Shortcodes
What a shortcode is
Hugo loves Markdown because of its simple content format, but there are times when Markdown falls short. Often, content authors are forced to add raw HTML (e.g., video <iframe>
’s) to Markdown content. We think this contradicts the beautiful simplicity of Markdown’s syntax.
Hugo created shortcodes to circumvent these limitations.
A shortcode is a simple snippet inside a content file that Hugo will render using a predefined template. Note that shortcodes will not work in template files. If you need the type of drop-in functionality that shortcodes provide but in a template, you most likely want a partial template instead.
In addition to cleaner Markdown, shortcodes can be updated any time to reflect new classes, techniques, or standards. At the point of site generation, Hugo shortcodes will easily merge in your changes. You avoid a possibly complicated search and replace operation.
Use shortcodes
In your content files, a shortcode can be called by calling {{% shortcodename parameters %}}
. Shortcode parameters are space delimited, and parameters with internal spaces can be quoted.
The first word in the shortcode declaration is always the name of the shortcode. Parameters follow the name. Depending upon how the shortcode is defined, the parameters may be named, positional, or both, although you can’t mix parameter types in a single call. The format for named parameters models that of HTML with the format name="value"
.
Some shortcodes use or require closing shortcodes. Again like HTML, the opening and closing shortcodes match (name only) with the closing declaration, which is prepended with a slash.
Here are two examples of paired shortcodes:
{{% mdshortcode %}}Stuff to `process` in the *center*.{{% /mdshortcode %}}
{{< highlight go >}} A bunch of code here {{< /highlight >}}
The examples above use two different delimiters, the difference being the %
character in the first and the <>
characters in the second.
Shortcodes with raw string parameters
You can pass multiple lines as parameters to a shortcode by using raw string literals:
{{< myshortcode `This is some <b>HTML</b>,
and a new line with a "quoted string".` >}}
Shortcodes with Markdown
Shortcodes using the %
as the outer-most delimiter will be fully rendered when sent to the content renderer. This means that the rendered output from a shortcode can be part of the page’s table of contents, footnotes, etc.
Shortcodes without Markdown
The <
character indicates that the shortcode’s inner content does not need further rendering. Often shortcodes without Markdown include internal HTML:
{{< myshortcode >}}<p>Hello <strong>World!</strong></p>{{< /myshortcode >}}
Nested shortcodes
You can call shortcodes within other shortcodes by creating your own templates that leverage the .Parent
method. .Parent
allows you to check the context in which the shortcode is being called. See Shortcode templates.
Embedded shortcodes
Use these embedded shortcodes as needed.
figure
The figure
shortcode can use the following named parameters:
- src
- URL of the image to be displayed.
- link
- If the image needs to be hyperlinked, URL of the destination.
- target
- Optional
target
attribute for the URL iflink
parameter is set. - rel
- Optional
rel
attribute for the URL iflink
parameter is set. - alt
- Alternate text for the image if the image cannot be displayed.
- title
- Image title.
- caption
- Image caption. Markdown within the value of
caption
will be rendered. - class
class
attribute of the HTMLfigure
tag.- height
height
attribute of the image.- width
width
attribute of the image.- loading
loading
attribute of the image.- attr
- Image attribution text. Markdown within the value of
attr
will be rendered. - attrlink
- If the attribution text needs to be hyperlinked, URL of the destination.
Example usage:
{{< figure src="elephant.jpg" title="An elephant at sunset" >}}
Rendered:
<figure>
<img src="elephant.jpg">
<figcaption><h4>An elephant at sunset</h4></figcaption>
</figure>
gist
To display a GitHub gist with this URL:
https://gist.github.com/user/50a7482715eac222e230d1e64dd9a89b
Include this in your Markdown:
{{< gist user 50a7482715eac222e230d1e64dd9a89b >}}
This will display all files in the gist alphabetically by file name.
