Loop through Uploads in Siteleaf (or any files in a Jekyll collection)

uploads.html

---
---
{% assign collection = site.collections | where: 'label', 'uploads' | first %}
{% for file in collection.files %}
  <li><img src="/uploads/{{ file.name }}">
{% endfor %}

Your _config.yml should look something like this:

collections:
  uploads:
    output: true

Might be helpful: Jekyll gives us direct access to file extensions through file.extname, so we can handle different file types. It's not unusual for my Uploads to end up containing other stuff like videos or PDFs.

I guess this is a sort of pull request:

---
---
{% assign collection = site.collections | where: 'label', 'uploads' | first %}
{% for file in collection.files %}

  {% assign extension = file.extname | downcase %}
  {% case extension %}

    {% when ".jpg" or ".jpeg" or ".png" or ".gif" or ".svg" %}
    <li><img src="/uploads/{{ file.name }}"></li>

    {% when ".mp4" %}
    <li><video controls src="/uploads/{{ file.name }}"></video></li>

    {% else %}
    <li><a href="/uploads/{{ file.name }}">{{ file.name }}</a></li>
    
  {% endcase %}

{% endfor %}