diff --git a/li.strolch.model/src/main/java/li/strolch/model/i18n/I18nMessageToJsonVisitor.java b/li.strolch.model/src/main/java/li/strolch/model/i18n/I18nMessageToJsonVisitor.java
new file mode 100644
index 000000000..a50b0a5f5
--- /dev/null
+++ b/li.strolch.model/src/main/java/li/strolch/model/i18n/I18nMessageToJsonVisitor.java
@@ -0,0 +1,27 @@
+package li.strolch.model.i18n;
+
+import java.util.Properties;
+
+import com.google.gson.JsonObject;
+import li.strolch.utils.I18nMessage;
+import li.strolch.utils.I18nMessageVisitor;
+
+public class I18nMessageToJsonVisitor implements I18nMessageVisitor<JsonObject> {
+
+	@Override
+	public JsonObject visit(I18nMessage message) {
+		JsonObject json = new JsonObject();
+
+		json.addProperty("key", message.getKey());
+		json.addProperty("message", message.getMessage());
+
+		Properties values = message.getValues();
+		if (!values.isEmpty()) {
+			JsonObject valuesJ = new JsonObject();
+			values.stringPropertyNames().forEach(key -> valuesJ.addProperty(key, values.getProperty(key)));
+			json.add("values", valuesJ);
+		}
+
+		return json;
+	}
+}
diff --git a/li.strolch.utils/src/main/java/li/strolch/utils/I18nMessage.java b/li.strolch.utils/src/main/java/li/strolch/utils/I18nMessage.java
index 53b8b4f4a..1f48526ee 100644
--- a/li.strolch.utils/src/main/java/li/strolch/utils/I18nMessage.java
+++ b/li.strolch.utils/src/main/java/li/strolch/utils/I18nMessage.java
@@ -48,9 +48,9 @@ public class I18nMessage {
 		return formatMessage();
 	}
 
-	public I18nMessage value(String key, String value) {
+	public I18nMessage value(String key, Object value) {
 		DBC.INTERIM.assertNotEmpty("key must be set!", key);
-		this.values.setProperty(key, value == null ? "(null)" : value);
+		this.values.setProperty(key, value == null ? "(null)" : value.toString());
 		return this;
 	}
 
@@ -69,6 +69,10 @@ public class I18nMessage {
 		return this.message;
 	}
 
+	public <T> T accept(I18nMessageVisitor<T> visitor) {
+		return visitor.visit(this);
+	}
+
 	@Override
 	public int hashCode() {
 		final int prime = 31;
diff --git a/li.strolch.utils/src/main/java/li/strolch/utils/I18nMessageVisitor.java b/li.strolch.utils/src/main/java/li/strolch/utils/I18nMessageVisitor.java
new file mode 100644
index 000000000..092a1bed1
--- /dev/null
+++ b/li.strolch.utils/src/main/java/li/strolch/utils/I18nMessageVisitor.java
@@ -0,0 +1,6 @@
+package li.strolch.utils;
+
+public interface I18nMessageVisitor<T> {
+
+	T visit(I18nMessage message);
+}