Overview
Modifiers are available exclusively in Antlers templates. Each modifier is a function that accepts the value of the variable it's attached to, can do just about anything with that data, and then returns it. Multiple modifiers chained onto a variable will be executed in sequence, each passing its modified value onto the next.
Example
You could take some text, render it as markdown, uppercase it, and ensure there are no widows (lines with only one word on them) like this:
// This...{{ "Ruth, Ruth, Ruth! Baby Ruth!" | markdown | upper | widont }} // Becomes this!<p>RUTH, RUTH, RUTH! BABY RUTH!</p>
Related Reading
Eager for more knowledge? Check out Antler's modifier syntax and discover how to build your own.
Core Modifiers
You can find a full list of modifiers included with Statamic in the reference section.