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HTML <select> required Attribute

The required attribute on a <select> tag specifies that an item must be selected before submitting the form.

The form cannot be submitted if the value is empty or null.

Example

#

A required attribute on a <select> element.
The dropdown must have a value selected before the form can be submitted.


<form action="/tutorial/action.html">
  <select name="size" required>
    <option value="">-- Select Size --</option>
    <option value="small">Small</option>
    <option value="medium">Medium</option>
    <option value="large">Large</option>
  </select><br />

  <button type="submit">Submit</button>
</form>

Using required

The required attribute specifies that an item must be selected before submitting the form.

As long as the option value is null or is an empty string, the form cannot be submitted.

The required attribute is part of the built-in validation functionality in HTML.


Syntax

<select required>

Browser support

Here is when required support started for each browser:

Chrome
1.0 Sep 2008
Firefox
4.0 Mar 2011
IE/Edge
10.0 Sep 2012
Opera
1.0 Jan 2006
Safari
1.0 Jan 2003

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Last updated on Sep 30, 2023




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