HTML <input> readonly Attribute

HTML input Tag Reference HTML <input> tag

Example

An HTML form with a read-only input field:

<form action="demo_form.asp">
  Country: <input type="text" name="country" value="Norway" readonly><br>
  <input type="submit" value="Submit">
</form>

Try it Yourself »

Definition and Usage

The readonly attribute is a boolean attribute.

When present, it specifies that an input field is read-only.

A read-only input field cannot be modified (however, a user can tab to it, highlight it, and copy the text from it).

The readonly attribute can be set to keep a user from changing the value until some other conditions have been met (like selecting a checkbox, etc.). Then, a JavaScript can remove the readonly value, and make the input field editable.


Browser Support

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

Attribute
readonly 1.0 6.0 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 readonly attribute must be defined as <input readonly="readonly" />.


Syntax

<input readonly>

HTML input Tag Reference HTML <input> tag

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