diff --git a/src/components/Preferences.vue b/src/components/Preferences.vue
index e059e11d..83751fcf 100644
--- a/src/components/Preferences.vue
+++ b/src/components/Preferences.vue
@@ -262,6 +262,7 @@ export default {
                 { code: "fr", name: "français" },
                 { code: "hr", name: "Hrvatski" },
                 { code: "it", name: "italiano" },
+                { code: "ja", name: "日本語" },
                 { code: "lt", name: "lietuvių kalba" },
                 { code: "ml", name: "മലയാളം" },
                 { code: "nb_NO", name: "Norwegian Bokmål" },
diff --git a/src/locales/hr.json b/src/locales/hr.json
index 0f27c2cb..e3586aca 100644
--- a/src/locales/hr.json
+++ b/src/locales/hr.json
@@ -4,7 +4,7 @@
         "watched": "Gledano",
         "views": "prikaza",
         "videos": "Videozapisi",
-        "ratings_disabled": "Ocjenjivanje deaktivirano"
+        "ratings_disabled": "Ocjenjivanje isključeno"
     },
     "preferences": {
         "ssl_score": "SSL ocjena",
@@ -68,7 +68,11 @@
         "loading": "Učitavanje …",
         "filter": "Filtar",
         "search": "Pretraga",
-        "view_ssl_score": "Prikaži SSL ocjenu"
+        "view_ssl_score": "Prikaži SSL ocjenu",
+        "show_replies": "Prikaži odgovore",
+        "hide_replies": "Sakrij odgovore",
+        "load_more_replies": "Prikaži više odgovora",
+        "clear_history": "Obriši povijest"
     },
     "player": {
         "watch_on": "Gledaj na"
@@ -87,6 +91,6 @@
         "username": "Korisničko ime"
     },
     "search": {
-        "did_you_mean": "Možda misliš: "
+        "did_you_mean": "Jeste li mislili: "
     }
 }
diff --git a/src/locales/ja.json b/src/locales/ja.json
new file mode 100644
index 00000000..459a8455
--- /dev/null
+++ b/src/locales/ja.json
@@ -0,0 +1,96 @@
+{
+    "titles": {
+        "trending": "トレンド",
+        "login": "ログイン",
+        "register": "新規登録",
+        "feed": "フィード",
+        "preferences": "設定",
+        "history": "履歴",
+        "subscriptions": "サブスクリプション"
+    },
+    "player": {
+        "watch_on": "Youtubeで見る"
+    },
+    "actions": {
+        "subscribe": "チャンネル登録",
+        "unsubscribe": "登録解除",
+        "view_subscriptions": "サブスクリプションを見る",
+        "sort_by": "表示順:",
+        "most_recent": "新しい順",
+        "least_recent": "古い順",
+        "channel_name_asc": "チャンネル名順",
+        "channel_name_desc": "チャンネル名逆順",
+        "back": "戻る",
+        "uses_api_from": "API使用元 ",
+        "enable_sponsorblock": "広告ブロックをオン",
+        "skip_sponsors": "広告をスキップ",
+        "skip_intro": "イントロ部分をスキップする",
+        "skip_outro": "クレジット部分をスキップする",
+        "skip_preview": "Skip プレビュー・要約をスキップ",
+        "skip_interaction": "自己宣伝シーンをスキップ",
+        "skip_self_promo": "プロモーションをスキップ",
+        "skip_non_music": "音楽以外のセクションをスキップ",
+        "theme": "テーマ",
+        "auto": "自動",
+        "dark": "ダークテーマ",
+        "light": "ライトテーマ",
+        "autoplay_video": "自動再生",
+        "audio_only": "音声のみ",
+        "default_quality": "デフォルトの画質",
+        "buffering_goal": "バッファリング目標値(秒単位)",
+        "country_selection": "国の選択",
+        "default_homepage": "デフォルトのホームページ",
+        "show_comments": "コメントを表示",
+        "minimize_description_default": "デフォルトで詳細を最小化",
+        "store_watch_history": "視聴履歴を空にする",
+        "language_selection": "言語の選択",
+        "instances_list": "インスタンス一覧",
+        "enabled_codecs": "コーデックの有効化 (複数選択)",
+        "instance_selection": "インスタンスを選択",
+        "show_more": "もっと見る",
+        "yes": "はい",
+        "no": "いいえ",
+        "export_to_json": "JSONファイルに出力",
+        "import_from_json": "JSONファイルを読み込む",
+        "loop_this_video": "ループ再生",
+        "auto_play_next_video": "自動再生",
+        "donations": "寄付",
+        "minimize_description": "最小化",
+        "show_description": "詳細",
+        "minimize_recommendations": "おすすめを最小化",
+        "show_recommendations": "おすすめを見る",
+        "disable_lbry": "ストリーミングのLBRYを無効化",
+        "enable_lbry_proxy": "LBRYプロキシをオン",
+        "view_ssl_score": "SSLスコアを見る",
+        "search": "検索",
+        "filter": "フィルター",
+        "loading": "読込中…",
+        "clear_history": "履歴を消去",
+        "show_replies": "返信を表示",
+        "hide_replies": "返信を非表示",
+        "load_more_replies": "もっと見る"
+    },
+    "comment": {
+        "pinned_by": "固定されたコメント"
+    },
+    "preferences": {
+        "instance_name": "インスタンス名",
+        "instance_locations": "インスタンスの場所",
+        "has_cdn": "CDNの有無",
+        "ssl_score": "SSLスコア"
+    },
+    "login": {
+        "username": "ユーザー名",
+        "password": "パスワード"
+    },
+    "video": {
+        "videos": "ビデオ",
+        "views": "視聴",
+        "watched": "視聴済み",
+        "sponsor_segments": "スポンサーによる広告",
+        "ratings_disabled": "評価は無効化されています"
+    },
+    "search": {
+        "did_you_mean": "もしかして: "
+    }
+}