diff --git a/README.md b/README.md
index f982899..728fd26 100644
--- a/README.md
+++ b/README.md
@@ -145,6 +145,41 @@ $thumb = $juImg->render('images/sampledata/fruitshop/apple.jpg', [
 |--------------|---------|---------|----------------------------------------------------------------------------------------|
 | webp         | Boolean | false   | If `true` add support WebP image. For this option use tag `<picture>`, see in example. |
 
+### AVIF support
+
+AVIF image format (requires PHP 8.1.0)
+
+```php
+<?php
+
+$thumb = $juImg->render('images/sampledata/fruitshop/apple.jpg', [
+	'w'     	=> '300',
+	'h'     	=> '100',
+	'q'         => '95',
+	'avif'      => true
+]);
+?>
+
+<picture>
+	<source srcset="<?php echo $thumb->avif; ?>" type="image/avif">
+	<img src="<?php echo $thumb->img; ?>" alt="Apple" width="300" height="100">
+</picture>
+```
+
+Display as:
+
+```html
+
+<picture>
+	<source srcset="img/apple.jpg.avif" type="image/avif">
+	<img src="img/apple.jpg" alt="Apple" width="300" height="100">
+</picture>
+```
+
+| WebP command | Type    | Default | Description                                                             |
+|--------------|---------|---------|-------------------------------------------------------------------------|
+| avif         | Boolean | false   | If `true` add support WebP image. For this option use tag `<picture>`. AVIF image format (requires PHP 8.1.0) |
+
 ### YouTube and Vimeo support
 
 Youtube:
diff --git a/build.xml b/build.xml
index 8cf9754..4eb0c2b 100644
--- a/build.xml
+++ b/build.xml
@@ -3,7 +3,7 @@
          basedir=".">
 
     <property name="VERSION"
-              value="5.4" />
+              value="5.5" />
     <property name="build"
               value="build" />
     <property name="temp"
diff --git a/src/Image.php b/src/Image.php
index cc5c223..d9c0ea9 100644
--- a/src/Image.php
+++ b/src/Image.php
@@ -68,6 +68,14 @@ public function render($url, array $attr = [])
 			];
 		}
 
+		if(isset($attr[ 'avif' ]) === true)
+		{
+			return (object) [
+				'img'  => $img,
+				'avif' => $this->thumb($url, array_merge($attr, [ 'f' => 'avif' ]))
+			];
+		}
+
 		return $img;
 	}