diff --git a/customize.dist/translations/messages.js b/customize.dist/translations/messages.js
index 9ba0402ac..6a339a033 100644
--- a/customize.dist/translations/messages.js
+++ b/customize.dist/translations/messages.js
@@ -234,7 +234,7 @@ define(function () {
             "<li>You can import pads which were recently viewed in your browser so you have them in your account.</li>",
             "<li>If you are using a shared computer, you need to log out when you are done, closing the tab is not enough.</li>",
         "</ul>"
-    ];
+    ].join('');
 
     // Settings
     out.settings_title = "Settings";
diff --git a/www/assert/translations/main.js b/www/assert/translations/main.js
index 0324e55f2..1b1683afe 100644
--- a/www/assert/translations/main.js
+++ b/www/assert/translations/main.js
@@ -1,7 +1,8 @@
 define([
     '/bower_components/jquery/dist/jquery.min.js',
     '/common/cryptpad-common.js',
-], function (jQuery, Cryptpad) {
+    '/customize/translations/messages.js',
+], function (jQuery, Cryptpad, English) {
     var $ = window.jQuery;
 
     var $body = $('body');
@@ -11,12 +12,41 @@ define([
     };
 
     var todo = function (missing) {
+        var str = "";
+        var need = 1;
+
         if (missing.length) {
             $body.append(pre(missing.map(function (msg) {
-                return '* ' + msg;
+                var res = "";
+                var code = msg[0];
+                var key = msg[1];
+                var needed = msg[2];
+
+                if (str !== code) {
+                    if (str !== "")
+                    {
+                        res += '\n';
+                    }
+                    str = code;
+                    res += '/*\n *\n * ' + code + '\n *\n */\n\n';
+                }
+                if (need !== needed) {
+                    need = needed;
+                    if (need === 0)
+                    {
+                        res += '\n// TODO: These keys are not needed anymore and should be removed ('+ code + ')\n\n';
+                    }
+                }
+
+                res += (need ? '' : '// ') + 'out.' + key + ' = "";';
+                if (need)
+                {
+                    res += ' // ' + JSON.stringify(English[key]);
+                }
+                return res;
             }).join('\n')));
         } else {
-            $body.text('All keys are present in all translations');
+            $body.text('// All keys are present in all translations');
         }
     };
     Cryptpad.Messages._checkTranslationState(todo);