HTML · Image and media attributes

decoding

Hints whether image decoding should happen synchronously or asynchronously.

htmlRunnable example html course

Syntax

decoding="async"

Example

Try it

<img src="https://picsum.photos/120/80" alt="Placeholder" decoding="async" width="120" height="80">

Reference pages are the quick answer. The course explains the why, shows the full example and ends with a challenge.