diff --git a/tubesync/common/json.py b/tubesync/common/json.py
new file mode 100644
index 00000000..e8a22e1c
--- /dev/null
+++ b/tubesync/common/json.py
@@ -0,0 +1,16 @@
+from django.core.serializers.json import DjangoJSONEncoder
+
+
+class JSONEncoder(DjangoJSONEncoder):
+    item_separator = ','
+    key_separator = ':'
+
+    def default(self, obj):
+        try:
+            iterable = iter(obj)
+        except TypeError:
+            pass
+        else:
+            return list(iterable)
+        return super().default(obj)
+