What is Liquid templates?

Liquid is a template engine created by Shopify and written in Ruby. It's used to dynamically generate text outputs, such as HTML, XML, or JSON, based on a combination of static content and dynamic data. Common use cases include e-commerce website theming (as it's core to Shopify themes), email templating, and generating configuration files. Liquid templates contain variables and control flow logic that are replaced with actual values at runtime.