diff --git a/src/Cms/AppPlugins.php b/src/Cms/AppPlugins.php
index d5b5f016dc..ccda723401 100644
--- a/src/Cms/AppPlugins.php
+++ b/src/Cms/AppPlugins.php
@@ -13,6 +13,7 @@
 use Kirby\Image\Image;
 use Kirby\Plugin\License;
 use Kirby\Plugin\Plugin;
+use Kirby\Plugin\Autoloader;
 use Kirby\Text\KirbyTag;
 use Kirby\Toolkit\A;
 use Kirby\Toolkit\Collection as ToolkitCollection;
@@ -871,18 +872,34 @@ public static function plugin(
 		string|null $root = null,
 		string|null $version = null,
 		Closure|string|array|null $license = null,
+		bool|string $autoloader = false
 	): Plugin|null {
-		if ($extends === null) {
+
+
+		if ($extends === null && $autoloader === false) {
 			return static::$plugins[$name] ?? null;
 		}
 
+		$root ??= $extends['root'] ?? dirname(debug_backtrace()[0]['file']);
+
+		if ($autoloader) {
+
+			//Allow to apply custom Autoloader
+			$autolader_class = is_bool($autoloader) ? Autoloader::class : $autoloader;
+
+			$extends = A::merge($autolader_class::load(
+				name: $name,
+				root: $root
+			), $extends ?? []);
+		}
+
 		$plugin = new Plugin(
-			name:    $name,
+			name: $name,
 			extends: $extends,
-			info:    $info,
+			info: $info,
 			license: $license,
 			// TODO: Remove fallback to $extends in v7
-			root:    $root ?? $extends['root'] ?? dirname(debug_backtrace()[0]['file']),
+			root: $root,
 			version: $version
 		);
 
@@ -925,6 +942,11 @@ public function plugins(array|null $plugins = null): array
 		return static::$plugins;
 	}
 
+	public function allowedExtensionsKeys(): array
+	{
+		return array_keys($this->extensions);
+	}
+
 	/**
 	 * Loads all plugins from site/plugins
 	 *
diff --git a/src/Plugin/Autoloader.php b/src/Plugin/Autoloader.php
new file mode 100644
index 0000000000..9f6b4c6204
--- /dev/null
+++ b/src/Plugin/Autoloader.php
@@ -0,0 +1,290 @@
+<?php
+
+namespace Kirby\Plugin;
+
+/**
+ * Autoloader 
+ */
+
+use Closure;
+use Kirby\Filesystem\Dir;
+use Kirby\Toolkit\A;
+use Kirby\Data\Data;
+use Kirby\Exception\Exception;
+use Kirby\Exception\InvalidArgumentException;
+use Kirby\Filesystem\F;
+use Kirby\Toolkit\Str;
+use Throwable;
+
+class Autoloader
+{
+
+    public array $data = [];
+
+    /**
+     * @param string $name Plugin name
+     * @param string $root The root path of the plugin
+     * @param array $data Predefined extension data to extend
+     * @return void|$this 
+     */
+    public function __construct(
+        public string $name,
+        public string $root
+    ) {
+
+        //Load classes before everything else
+        $classfolder = $root . '/classes/';
+
+        if (Dir::exists($classfolder)) {
+            $this->loadClasses($classfolder);
+        }
+
+        $folders = [
+            'autoload'      => 'loadAutoload',
+            'blueprints'    => 'loadBlueprints',
+            'i18n'          => 'loadTranslations',
+            'fields'        => 'loadFields',
+            'sections'      => 'loadSections',
+            'snippets'      => 'loadSnippets',
+            'templates'     => 'loadTemplates'
+        ];
+
+        foreach (Dir::dirs($this->root) as $dir) {
+            if (array_key_exists($dir, $folders)) {
+                $method = $folders[$dir];
+                $this->$method($this->root . '/' . $dir . '/');
+            }
+        }
+    }
+
+    /**
+     * Autoload autoload
+     * @param string $root 
+     * @return void 
+     */
+    public function loadAutoload(string $root): void
