> ## Documentation Index
> Fetch the complete documentation index at: https://docs.kameleoon.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Personalize widget content

> Insert custom variables and dynamic values into the text of an element so that each visitor sees content that fits them.

Personalized content changes the text in a widget for each visitor. Instead of a fixed message, a text field can show the value of a custom variable for each visitor.

## Insert a custom variable into a text field

To insert a custom variable into a text field:

1. Select a text element.

2. In the **Text content** toolbar, click the three-dots menu, then click **Custom variables**.

3. Select a custom variable that you already created. To set a fallback, turn on **Define a default value** and enter the value. The default value appears if the custom variable's value is undefined or null.

![Text content editor beside the variable picker with a search field, a custom variable, a Define a default value toggle, and Cancel and Validate buttons](https://storage.googleapis.com/kameleoon-storage-documentation/user-manual/images/edit-your-widgets-step-16-custom-sidebar-content-2x.png)

4. Click **Validate**.

To check how the custom variable displays for visitors, [simulate your widget](https://docs.kameleoon.com/user-manual/assets/widgets/create-a-widget-with-the-widget-studio/simulate-your-widgets.md).