diff --git a/plugins/AdminTools/language/ja_JP/index.php b/plugins/AdminTools/language/ja_JP/index.php
new file mode 100644
index 000000000..ec6605317
--- /dev/null
+++ b/plugins/AdminTools/language/ja_JP/index.php
@@ -0,0 +1,7 @@
+<?php
+$url = '../';
+header( 'Request-URI: '.$url );
+header( 'Content-Location: '.$url );
+header( 'Location: '.$url );
+exit();
+?>
diff --git a/plugins/AdminTools/language/ja_JP/plugin.lang.php b/plugins/AdminTools/language/ja_JP/plugin.lang.php
new file mode 100755
index 000000000..b72fee146
--- /dev/null
+++ b/plugins/AdminTools/language/ja_JP/plugin.lang.php
@@ -0,0 +1,31 @@
+<?php
+// +-----------------------------------------------------------------------+
+// | Piwigo - a PHP based photo gallery                                    |
+// +-----------------------------------------------------------------------+
+// | Copyright(C) 2008-2014 Piwigo Team                  http://piwigo.org |
+// | Copyright(C) 2003-2008 PhpWebGallery Team    http://phpwebgallery.net |
+// | Copyright(C) 2002-2003 Pierrick LE GALL   http://le-gall.net/pierrick |
+// +-----------------------------------------------------------------------+
+// | This program is free software; you can redistribute it and/or modify  |
+// | it under the terms of the GNU General Public License as published by  |
+// | the Free Software Foundation                                          |
+// |                                                                       |
+// | This program is distributed in the hope that it will be useful, but   |
+// | WITHOUT ANY WARRANTY; without even the implied warranty of            |
+// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      |
+// | General Public License for more details.                              |
+// |                                                                       |
+// | You should have received a copy of the GNU General Public License     |
+// | along with this program; if not, write to the Free Software           |
+// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
+// | USA.                                                                  |
+// +-----------------------------------------------------------------------+
+$lang['Debug template'] = 'デバッグ　テンプレート';
+$lang['Properties page'] = 'プロパティ　ページ';
+$lang['Quick edit'] = 'クイックエディット';
+$lang['Revert'] = '元に戻す';
+$lang['Save'] = '保存';
+$lang['Saved'] = '保存しました';
+$lang['Show SQL queries'] = 'SQL クエリーを参照する';
+$lang['left'] = '左';
+$lang['right'] = '右';
\ No newline at end of file