+    {
+        foreach (Dir::files($root) as $path) {
+
+            $key = F::name($path);
+            $file = $root . $path;
+            $this->data[$key] = Data::read($file);
+        };
+    }
+
+    /**
+     * Autoload blueprints
+     * @param string $root 
+     * @return void 
+     */
+    public function loadBlueprints(string $root): void
+    {
+        foreach (Dir::index($root) as $path) {
+
+            $file = $root . $path;
+
+            //Skip folder and file/folder thats starts with '_'
+            if (F::exists($file) === false || Str::contains($path, '/_')) {
+                continue;
+            }
+
+            //Has no Subfolder
+            if (($dirname = F::dirname($path)) === '.') {
+                $key = F::name($path);
+            }
+
+            $key ??= $dirname . '/' . F::name($path);
+
+            $this->data['blueprints'][$key] = Data::read($file);
+        };
+    }
+
+    /**
+     * Load classes
+     * @param string $root 
+     * @return void 
+     */
+    public function loadClasses(string $root): void
+    {
+
+        $classes = [];
+
+        foreach (Dir::index($root) as $path) {
+
+            $file = $root . $path;
+
+            //Skip folder and file/folder thats starts with '_'
+            if (F::exists($file) === false || Str::contains($path, '/_')) {
+                continue;
+            }
+
+            //Has no Subfolder
+            if (($dirname = F::dirname($path)) === '.') {
+                $key = F::name($path);
+            }
+
+            $key ??= $dirname . '/' . F::name($path);
+
+            $prefix = array_map('ucfirst', explode('/', $this->name));
+            $classname = A::merge($prefix, explode('/', $key));
+            $classes[implode('\\', $classname)] = $file;
+        };
+
+        F::loadClasses($classes);
+    }
+
+
+    /**
+     * Autoload translations
+     * @param string $root 
+     * @return void 
+     */
+    public function loadTranslations(string $root): void
+    {
+        foreach (Dir::index($root) as $path) {
+
+            $file = $root . $path;
+
+            //Skip folder and file/folder thats starts with '_'
+            if (F::exists($file) === false || Str::contains($path, '/_')) {
+                continue;
+            }
+
+            //Has no Subfolder
+            if (($dirname = F::dirname($path)) === '.') {
+                $key = F::name($path);
+            }
+
+            $key ??= $dirname . '/' . F::name($path);
+
+            $this->data['translations'][$key] = Data::read($file);
+        };
+    }
+
+    /**
+     * Autoload fields
+     * @param string $root 
+     * @return void 
+     */
+    public function loadFields(string $root): void
+    {
+        foreach (Dir::index($root) as $path) {
+
+            $file = $root . $path;
+
+            //Skip folder and file/folder thats starts with '_'
+            if (F::exists($file) === false || Str::contains($path, '/_')) {
+                continue;
+            }
+
+            //Has no Subfolder
+            if (($dirname = F::dirname($path)) === '.') {
+                $key = F::name($path);
+            }
+
+            $key ??= $dirname . '/' . F::name($path);
+
+            $this->data['fields'][$key] = Data::read($file);
+        };
+    }
+
+    /**
+     * Autoload sections
+     * @param string $root 
+     * @return void 
+     */
+    public function loadSections(string $root): void
+    {
