To create a custom link in the footer of a Magento 2 store.

1: Create the Layout File

Create the app/code/Vendor/ModuleName/view/frontend/layout/default.xml file. 
<?xml version="1.0"?>
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" layout="1column" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
    <body>
        <referenceBlock name="footer_links">
            <block class="Magento\Framework\View\Element\Html\Link\Current" name="custom-footer-link">
                <arguments>
                    <argument name="label" xsi:type="string">Label</argument>
                    <argument name="path" xsi:type="string">route/index/controller/</argument>
                </arguments>
            </block>
        </referenceBlock>
    </body>
</page>

2. Explanation

  • <referenceBlock name="footer_links">: This references the existing block that holds the footer links in Magento 2.
  • <block class="Magento\Framework\View\Element\Html\Link">: This block creates an HTML link.
  • <argument name="label">: This sets the text that will be displayed for the link in the footer.
  • <argument name="path">: This defines the URL path where the link will point. Replace custom/route with the desired URL.