diff --git a/Classes/DataProcessing/ContentAreaProcessor.php b/Classes/DataProcessing/ContentAreaProcessor.php
new file mode 100644
index 00000000..b12d9337
--- /dev/null
+++ b/Classes/DataProcessing/ContentAreaProcessor.php
@@ -0,0 +1,117 @@
+<?php
+
+declare(strict_types=1);
+
+namespace B13\Container\DataProcessing;
+
+/*
+ * This file is part of TYPO3 CMS-based extension "container" by b13.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ */
+
+use B13\Container\Domain\Factory\FrontendContainerFactory;
+use B13\Container\Tca\Registry;
+use Symfony\Component\DependencyInjection\Attribute\Autoconfigure;
+use TYPO3\CMS\Core\Context\Context;
+use TYPO3\CMS\Core\Domain\RecordFactory;
+use TYPO3\CMS\Core\Information\Typo3Version;
+use TYPO3\CMS\Core\Page\ContentArea;
+use TYPO3\CMS\Core\Page\ContentAreaClosure;
+use TYPO3\CMS\Core\Page\ContentAreaCollection;
+use TYPO3\CMS\Core\Page\ContentSlideMode;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Frontend\ContentObject\ContentDataProcessor;
+use TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer;
+use TYPO3\CMS\Frontend\ContentObject\DataProcessorInterface;
+
+use function array_map;
+
+/**
+ * Automatically detects if content element has container columns
+ * adds them lazily to the content variable.
+ * The ContentArea can be used in f:render.contentArea ViewHelper
+ *
+ * Only use this DataProcessor for TYPO3 v14 or higher:
+ *
+ * typoscript:
+ *     lib.contentElement.dataProcessing.1773665522 = B13\Container\DataProcessing\ContentAreaProcessor
+ *     #or
+ *     tt_content.b13-2cols < lib.contentElement
+ *     tt_content.b13-2cols {
+ *         templateName = 2Cols
+ *         templateRootPaths.10 = EXT:base/Resources/Private/Templates
+ *         dataProcessing.100 = B13\Container\DataProcessing\ContentAreaProcessor
+ *     }
+ *
+ * html:
+ *     <f:render.contentArea contentArea="{content.200}" />
+ *
+ */
+#[Autoconfigure(public: true)]
+readonly class ContentAreaProcessor implements DataProcessorInterface
+{
+
+    public function __construct(
+        protected ContentDataProcessor $contentDataProcessor,
+        protected Context $context,
+        protected FrontendContainerFactory $frontendContainerFactory,
+        protected Registry $tcaRegistry,
+        protected RecordFactory $recordFactory,
+        protected Typo3Version $typo3Version,
+    ) {}
+
+    public function process(
+        ContentObjectRenderer $cObj,
+        array $contentObjectConfiguration,
+        array $processorConfiguration,
+        array $processedData,
+    ): array {
+        if ($this->typo3Version->getMajorVersion() <= 13) {
+            throw new \Exception(self::class . ' requires TYPO3 v14 or higher', 1773664279);
+        }
+
+        $record = $cObj->data;
+
+        $CType = $record['CType'] ?? '';
+        if (!$this->tcaRegistry->isContainerElement($CType)) {
+            return $processedData;
+        }
+
+        $columnsColPos = $this->tcaRegistry->getAllAvailableColumnsColPos($CType);
+
+        $container = null;
+
+        $areas = [];
+        foreach ($columnsColPos as $colPos) {
+            $areas[$colPos] = new ContentAreaClosure(
+                function () use (&$container, $CType, $cObj, $record, $colPos): ContentArea {
+                    $container ??= $this->frontendContainerFactory->buildContainer($cObj, $this->context, (int)$record['uid']);
+
+                    $contentDefenderConfiguration = $this->tcaRegistry->getContentDefenderConfiguration($CType, $colPos);
+
+                    $rows = $container->getChildrenByColPos($colPos);
+
+                    $records = array_map(fn($row) => $this->recordFactory->createFromDatabaseRow('tt_content', $row), $rows);
+                    return new ContentArea(
+                        (string)$colPos,
+                        $this->tcaRegistry->getColPosName($record['CType'], $colPos),
+                        $colPos,
+                        ContentSlideMode::None,
+                        GeneralUtility::trimExplode(',', $contentDefenderConfiguration['allowed.']['CType'] ?? '', true),
+                        GeneralUtility::trimExplode(',', $contentDefenderConfiguration['disallowed.']['CType'] ?? '', true),
+                        [
+                            'container' => $container,
+                        ],
+                        $records,
+                    );
+                },
+            );
+        }
+
+        $processedData[$processedConfiguration['as'] ?? 'content'] = new ContentAreaCollection($areas);
+        return $processedData;
+    }
+}
diff --git a/Classes/Tca/Registry.php b/Classes/Tca/Registry.php
index 72ad3c83..941cf19a 100644
--- a/Classes/Tca/Registry.php
+++ b/Classes/Tca/Registry.php
@@ -187,6 +187,19 @@ public function getContainerLabel(string $cType): string
         return $GLOBALS['TCA']['tt_content']['containerConfiguration'][$cType]['label'] ?? $cType;
     }
 
+    public function getColPosName(string $cType, int $colPos): ?string
+    {
+        $grid = $this->getGrid($cType);
+        foreach ($grid as $row) {
+            foreach ($row as $column) {
+                if ($column['colPos'] === $colPos) {
+                    return (string)$column['name'];
+                }
+            }
+        }
+        return null;
+    }
+
     public function getAvailableColumns(string $cType): array
     {
         $columns = [];