+        foreach (Dir::index($root) as $path) {
+
+            $file = $root . $path;
+
+            //Skip folder and file/folder thats starts with '_'
+            if (F::exists($file) === false || Str::contains($path, '/_')) {
+                continue;
+            }
+
+            //Has no Subfolder
+            if (($dirname = F::dirname($path)) === '.') {
+                $key = F::name($path);
+            }
+
+            $key ??= $dirname . '/' . F::name($path);
+
+            $this->data['sections'][$key] = Data::read($file);
+        };
+    }
+
+    /**
+     * Autoload snippets
+     * @param string $root 
+     * @return void 
+     */
+    public function loadSnippets(string $root): void
+    {
+        foreach (Dir::index($root) as $path) {
+
+            $file = $root . $path;
+
+            //Skip folder and file/folder thats starts with '_'
+            if (F::exists($file) === false || Str::contains($path, '/_')) {
+                continue;
+            }
+
+            //Has no Subfolder
+            if (($dirname = F::dirname($path)) === '.') {
+                $key = F::name($path);
+            }
+
+            $key ??= $dirname . '/' . F::name($path);
+
+            $this->data['snippets'][$key] = $file;
+        };
+    }
+
+    /**
+     * Autoload templates
+     * @param string $root 
+     * @return void 
+     */
+    public function loadTemplates(string $root): void
+    {
+        foreach (Dir::index($root) as $path) {
+
+            $file = $root . $path;
+
+            //Skip folder and file/folder thats starts with '_'
+            if (F::exists($file) === false || Str::contains($path, '/_')) {
+                continue;
+            }
+
+            //Has no Subfolder
+            if (($dirname = F::dirname($path)) === '.') {
+                $key = F::name($path);
+            }
+
+            $key ??= $dirname . '/' . F::name($path);
+
+            $this->data['templates'][$key] = $file;
+        };
+    }
+
+    /**
+     * Run autoloader and return the results
+     * @param mixed ...$params 
+     * @return array 
+     */
+    public static function load(...$params): array
+    {
+        $self = new self(...$params);
+        return $self->toArray();
+    }
+
+    /**
+     * Returns the autoloaded data
+     *  @return array  */
+    public function toArray(): array
+    {
+        return $this->data;
+    }
+}
diff --git a/src/Plugin/Plugin.php b/src/Plugin/Plugin.php
index ab3ee6e63f..ffb15f4882 100644
--- a/src/Plugin/Plugin.php
+++ b/src/Plugin/Plugin.php
@@ -71,6 +71,7 @@ public function __construct(
 		$info          = Data::read($this->manifest(), fail: false);
 		$this->info    = [...$info, ...$this->info];
 		$this->license = $license ?? $this->info['license'] ?? '-';
+		
 	}
 
 	/**
diff --git a/vendor/composer/autoload_classmap.php b/vendor/composer/autoload_classmap.php
index 0002e42587..1e5e13c0b8 100644
--- a/vendor/composer/autoload_classmap.php
+++ b/vendor/composer/autoload_classmap.php
@@ -80,6 +80,7 @@
     'Kirby\\Cms\\HasChildren' => $baseDir . '/src/Cms/HasChildren.php',
     'Kirby\\Cms\\HasFiles' => $baseDir . '/src/Cms/HasFiles.php',
     'Kirby\\Cms\\HasMethods' => $baseDir . '/src/Cms/HasMethods.php',
+    'Kirby\\Cms\\HasModels' => $baseDir . '/src/Cms/HasModels.php',
     'Kirby\\Cms\\HasSiblings' => $baseDir . '/src/Cms/HasSiblings.php',
     'Kirby\\Cms\\Helpers' => $baseDir . '/src/Cms/Helpers.php',
