diff --git a/locales/ca.json b/locales/ca.json
new file mode 100644
index 000000000..1fa7cc1f3
--- /dev/null
+++ b/locales/ca.json
@@ -0,0 +1,103 @@
+{
+    "oldest": "més antic",
+    "Yes": "Sí",
+    "preferences_quality_label": "Qualitat de vídeo preferida: ",
+    "newest": "més nou",
+    "No": "No",
+    "Google verification code": "Codi de verificació de Google",
+    "User ID": "ID d'usuari",
+    "Preferences": "Preferències",
+    "Dark mode: ": "Mode fosc: ",
+    "dark": "fosc",
+    "light": "clar",
+    "published": "publicat",
+    "published - reverse": "publicat - invers",
+    "alphabetically": "alfabèticament",
+    "alphabetically - reverse": "alfabèticament - invers",
+    "channel name - reverse": "nom del canal - invers",
+    "preferences_category_data": "Preferències de dades",
+    "Delete account": "Elimina compte",
+    "Save preferences": "Guarda preferències",
+    "Private": "Privat",
+    "Show more": "Mostra'n més",
+    "Show less": "Mostra'n menys",
+    "Hide replies": "Amaga respostes",
+    "Arabic": "Àrab",
+    "Armenian": "Armeni",
+    "Basque": "Basc",
+    "Filipino": "Filipí",
+    "Finnish": "Finès",
+    "German": "Alemany",
+    "Greek": "Grec",
+    "Hungarian": "Hongarès",
+    "Icelandic": "Islandès",
+    "Italian": "Italià",
+    "Japanese": "Japonès",
+    "Korean": "Coreà",
+    "Kurdish": "Kurd",
+    "Lithuanian": "Lituà",
+    "Luxembourgish": "Luxemburguès",
+    "Macedonian": "Macedoni",
+    "Polish": "Polonès",
+    "Portuguese": "Portuguès",
+    "Romanian": "Romanès",
+    "Russian": "Rus",
+    "Serbian": "Serbi",
+    "Spanish (Latin America)": "Castellà (Amèrica llatina)",
+    "Turkish": "Turc",
+    "Ukrainian": "Ucraïnès",
+    "preferences_locale_label": "Idioma: ",
+    "Gaming": "Jocs",
+    "Movies": "Películes",
+    "Download": "Descarrega",
+    "Download as: ": "Descarrega com: ",
+    "Videos": "Vídeos",
+    "content_type": "Tipus",
+    "duration": "Duració",
+    "sort": "Ordena per",
+    "week": "Aquesta setmana",
+    "month": "Aquest mes",
+    "year": "Aquest any",
+    "video": "Vídeo",
+    "channel": "Canal",
+    "short": "Curt (< 4 minuts)",
+    "long": "Llarg (> 20 minuts)",
+    "Current version: ": "Versió actual: ",
+    "Malay": "Malai",
+    "Persian": "Persa",
+    "Slovak": "Eslovac",
+    "Search": "Busca",
+    "Show annotations": "Mostra anotacions",
+    "preferences_region_label": "País del contingut: ",
+    "preferences_sort_label": "Ordena vídeos per: ",
+    "Import/export": "Importa/exporta",
+    "channel name": "nom del canal",
+    "Title": "Títol",
+    "Belarusian": "Bielorús",
+    "Enable web notifications": "Activa notificacions web",
+    "search": "busca",
+    "Catalan": "Català",
+    "Croatian": "Croat",
+    "preferences_category_admin": "Preferències d'administrador",
+    "Hide annotations": "Amaga anotacions",
+    "Show replies": "Mostra respostes",
+    "Bulgarian": "Búlgar",
+    "Albanian": "Albanès",
+    "French": "Francès",
+    "Irish": "Irlandès",
+    "Maltese": "Maltès",
+    "Danish": "Danès",
+    "Galician": "Gallec",
+    "Hebrew": "Hebreu",
+    "Indonesian": "Indonesi",
+    "Spanish": "Castellà",
+    "Vietnamese": "Vietnamita",
+    "News": "Notícies",
+    "show": "Mostra",
+    "footer_documentation": "Documentació",
+    "Thai": "Tailandès",
+    "Music": "Música",
+    "relevance": "Rellevància",
+    "hour": "Última hora",
+    "today": "Avui"
+}