diff --git a/main/ui/src/main/resources/i18n/strings_ja.properties b/main/ui/src/main/resources/i18n/strings_ja.properties
new file mode 100644
index 000000000..4dec69883
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+++ b/main/ui/src/main/resources/i18n/strings_ja.properties
@@ -0,0 +1,56 @@
+# Locale Specific CSS files such as CJK, RTL,...
+
+# Generics
+## Button
+generic.button.apply=適用
+generic.button.back=戻る
+generic.button.cancel=キャンセル
+generic.button.next=次へ
+
+# Tray Menu
+traymenu.showPreferencesWindow=基本設定
+
+# Add Vault Wizard
+addvaultwizard.title=金庫を追加
+## Welcome
+addvaultwizard.welcome.newButton=新しい金庫を作成
+addvaultwizard.welcome.existingButton=既存の金庫を開く
+## New
+addvaultwizard.new.nameInstruction=金庫の名前を入力してください
+addvaultwizard.new.namePrompt=金庫の名前
+## Existing
+## Success
+
+# Remove Vault
+
+# Change Password
+
+# Forget Password
+
+# Unlock
+## Success
+
+# Migration
+## Start
+## Run
+## Sucess
+
+# Preferences
+preferences.title=基本設定
+## General
+## Volume
+## Updates
+
+# Main Window
+main.preferencesBtn.tooltip=基本設定
+## Vault List
+main.vaultlist.addVaultBtn=金庫を追加
+## Vault Detail
+
+# Wrong File Alert
+
+# Vault Options
+
+# Misc
+
+# Quit