diff --git a/client/public/locale/en/translation.json b/client/public/locale/en/translation.json
new file mode 100644
index 0000000..19ddf26
--- /dev/null
+++ b/client/public/locale/en/translation.json
@@ -0,0 +1,4 @@
+{
+  "message_swarm_created": "Swarm created",
+  "message_user_joined": "{{user}} joined"
+}
diff --git a/client/public/locale/fr/translation.json b/client/public/locale/fr/translation.json
new file mode 100644
index 0000000..332c3d4
--- /dev/null
+++ b/client/public/locale/fr/translation.json
@@ -0,0 +1,4 @@
+{
+  "message_swarm_created": "Le Swarm a été créé",
+  "message_user_joined": "{{user}} s'est joint"
+}