All reveal-hugo/head.html reveal-hugo/body.html reveal-hugo/end.html
Root home/reveal-hugo/head.html home/reveal-hugo/body.html home/reveal-hugo/end.html
Section {section}/reveal-hugo/head.html {section}/reveal-hugo/body.html {section}/reveal-hugo/end.html

This is the recommended way to add custom CSS and JavaScript to each presentation.

💡 Tip: In Hugo, partials live in the layouts folder:

For example, if you have HTML that is to be placed before every presentation, this would be the structure:

- layouts
  - partials
    - reveal-hugo
      - head.html
      - body.html
      - end.html

Offline development

Offline-friendly development is the default. The Reveal.js and Highlight.js files are loaded from the static directory by default. (See above for how to use a CDN instead). If you need file:/// URLs to work, make sure to set relativeURLs and uglyURLs in your config.toml.

relativeURLs = true
uglyURLs = true

Note: uglyURLs isn't strictly required, but it is useful if you're loading against the filesystem as it makes sure that all URLs end in .html and links point directly at them instead of to a folder.


Add a Reveal.js presentation to an existing Hugo site

If your Hugo site already has a theme but you'd like to create a presentation from some of its content, that's very easy. First, manually copy a few files out of this theme into a few of your site's directories:

cd my-hugo-site
git clone themes/reveal-hugo
cd themes/reveal-hugo
cp -r layouts static ../../

Files and directories are named such that they shouldn't conflict with your existing content. Of course, you should double check before copying, especially the shortcodes which can't be put under a directory.

Next, add the Reveal output format to your site's config.toml file

baseName = "index"
mediaType = "text/html"
isHTML = true

Now you can add outputs = ["Reveal"] to the front matter of any section's file and that section's content will be combined into a presentation and written to index.html. If you already have a index.html page for that section, just change the baseName above to reveal and the presentation will be placed in a reveal.html file instead.

Note: If you specify outputs = ["Reveal"] for a single content file, you can prevent anything being generated for that file. This is handy if you other default layouts that would have created a regular HTML file from it. Only the list file is required for the presentation.

Tip: As of Hugo 0.42, Hugo has theme inheritence. You can avoid the file copying step above by adding "reveal-hugo" to your site's array of themes.

Create a presentation from a leaf bundle or single page type

By default, reveal-hugo doesn't create presentations for single pages (i.e. pages other than as it assumes those pages are pieces of a larger presentation in the section starting with This might not be the case if your content is structured in a leaf bundle (the main file is then with no underscore, which Hugo treats as a single page) or if you just want to put a presentation in a single file, say In these cases, you just need to tell Hugo to use a different layout.

If you're using a leaf page bundle, set the following in the front matter of the file:

layout = "bundle"

If you're in a single page file like, set the following in the front matter:

layout = "list"

Create a page that lists out all presentations

See this issue for a template that you can use.

Reveal.js tips

These are some useful Reveal.js features and shortcuts.

  • 's' - type 's' to enter speaker mode, which opens a separate window with a time and speaker notes
  • 'o' - type 'o' to enter overview mode and scroll through slide thumbnails
  • 'f' - type 'f' to go into full-screen mode

Here are a few useful Reveal.js-related tools:

Find many more on the Reveal.js wiki: Plugins, tools and hardware.


Have you built something with reveal-hugo? Add a link to it here.


  • 2018-08-03: The slide shortcode is now easier to use. An auto-closing version sits inside the slide instead of needing to surround its content and add a closing tag.


Contributions are very welcome. See for more details.