diff --git a/src/plugins/qmldesigner/components/collectioneditor/collectiondetails.cpp b/src/plugins/qmldesigner/components/collectioneditor/collectiondetails.cpp
index 4b8a297140f..c2b29d32f08 100644
--- a/src/plugins/qmldesigner/components/collectioneditor/collectiondetails.cpp
+++ b/src/plugins/qmldesigner/components/collectioneditor/collectiondetails.cpp
@@ -3,6 +3,7 @@
 
 #include "collectiondetails.h"
 
+#include <QJsonArray>
 #include <QJsonObject>
 #include <QVariant>
 
@@ -196,4 +197,13 @@ void CollectionDetails::markChanged()
     d->isChanged = true;
 }
 
+QJsonArray CollectionDetails::getJsonCollection() const
+{
+    QJsonArray collectionArray;
+    for (const QJsonObject &element : std::as_const(d->elements))
+        collectionArray.push_back(element);
+
+    return collectionArray;
+}
+
 } // namespace QmlDesigner
diff --git a/src/plugins/qmldesigner/components/collectioneditor/collectiondetails.h b/src/plugins/qmldesigner/components/collectioneditor/collectiondetails.h
index c3ec59f5d8f..0362fbfe5bc 100644
--- a/src/plugins/qmldesigner/components/collectioneditor/collectiondetails.h
+++ b/src/plugins/qmldesigner/components/collectioneditor/collectiondetails.h
@@ -63,6 +63,7 @@ public:
     bool markSaved();
 
     void swap(CollectionDetails &other);
+    QJsonArray getJsonCollection() const;
     CollectionDetails &operator=(const CollectionDetails &other);
 
 private:
diff --git a/src/plugins/qmldesigner/components/collectioneditor/singlecollectionmodel.cpp b/src/plugins/qmldesigner/components/collectioneditor/singlecollectionmodel.cpp
index a86b42cd169..35219a98da7 100644
--- a/src/plugins/qmldesigner/components/collectioneditor/singlecollectionmodel.cpp
+++ b/src/plugins/qmldesigner/components/collectioneditor/singlecollectionmodel.cpp
@@ -228,4 +228,25 @@ void SingleCollectionModel::setCollectionName(const QString &newCollectionName)
     }
 }
 
+bool SingleCollectionModel::saveCollectionAsJson(const QString &collection, const QJsonArray &content, const QString &source)
+{
+    QFile sourceFile(source);
+    if (sourceFile.open(QFile::ReadWrite)) {
+        QJsonParseError jpe;
+        QJsonDocument document = QJsonDocument::fromJson(sourceFile.readAll(), &jpe);
+
+        if (jpe.error == QJsonParseError::NoError) {
+            QJsonObject collectionMap = document.object();
+            collectionMap[collection] = content;
+            document.setObject(collectionMap);
+        }
+
+        sourceFile.resize(0);
+        if (sourceFile.write(document.toJson()))
+            return true;
+    }
+
+    return false;
+}
+
 } // namespace QmlDesigner
diff --git a/src/plugins/qmldesigner/components/collectioneditor/singlecollectionmodel.h b/src/plugins/qmldesigner/components/collectioneditor/singlecollectionmodel.h
index a545f4b0e78..250f1dae5d5 100644
--- a/src/plugins/qmldesigner/components/collectioneditor/singlecollectionmodel.h
+++ b/src/plugins/qmldesigner/components/collectioneditor/singlecollectionmodel.h
@@ -42,6 +42,7 @@ private:
     void setCollectionName(const QString &newCollectionName);
     void loadJsonCollection(const QString &source, const QString &collection);
     void loadCsvCollection(const QString &source, const QString &collectionName);
+    bool saveCollectionAsJson(const QString &collection, const QJsonArray &content, const QString &source);
 
     QHash<CollectionReference, CollectionDetails> m_openedCollections;
     CollectionDetails m_currentCollection;