---
title: Input mask
description: An input mask is a used to clarify the input format required in a given field and is helpful for users, removing confusion and reducing the number of validation errors.
---

<Callout>
  To be able to use the input mask in your application you will need to install the imask dependency with `npm install imask`.
</Callout>

## Default markup

Use an input mask in the fields where users have to enter their phone number, to make the formatting rules clear and help them avoid confusion.

```html example code centered columns={1}
<label class="form-label">Telephone mask</label>
<input type="text" name="input-mask" class="form-control" data-mask="(00) 0000-0000" data-mask-visible="true" placeholder="(00) 0000-0000" autocomplete="off" />
```