Example
An audio file that will automatically start playing:
<audio controls autoplay>
<source src="horse.ogg" type="audio/ogg">
<source src="horse.mp3" type="audio/mpeg">
Your browser does not support the audio element.
</audio>
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Definition and Usage
The autoplay attribute is a boolean attribute.
When present, the audio will automatically start playing as soon as it can do so without stopping.
Browser Support
The numbers in the table specify the first browser version that fully supports the attribute.
| Attribute | |||||
|---|---|---|---|---|---|
| autoplay | 4.0 | 9.0 | 3.5 | 4.0 | 10.5 |
Differences Between HTML 4.01 and HTML5
The <audio> tag is new in HTML5.
Differences Between HTML and XHTML
In XHTML, attribute minimization is forbidden, and the autoplay attribute must be defined as <audio autoplay="autoplay">.
Syntax
<audio autoplay>