# Forms

> In Studio, a **Form** is a file with a **.uiform** extension that contains the design and layout information for creating customized user interfaces using the **Form Builder**. When you create a new **Form**, the **Form Builder** opens in the **Designer** panel.

In Studio, a **Form** is a file with a **.uiform** extension that contains the design and layout information for creating customized user interfaces using the **Form Builder**. When you create a new **Form**, the **Form Builder** opens in the **Designer** panel.

The **Form Builder** is a customized implementation of the [form.io](http://form.io/) engine that allows you to create customized forms for your attended automation workflows. It provides a drag-and-drop interface for designing forms and callouts, which you can then integrate into your projects.

The **Form Builder** has a variety of form elements available, including text boxes, dropdowns, checkboxes, radio buttons, and more. Users can easily add these elements to their forms and customize them with labels, default values, validation rules, and other properties.

Figure 1. ![docs image](https://dev-assets.cms.uipath.com/assets/images/studio/studio-docs-image-249304-15a23daf.webp)

Once a form has been created, you can integrate it in your automations as a form (using the [Show Form](https://docs.uipath.com/activities/other/latest/user-guide/show-form-activity) activity) or as a callout (using the [Show Callout](https://docs.uipath.com/activities/other/latest/user-guide/show-callout-activity) activity). You can define triggers for when the form should be displayed, such as when a certain activity is executed or when a specific condition is met. You can also specify what data should be passed between the form and the workflow, enabling bi-directional communication.

To learn about the components and controls of a Form visit the [Form Builder](https://docs.uipath.com/activities/other/latest/user-guide/form-builder) page, and learn how to build your first form with the [Building your first form](https://docs.uipath.com/activities/other/latest/workflow/building-your-first-forms) tutorial.