diff --git a/Preloader.php b/Preloader.php
new file mode 100644
index 000000000..6afdb9b08
--- /dev/null
+++ b/Preloader.php
@@ -0,0 +1,152 @@
+<?php
+/**
+ * Orange Management
+ *
+ * PHP Version 7.4
+ *
+ * @package   phpOMS
+ * @copyright Dennis Eichhorn
+ * @license   OMS License 1.0
+ * @version   1.0.0
+ * @link      https://orange-management.org
+ */
+declare(strict_types=1);
+
+namespace phpOMS;
+
+/**
+ * Preloader class.
+ *
+ * @package phpOMS
+ * @license OMS License 1.0
+ * @link    https://orange-management.org
+ * @since   1.0.0
+ */
+final class Preloader
+{
+    /**
+     * Files and paths
+     *
+     * @var   array
+     * @since 1.0.0
+     */
+    private array $includes = [];
+
+    /**
+     * Ignored files and paths
+     *
+     * @var   array
+     * @since 1.0.0
+     */
+    private array $ignores = [];
+
+    /**
+     * Ignore a path or file from preloading
+     *
+     * @param string $path Path to prevent preloading
+     *
+     * @return Preloader
+     *
+     * @since 1.0.0
+     */
+    public function ignore(string $path) : self
+    {
+        $this->ignores[] = $path;
+
+        return $this;
+    }
+
+    /**
+     * Add a path to preload
+     *
+     * @param string $path Path to preload
+     *
+     * @return Preloader
+     *
+     * @since 1.0.0
+     */
+    public function includePath(string $path) : self
+    {
+        $this->includes[] = $path;
+
+        return $this;
+    }
+
+    /**
+     * Load paths
+     *
+     * @return void
+     *
+     * @since 1.0.0
+     */
+    public function load() : void
+    {
+        foreach ($this->includes as $include) {
+            if (\in_array($include, ['.', '..'])
+                || \in_array($include, $this->ignores)
+            ) {
+                continue;
+            }
+
+            if (\is_dir($include)) {
+                $this->loadDir($include);
+            } elseif (\is_file($include)) {
+                $this->loadFile($include);
+            }
+        }
+    }
+
+    /**
+     * Load directory paths
+     *
+     * @param string $path Path to load
+     *
+     * @return void
+     *
+     * @since 1.0.0
+     */
+    private function loadDir(string $path) : void
+    {
+        $fh = \opendir($path);
+
+        if ($fh === false) {
+            return;
+        }
+
+        while ($file = \readdir($fh)) {
+            if (\in_array($file, ['.', '..'])
+                || \in_array($file, $this->ignores)
+            ) {
+                continue;
+            }
+
+            if (\is_dir($path . '/' . $file)) {
+                $this->loadDir($path . '/' . $file);
+            } elseif (\is_file($path . '/' . $file)) {
+                $this->loadFile($path . '/' . $file);
+            }
+        }
+
+        \closedir($fh);
+    }
+
+    /**
+     * Load file
+     *
+     * @param string $path Path to load
+     *
+     * @return void
+     *
+     * @since 1.0.0
+     */
+    private function loadFile(string $path) : void
+    {
+        if (\in_array($path, $this->ignores)
+            || \substr($path, -\strlen('.php')) !== '.php'
+        ) {
+            return;
+        }
+
+        require_once($path);
+    }
+}