diff --git a/js/kiri-lang.js b/js/kiri-lang.js
new file mode 100644
index 00000000..7b176064
--- /dev/null
+++ b/js/kiri-lang.js
@@ -0,0 +1,51 @@
+/** Copyright 2014-2019 Stewart Allen -- All Rights Reserved */
+
+"use strict";
+
+var gs_kiri_lang = exports;
+
+(function() {
+
+    if (!self.kiri) self.kiri = {};
+    if (self.kiri.lang) return;
+
+    var KIRI = self.kiri,
+        LANG = self.kiri.lang = {};
+
+    LANG.set = (key) => {
+        if (LANG[key]) {
+            let map = LANG[key];
+            // default to EN values when missing
+            Object.keys(LANG.en).forEach(key => {
+                if (!map[key]) {
+                    map[key] = LANG.en[key];
+                }
+            });
+            // update current map from chosen map
+            Object.keys(map).forEach(key => {
+                LANG.current[key] = map[key];
+            });
+        }
+    }
+
+    // english. other language maps will defer to english
+    // map for any missing key/value pairs
+    LANG.en = {
+        version:        "version",
+        dev_name:       "name",
+        dev_filament:   "filament",
+        dev_fil_desc:   "diameter in millimeters",
+        dev_nozzle:     "nozzle",
+        dev_noz_desc:   "diameter in millimeters"
+    };
+
+    LANG.test = {
+        version:        "_version_",
+        dev_name:       "_name_"
+    };
+
+    LANG.current = {};
+
+    LANG.set('en');
+
+})();
diff --git a/js/kiri.js b/js/kiri.js
index fb7c2f7a..9ccbb9b8 100644
--- a/js/kiri.js
+++ b/js/kiri.js
@@ -459,6 +459,7 @@ self.kiri.license = exports.LICENSE;
         BASE = SELF.base,
         UTIL = BASE.util,
         DBUG = BASE.debug,
+        LANG = KIRI.lang.current,
         // ---------------
         WIN    = SELF.window,
         DOC    = SELF.document,
@@ -518,12 +519,14 @@ self.kiri.license = exports.LICENSE;
         local = SETUP.local,
         mouseMoved = false,
         camStock = null,
-        camTopZ = 0,
-        alerts = [ [ "version " + kiri.version, Date.now() ] ];
+        camTopZ = 0;
 
     DBUG.enable();
 
     if (SETUP.rm) renderMode = parseInt(SETUP.rm[0]);
+    if (SETUP.ln) KIRI.lang.set(SETUP.ln[0]);
+
+    var alerts = [ [ `${LANG.version} ${kiri.version}`, Date.now() ] ];
 
     KIRI.api = {
         ui : UI,
@@ -2296,9 +2299,9 @@ self.kiri.license = exports.LICENSE;
             deviceSelect: $('device-select'),
 
             device: UC.newGroup("device", $('device')),
-            deviceName: UC.newInput("name", {size:20}),
-            setDeviceFilament: UC.newInput("filament", {title:"diameter in millimeters", convert:UC.toFloat, modes:FDM}),
-            setDeviceNozzle: UC.newInput("nozzle", {title:"diameter in millimeters", convert:UC.toFloat, modes:FDM}),
+            deviceName: UC.newInput(LANG.dev_name, {size:20}),
+            setDeviceFilament: UC.newInput(LANG.dev_filament, {title:LANG.dev_fil_desc, convert:UC.toFloat, modes:FDM}),
+            setDeviceNozzle: UC.newInput(LANG.dev_nozzle, {title:LANG.dev_noz_desc, convert:UC.toFloat, modes:FDM}),
             setDeviceWidth: UC.newInput("bed width", {title:"millimeters", convert:UC.toInt}),
             setDeviceDepth: UC.newInput("bed depth", {title:"millimeters", convert:UC.toInt}),
             setDeviceHeight: UC.newInput("max height", {title:"max build height\nin millimeters", convert:UC.toInt, modes:FDM}),
diff --git a/js/web-server.js b/js/web-server.js
index 2a3ed769..2ddbf2ae 100644
--- a/js/web-server.js
+++ b/js/web-server.js
@@ -754,6 +754,7 @@ var ver = require('../js/license.js'),
             "moto-load-stl",
             "moto-db",
             "moto-ui",
+            "kiri-lang",
             "kiri-db",
             "kiri-slice",
             "kiri-slicer",
@@ -799,6 +800,7 @@ var ver = require('../js/license.js'),
             "geo-polygon",
             "geo-polygons",
             "geo-gyroid",
+            "kiri-lang",
             "kiri-slice",
             "kiri-slicer",
             "kiri-driver-fdm",