diff --git a/classes/deck/deck.gd b/classes/deck/deck.gd
index 88d1f03..153a67c 100644
--- a/classes/deck/deck.gd
+++ b/classes/deck/deck.gd
@@ -123,6 +123,10 @@ static func from_json(json: String) -> Deck:
 			var connection_data = nodes_data[node_id].incoming_connections[connection_id]
 			node.incoming_connections[int(connection_id)] = connection_data
 
+		for i in nodes_data[node_id].port_values.size():
+			var port_value = nodes_data[node_id].port_values[i]
+			node.ports[i].value = port_value
+
 		for key in nodes_data[node_id].meta:
 			node.set_meta(key, nodes_data[node_id].meta[key])
 
diff --git a/classes/deck/deck_node.gd b/classes/deck/deck_node.gd
index a40af53..3597f7b 100644
--- a/classes/deck/deck_node.gd
+++ b/classes/deck/deck_node.gd
@@ -176,11 +176,17 @@ func to_dict(with_meta: bool = true) -> Dictionary:
 		"incoming_connections": incoming_connections,
 		"props": {},
 		"node_type": node_type,
+		"port_values": []
 	}
 
 	for prop in props_to_serialize:
 		d.props[prop] = get(prop)
 
+	ports.map(
+		func(port: Port) -> void:
+			d.port_values.append(port.value)
+	)
+
 	if with_meta:
 		d["meta"] = {}
 		for meta in get_meta_list():
diff --git a/classes/deck/port.gd b/classes/deck/port.gd
index 6ec1db3..61d47d5 100644
--- a/classes/deck/port.gd
+++ b/classes/deck/port.gd
@@ -9,6 +9,8 @@ var port_type: DeckNode.PortType
 var index_of_type: int
 var index: int
 
+var value: Variant: set = set_value
+
 
 func _init(
 		p_type: Deck.Types,
@@ -27,3 +29,7 @@ func _init(
 	port_type = p_port_type
 	index_of_type = p_index_of_type
 	index = p_index
+
+
+func set_value(v: Variant) -> void:
+	value = v
diff --git a/graph_node_renderer/deck_node_renderer_graph_node.gd b/graph_node_renderer/deck_node_renderer_graph_node.gd
index 7c8ab1e..ec37e2f 100644
--- a/graph_node_renderer/deck_node_renderer_graph_node.gd
+++ b/graph_node_renderer/deck_node_renderer_graph_node.gd
@@ -27,8 +27,11 @@ func _ready() -> void:
 			"field":
 				var line_edit := LineEdit.new()
 				add_child(line_edit)
+				if port.value:
+					line_edit.text = str(port.value)
 				line_edit.placeholder_text = port.label
 				port.value_callback = line_edit.get_text
+				line_edit.text_changed.connect(port.set_value)
 			_:
 				var label := Label.new()
 				add_child(label)