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HTML <input> checked Attribute

HTML input Tag Reference HTML <input> tag

Example

An HTML form with a pre-selected checkbox:

<form action="demo_form.asp">
  <input type="checkbox" name="vehicle" value="Bike"> I have a bike<br>
  <input type="checkbox" name="vehicle" value="Car" checked> I have a car<br>
  <input type="submit" value="Submit">
</form>

Try it Yourself »

Definition and Usage

The checked attribute is a boolean attribute.

When present, it specifies that an <input> element should be pre-selected (checked) when the page loads.

The checked attribute can be used with <input type="checkbox"> and <input type="radio">.

The checked attribute can also be set after the page load, with a JavaScript.


Browser Support

The numbers in the table specify the first browser version that fully supports the attribute.

Attribute
checked 1.0 2.0 1.0 1.0 1.0


Differences Between HTML 4.01 and HTML5

NONE.


Differences Between HTML and XHTML

In XHTML, attribute minimization is forbidden, and the checked attribute must be defined as <input checked="checked" />.


Syntax

<input checked>


HTML input Tag Reference HTML <input> tag

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