     'Kirby\\Cms\\Html' => $baseDir . '/src/Cms/Html.php',
@@ -205,6 +206,7 @@
     'Kirby\\Form\\FieldClass' => $baseDir . '/src/Form/FieldClass.php',
     'Kirby\\Form\\Field\\BlocksField' => $baseDir . '/src/Form/Field/BlocksField.php',
     'Kirby\\Form\\Field\\EntriesField' => $baseDir . '/src/Form/Field/EntriesField.php',
+    'Kirby\\Form\\Field\\ExceptionField' => $baseDir . '/src/Form/Field/ExceptionField.php',
     'Kirby\\Form\\Field\\LayoutField' => $baseDir . '/src/Form/Field/LayoutField.php',
     'Kirby\\Form\\Fields' => $baseDir . '/src/Form/Fields.php',
     'Kirby\\Form\\Form' => $baseDir . '/src/Form/Form.php',
@@ -314,6 +316,7 @@
     'Kirby\\Parsley\\Schema\\Plain' => $baseDir . '/src/Parsley/Schema/Plain.php',
     'Kirby\\Plugin\\Asset' => $baseDir . '/src/Plugin/Asset.php',
     'Kirby\\Plugin\\Assets' => $baseDir . '/src/Plugin/Assets.php',
+    'Kirby\\Plugin\\Autoloader' => $baseDir . '/src/Plugin/Autoloader.php',
     'Kirby\\Plugin\\License' => $baseDir . '/src/Plugin/License.php',
     'Kirby\\Plugin\\LicenseStatus' => $baseDir . '/src/Plugin/LicenseStatus.php',
     'Kirby\\Plugin\\Plugin' => $baseDir . '/src/Plugin/Plugin.php',
diff --git a/vendor/composer/autoload_static.php b/vendor/composer/autoload_static.php
index 12df7353c2..2edc30936b 100644
--- a/vendor/composer/autoload_static.php
+++ b/vendor/composer/autoload_static.php
@@ -201,6 +201,7 @@ class ComposerStaticInit0bf5c8a9cfa251a218fc581ac888fe35
         'Kirby\\Cms\\HasChildren' => __DIR__ . '/../..' . '/src/Cms/HasChildren.php',
         'Kirby\\Cms\\HasFiles' => __DIR__ . '/../..' . '/src/Cms/HasFiles.php',
         'Kirby\\Cms\\HasMethods' => __DIR__ . '/../..' . '/src/Cms/HasMethods.php',
+        'Kirby\\Cms\\HasModels' => __DIR__ . '/../..' . '/src/Cms/HasModels.php',
         'Kirby\\Cms\\HasSiblings' => __DIR__ . '/../..' . '/src/Cms/HasSiblings.php',
         'Kirby\\Cms\\Helpers' => __DIR__ . '/../..' . '/src/Cms/Helpers.php',
         'Kirby\\Cms\\Html' => __DIR__ . '/../..' . '/src/Cms/Html.php',
@@ -326,6 +327,7 @@ class ComposerStaticInit0bf5c8a9cfa251a218fc581ac888fe35
         'Kirby\\Form\\FieldClass' => __DIR__ . '/../..' . '/src/Form/FieldClass.php',
         'Kirby\\Form\\Field\\BlocksField' => __DIR__ . '/../..' . '/src/Form/Field/BlocksField.php',
         'Kirby\\Form\\Field\\EntriesField' => __DIR__ . '/../..' . '/src/Form/Field/EntriesField.php',
+        'Kirby\\Form\\Field\\ExceptionField' => __DIR__ . '/../..' . '/src/Form/Field/ExceptionField.php',
         'Kirby\\Form\\Field\\LayoutField' => __DIR__ . '/../..' . '/src/Form/Field/LayoutField.php',
         'Kirby\\Form\\Fields' => __DIR__ . '/../..' . '/src/Form/Fields.php',
         'Kirby\\Form\\Form' => __DIR__ . '/../..' . '/src/Form/Form.php',
@@ -435,6 +437,7 @@ class ComposerStaticInit0bf5c8a9cfa251a218fc581ac888fe35
         'Kirby\\Parsley\\Schema\\Plain' => __DIR__ . '/../..' . '/src/Parsley/Schema/Plain.php',
         'Kirby\\Plugin\\Asset' => __DIR__ . '/../..' . '/src/Plugin/Asset.php',
         'Kirby\\Plugin\\Assets' => __DIR__ . '/../..' . '/src/Plugin/Assets.php',
+        'Kirby\\Plugin\\Autoloader' => __DIR__ . '/../..' . '/src/Plugin/Autoloader.php',
         'Kirby\\Plugin\\License' => __DIR__ . '/../..' . '/src/Plugin/License.php',
         'Kirby\\Plugin\\LicenseStatus' => __DIR__ . '/../..' . '/src/Plugin/LicenseStatus.php',
         'Kirby\\Plugin\\Plugin' => __DIR__ . '/../..' . '/src/Plugin/Plugin.php',