HTML <input> required attribute

The HTML <input> tag

Definition and Usage

required The property specifies that input fields must be filled out before submission.

required Property is a boolean property.

If the attribute is used, the field is required (or optional).

Note:required Attributes apply to the following input types:

  • text
  • search
  • url
  • tel
  • email
  • password
  • date pickers
  • number
  • checkbox
  • radio
  • file

Example

HTML form with a required input field:

<form action="/action_page.php">
  <label for="username">Username:</label>
  <input type="text" id="username" name="username" required>
  <input type="submit">
</form>

Try It Yourself

Syntax

<input required>

Browser Support

Chrome Edge Firefox Safari Opera
Chrome Edge Firefox Safari Opera
5.0 10.0 4.0 10.1 9.6

Note:required Attributes are new attributes in HTML5.

The HTML <input> tag