Creating a Custom Tag Cloud Widget in Jekyll

Creating a custom tag cloud widget in Jekyll allows you to display your most popular tags in a visually appealing way. This can enhance navigation and improve user engagement on your website. In this guide, we'll walk through the steps to build a simple yet effective tag cloud widget for your Jekyll site.

Understanding the Basics of Jekyll Tag Clouds

A tag cloud visually represents the frequency of tags used in your content. More popular tags appear larger or in a different style, helping visitors quickly identify trending topics. Jekyll, being a static site generator, requires a bit of customization to generate dynamic content like a tag cloud.

Step 1: Gather Your Tags

Jekyll automatically creates a site.tags variable that contains all tags and their associated posts. To access all tags, add this to your template:

{{ site.tags }}

Step 2: Generate the Tag Cloud

You can loop through site.tags to generate your tag cloud. For each tag, count the number of posts and assign a size class based on frequency. Here's a simple example:

{% raw %}{% assign max_count = site.tags | map: 'size' | sort | last %}{% endraw %}





In your template, use the following code:



{% raw %}

  {% for tag in site.tags %}
    {% assign count = tag[1] | size %}
    {% assign size_class = '' %}
    {% if count > max_count | divided_by: 2 %}
      {% assign size_class = 'large' %}
    {% elsif count > max_count | divided_by: 4 %}
      {% assign size_class = 'medium' %}
    {% else %}
      {% assign size_class = 'small' %}
    {% endif %}
    {{ tag[0] }}
  {% endfor %}

{% endraw %}



Step 3: Style Your Tag Cloud



Use CSS to style your tags based on their size classes. For example:









Conclusion



By customizing your Jekyll site with a tag cloud widget, you improve navigation and highlight popular topics. While Jekyll is static, clever use of Liquid templates allows for dynamic-like features such as this. Experiment with different styles and sizes to match your site's design and enhance user experience.