HTML Reference Manual

HTML Tag大全

HTML: <input> maxlength Attribute

The maxlength attribute specifies the maximum number of characters allowed in the <input> element.

Online Example

Limits the maximum length of the <input> element to15A string:

Example

<!DOCTYPE html>
<html>
<head>
<title>HTML:<input> maxlength Attribute　-　Basic Tutorial Website(oldtoolbag.com)<//title>
<body>
<form action="action_page.php">
　　Username: <input type="text" name="username" maxlength="15><br>
　　<input type="submit" value="Submit">
</form>
</html>

Test and see ‹/›

Browser Compatibility

IEFirefoxOperaChromeSafari

All major browsers support the maxlength attribute.

Definition and Usage

The maxlength attribute specifies the maximum number of characters allowed in the <input> element.

HTML 4.01 With HTML5Differences

None.

Syntax

<input maxlength="number">

Attribute value

Value	Description
number	Allowed in the <input> elementMaximumNumber of characters. The default value is524288.

　HTML <input> tag

HTML: <template> tag