To display a specific file within the gist:
{{< gist user 23932424365401ffa5e9d9810102a477 list.html >}}
Rendered:
highlight
To display a highlighted code sample:
{{< highlight go-html-template >}}
{{ range .Pages }}
<h2><a href="{{ .RelPermalink }}">{{ .LinkTitle }}</a></h2>
{{ end }}
{{< /highlight >}}
Rendered:
{{ range .Pages }}
<h2><a href="{{ .RelPermalink }}">{{ .LinkTitle }}</a></h2>
{{ end }}
To specify one or more highlighting options, include a quotation-encapsulated, comma-separated list:
{{< highlight go-html-template "lineNos=inline, lineNoStart=42" >}}
{{ range .Pages }}
<h2><a href="{{ .RelPermalink }}">{{ .LinkTitle }}</a></h2>
{{ end }}
{{< /highlight >}}
Rendered:
42{{ range .Pages }}
43 <h2><a href="{{ .RelPermalink }}">{{ .LinkTitle }}</a></h2>
44{{ end }}
To display an Instagram post with this URL:
https://www.instagram.com/p/CxOWiQNP2MO/
Include this in your Markdown:
{{< instagram CxOWiQNP2MO >}}
Rendered:
param
The param
shortcode renders a parameter from the page’s front matter, falling back to a site parameter of the same name. The shortcode throws an error if the parameter does not exist.
Example usage:
{{< param testparam >}}
Access nested values by chaining the identifiers:
{{< param my.nested.param >}}
ref
The ref
shortcode returns the permalink of the given page reference.
Example usage:
[Post 1]({{% ref "/posts/post-1" %}})
[Post 1]({{% ref "/posts/post-1.md" %}})
[Post 1]({{% ref "/posts/post-1#foo" %}})
[Post 1]({{% ref "/posts/post-1.md#foo" %}})
Rendered:
<a href="http://example.org/posts/post-1/">Post 1</a>
<a href="http://example.org/posts/post-1/">Post 1</a>
<a href="http://example.org/posts/post-1/#foo">Post 1</a>
<a href="http://example.org/posts/post-1/#foo">Post 1</a>
relref
The relref
shortcode returns the permalink of the given page reference.
Example usage:
[Post 1]({{% relref "/posts/post-1" %}})
[Post 1]({{% relref "/posts/post-1.md" %}})
[Post 1]({{% relref "/posts/post-1#foo" %}})
[Post 1]({{% relref "/posts/post-1.md#foo" %}})
Rendered:
<a href="/posts/post-1/">Post 1</a>
<a href="/posts/post-1/">Post 1</a>
<a href="/posts/post-1/#foo">Post 1</a>
<a href="/posts/post-1/#foo">Post 1</a>
To display a Twitter post with this URL:
https://twitter.com/SanDiegoZoo/status/1453110110599868418
Include this in your Markdown:
{{< twitter user="SanDiegoZoo" id="1453110110599868418" >}}
Rendered:
Owl bet you'll lose this staring contest 🦉 pic.twitter.com/eJh4f2zncC
— San Diego Zoo Wildlife Alliance (@sandiegozoo) October 26, 2021
vimeo
To display a Vimeo video with this URL:
https://vimeo.com/channels/staffpicks/55073825
Include this in your Markdown:
{{< vimeo 55073825 >}}
Rendered:
youtube
To display a YouTube video with this URL:
https://www.youtube.com/watch?v=0RKpf3rK57I
Include this in your Markdown:
{{< youtube 0RKpf3rK57I >}}
Rendered:
The youtube shortcode accepts these named parameters:
- id
- (
string
) The videoid
. Optional if theid
is provided as a positional argument as shown in the example above. - allowFullScreen
- (
bool
) Whether theiframe
element can activate full screen mode. Default istrue
. - autoplay
- (
bool
) Whether to automatically play the video. Forcesmute
totrue
. Default isfalse
. - class
- (
string
) Theclass
attribute of the wrappingdiv
element. When specified, removes thestyle
attributes from theiframe
element and its wrappingdiv
element. - controls
- (
bool
) Whether to display the video controls. Default istrue
. - end
- (
int
) The time, measured in seconds from the start of the video, when the player should stop playing the video. - loading
- (
string
) The loading attribute of theiframe
element, eithereager
orlazy
. Default iseager
. - loop
- (
bool
) Whether to indefinitely repeat the video. Ignores thestart
andend
arguments after the first play. Default isfalse
. - mute
- (
bool
) Whether to mute the video. Alwaystrue
whenautoplay
istrue
. Default isfalse
. - start
- (
int
) The time, measured in seconds from the start of the video, when the player should start playing the video. - title
- (
string
) Thetitle
attribute of theiframe
element. Defaults to “YouTube video”.
Example using some of the above:
{{< youtube id=0RKpf3rK57I start=30 end=60 loading=lazy >}}
Privacy configuration
To learn how to configure your Hugo site to meet the new EU privacy regulation, see privacy protections.
Create custom shortcodes
To learn more about creating custom shortcodes, see the shortcode template documentation.