HTML alt attribute

Last Updated : 12 Mar, 2024

The alt attribute in HTML provides alternative text for images, aiding accessibility and providing context for screen readers.

Syntax:

<img src=" " alt=" " >

Supported tags:

Name	Description
area	<area>’s alt provides alternative text for image map areas.
image	<img> alt offers alternative text for image accessibility.
input	specify the alternative text for an image when the image attribute is not displayed.
<applet>	used to specify the alternate text for an applet element.

Attribute Values:

value	Description
text	is used to specify the alternative text for the supported element if the image is not displaying.

Example: In This example we includes an image with the alt attribute providing alternative text (“GeeksforGeeks logo”) for accessibility.

HTML

<!DOCTYPE html>
<html>

<head>
    <title>
        HTML img alt Attribute
    </title>
</head>

<body>
    <h1>GeeksforGeeks</h1>
    <h2>HTML img alt Attribute</h2>
    <img 
        src=
"https://media.geeksforgeeks.org/wp-content/uploads/20190506164011/logo3.png" 
        alt="GeeksforGeeks logo">
</body>

</html>

Output:

HTML image alt attribute

Example 2: In this example we are using an image with an image map created using <area> tags. Each <area> tag includes an alt attribute for accessibility, providing alternative text for the clickable areas.

HTML

<!DOCTYPE html> 
<html> 

<head> 
    <title> 
        HTML area alt Attribute 
    </title> 
</head> 

<body style="text-align:center;"> 
    <img src= 
"https://media.geeksforgeeks.org/wp-content/uploads/20190227165729/area11.png"
        alt="alt_attribute" width="300" height="119" class="aligncenter"
        usemap="#shapemap" /> 

    <map name="shapemap"> 
        
        <!-- area tag contained image. -->
        <area shape="poly" coords="59, 31, 28, 83, 91, 83" href= 
"https://media.geeksforgeeks.org/wp-content/uploads/20190227165802/area2.png"
        alt="Triangle"> 
        
        <area shape="circle" coords="155, 56, 26" href= 
"https://media.geeksforgeeks.org/wp-content/uploads/20190227165934/area3.png"
        alt="Circle"> 
        
        <area shape="rect" coords="224, 30, 276, 82" href= 
"https://media.geeksforgeeks.org/wp-content/uploads/20190227170021/area4.png"
        alt="Square"> 
    </map> 
</body> 

</html>

Output:

HTML area alt attribute

Example 3: In this example we are showing an input field of type image with the alt attribute providing alternative text (“Submit”) for accessibility.

HTML

<!DOCTYPE html>
<html>

<head>
    <title>
        HTML Input alt Attribute
    </title>
</head>

<body style="text-align:center;">

    <h1 style="color:green;">
        GeeksForGeeks
    </h1>

    <h2>HTML Input alt Attribute</h2>
    <input id="myImage" 
           type="image" 
           src=
"https://media.geeksforgeeks.org/wp-content/uploads/gfg-40.png" 
           alt="Submit" 
           width="48" 
           height="48">
</body>

</html>

Output: