diff -r 87ee9824210b -r 7ef03c2b46ab src/main.cpp
--- a/src/main.cpp	Mon Jun 20 16:59:09 2022 +0300
+++ b/src/main.cpp	Mon Jun 20 17:27:30 2022 +0300
@@ -413,6 +413,22 @@
 		saveSettings();
 		updateRecentlyOpenedDocumentsMenu();
 	};
+	const auto logMessage = [&ui](const Message& message){
+		QString messagetext = message.time.toString(QObject::tr("[hh:mm:ss]"));
+		switch(message.type) {
+		case Message::Info:
+			messagetext += QObject::tr(" [INFO] ");
+			break;
+		case Message::Warning:
+			messagetext += QObject::tr(" [WARN] ");
+			break;
+		case Message::Error:
+			messagetext += QObject::tr(" [ERR!] ");
+			break;
+		}
+		messagetext += message.text;
+		ui.messageLog->append(messagetext);
+	};
 	const auto openModelForEditing = [&](const ModelId modelId){
 		Model* model = documents.getModelById(modelId);
 		if (model != nullptr) {
@@ -626,6 +642,7 @@
 		}
 	});
 	QObject::connect(ui.actionAboutQt, &QAction::triggered, &app, &QApplication::aboutQt);
+	QObject::connect(&documents, &DocumentManager::message, logMessage);
 	mainWindow.setWindowTitle(title());
 	mainWindow.restoreGeometry(setting<Setting::MainWindowGeometry>());
 	restoreSettings();