Liquid Basics

In this section, we'll cover the fundamental concepts of Liquid that you'll need to create dynamic content in ConvertKit.

What is Liquid?

Liquid is a template language created by Shopify and used by ConvertKit to create dynamic content. It allows you to:

• Insert dynamic content into your emails and forms
• Create conditional logic
• Loop through lists of items
• Transform data using filters

Basic Syntax

Liquid uses two types of delimiters:

• {{ }} for output
• {% %} for logic

Output Example

Hello {{ subscriber.first_name }}!

Logic Example

{% if subscriber.tags contains "customer" %}
  Thank you for being a customer!
{% endif %}

Variables

ConvertKit provides several built-in variables you can use:

• subscriber.first_name
• subscriber.email
• subscriber.tags
• subscriber.custom_fields

Basic Operators

Liquid supports common operators:

• == (equals)
• != (not equals)
• > (greater than)
• < (less than)
• >= (greater than or equal to)
• <= (less than or equal to)
• contains (check if a value exists in a list)

Practice Exercise

Try this simple exercise in your ConvertKit email:

{% if subscriber.first_name %}
  Hello {{ subscriber.first_name }}!
{% else %}
  Hello there!
{% endif %}

This will:

1. Check if the subscriber has a first name
2. Display a personalized greeting if they do
3. Show a generic greeting if they don't

Next Steps

Now that you understand the basics, let's move on to ConvertKit-specific tags to learn about the special variables and features available in ConvertKit.