diff --git a/scripts/unused-translations.js b/scripts/unused-translations.js
new file mode 100644
index 000000000..ac925b327
--- /dev/null
+++ b/scripts/unused-translations.js
@@ -0,0 +1,82 @@
+var Messages = require("../www/common/translations/messages.json");
+var Exec = require("child_process").exec;
+
+var ignoreLines = function (source, pattern) {
+    if (!pattern.test(source)) { return source; }
+    return source.split('\n')
+        .map(function (line) {
+            if (pattern.test(line)) { return ''; }
+            return line;
+        })
+        .filter(Boolean)
+        .join("\n");
+};
+
+var grep = function (pattern, cb) {
+    var command = 'git grep ' + pattern + " -- ':/' ':(exclude)www/common/translations/*'";
+    Exec(command, function (err, stdout, stderr) {
+        if (err && err.code === 1 && err.killed === false) {
+            return cb(void 0, true, "NOT_FOUND");
+        }
+        stdout = ignoreLines(stdout, /^CHANGELOG\.md:/);
+        stdout = ignoreLines(stdout, /^LICENSE:/);
+        stdout = ignoreLines(stdout, /\/onlyoffice/);
+        stdout = ignoreLines(stdout, /package.*\.json/);
+        stdout = ignoreLines(stdout, /package\.json/);
+        stdout = ignoreLines(stdout, /chainpad\.dist\.js/);
+        stdout = ignoreLines(stdout, /MathJax\.js/);
+        stdout = ignoreLines(stdout, /Binary file/);
+        //stdout = stdout .replace(/^CHANGELOG\.md:.*$/g, '') .replace(/^LICENSE:.*$/g, '');
+
+        if (err) {
+            if (err.code === 'ERR_CHILD_PROCESS_STDIO_MAXBUFFER') {
+                return cb(void 0, true, 'TOO_MUCH');
+            }
+            return void cb(err);
+        }
+        if (/data\-localization/.test(stdout)) {
+            return cb(void 0, true, "DATA_LOCALIZATION");
+        }
+        if (/(Messages|Msg|messages)\./.test(stdout)) {
+            return cb(void 0, false);
+        }
+        if (/_cat_/.test(stdout)) {
+            return cb(void 0, true, 'POSSIBLE_CATEGORY');
+        }
+
+        //console.log(pattern, arguments);
+        cb(void 0, true, 'OTHER', stdout);
+    });
+};
+
+var keys = Object.keys(Messages);
+var total = keys.length;
+
+var limit = total;
+
+var next = function () {
+    var key = keys[0];
+    if (!key) { return void console.log("[DONE]"); }
+    keys.shift();
+
+    if (!limit--) { return void console.log("[DONE]"); }
+
+    grep(key, function (err, flagged, reason, output) {
+        if (err) {
+            return;
+            console.error("[%s]", key, err);
+            console.log();
+        } else if (!flagged) {
+
+        } else if (reason === 'OTHER') {
+            console.log('[%s] flagged for [OTHER]', key, output);
+            console.log();
+        } else {
+            console.log("[%s] flagged for [%s]", key, reason || '???');
+        }
+
+        next();
+    });
+};
+
+next();