diff --git a/messages/en.json b/messages/en.json
new file mode 100644
index 0000000..83c42b8
--- /dev/null
+++ b/messages/en.json
@@ -0,0 +1,31 @@
+{
+  "meta": {
+    "title": "Ombrora — Video downloader"
+  },
+  "home": {
+    "heading": "Ombrora",
+    "urlLabel": "Video URL",
+    "format": "Format",
+    "quality": "Quality",
+    "subtitles": "Download subtitles (fr, en)",
+    "advanced": "Advanced options (optional, JSON)",
+    "submit": "Download",
+    "submitting": "Sending...",
+    "errorRateLimit": "Too many submissions. Try again in an hour.",
+    "errorGeneric": "Submission error."
+  },
+  "status": {
+    "heading": "Download status",
+    "notFound": "Download not found.",
+    "loading": "Loading...",
+    "pending": "Pending",
+    "processing": "Processing...",
+    "polling": "This page refreshes automatically every 5 seconds.",
+    "ready": "Download ready",
+    "download": "Download",
+    "linkExpires": "Link valid until",
+    "failed": "Download failed.",
+    "deleted": "The file has expired and was deleted. The download is no longer available.",
+    "unknown": "Unknown status"
+  }
+}
diff --git a/messages/es.json b/messages/es.json
new file mode 100644
index 0000000..116960d
--- /dev/null
+++ b/messages/es.json
@@ -0,0 +1,31 @@
+{
+  "meta": {
+    "title": "Ombrora — Descargador de vídeos"
+  },
+  "home": {
+    "heading": "Ombrora",
+    "urlLabel": "URL del vídeo",
+    "format": "Formato",
+    "quality": "Calidad",
+    "subtitles": "Descargar subtítulos (fr, en)",
+    "advanced": "Opciones avanzadas (opcional, JSON)",
+    "submit": "Descargar",
+    "submitting": "Enviando...",
+    "errorRateLimit": "Demasiadas peticiones. Inténtalo de nuevo en una hora.",
+    "errorGeneric": "Error al enviar."
+  },
+  "status": {
+    "heading": "Estado de la descarga",
+    "notFound": "Descarga no encontrada.",
+    "loading": "Cargando...",
+    "pending": "Pendiente",
+    "processing": "En proceso...",
+    "polling": "Esta página se actualiza automáticamente cada 5 segundos.",
+    "ready": "Descarga lista",
+    "download": "Descargar",
+    "linkExpires": "Enlace válido hasta",
+    "failed": "Error en la descarga.",
+    "deleted": "El archivo ha expirado y fue eliminado. La descarga ya no está disponible.",
+    "unknown": "Estado desconocido"
+  }
+}
diff --git a/messages/fr.json b/messages/fr.json
new file mode 100644
index 0000000..e143dfb
--- /dev/null
+++ b/messages/fr.json
@@ -0,0 +1,31 @@
+{
+  "meta": {
+    "title": "Ombrora — Téléchargeur de vidéos"
+  },
+  "home": {
+    "heading": "Ombrora",
+    "urlLabel": "URL de la vidéo",
+    "format": "Format",
+    "quality": "Qualité",
+    "subtitles": "Télécharger les sous-titres (fr, en)",
+    "advanced": "Options avancées (optionnel, JSON)",
+    "submit": "Télécharger",
+    "submitting": "Envoi...",
+    "errorRateLimit": "Trop de soumissions. Réessayez dans une heure.",
+    "errorGeneric": "Erreur lors de la soumission."
+  },
+  "status": {
+    "heading": "Statut du téléchargement",
+    "notFound": "Téléchargement introuvable.",
+    "loading": "Chargement...",
+    "pending": "En attente",
+    "processing": "En cours...",
+    "polling": "Cette page se rafraîchit automatiquement toutes les 5 secondes.",
+    "ready": "Téléchargement prêt",
+    "download": "Télécharger",
+    "linkExpires": "Lien valable jusqu'au",
+    "failed": "Échec du téléchargement.",
+    "deleted": "Le fichier a expiré et a été supprimé. Le téléchargement n'est plus disponible.",
+    "unknown": "Statut inconnu"
+  }
+}
diff --git a/messages/it.json b/messages/it.json
new file mode 100644
index 0000000..81bc4b3
--- /dev/null
+++ b/messages/it.json
@@ -0,0 +1,31 @@
+{
+  "meta": {
+    "title": "Ombrora — Scaricatore di video"
+  },
+  "home": {
+    "heading": "Ombrora",
+    "urlLabel": "URL del video",
+    "format": "Formato",
+    "quality": "Qualità",
+    "subtitles": "Scarica sottotitoli (fr, en)",
+    "advanced": "Opzioni avanzate (opzionale, JSON)",
+    "submit": "Scarica",
+    "submitting": "Invio...",
+    "errorRateLimit": "Troppe richieste. Riprova tra un'ora.",
+    "errorGeneric": "Errore durante l'invio."
+  },
+  "status": {
+    "heading": "Stato del download",
+    "notFound": "Download non trovato.",
+    "loading": "Caricamento...",
+    "pending": "In attesa",
+    "processing": "In corso...",
+    "polling": "Questa pagina si aggiorna automaticamente ogni 5 secondi.",
+    "ready": "Download pronto",
+    "download": "Scarica",
+    "linkExpires": "Link valido fino al",
+    "failed": "Errore nel download.",
+    "deleted": "Il file è scaduto ed è stato eliminato. Il download non è più disponibile.",
+    "unknown": "Stato sconosciuto"
+  }
+}