diff --git a/build.js b/build.js
new file mode 100644
index 000000000..8c11b74a0
--- /dev/null
+++ b/build.js
@@ -0,0 +1,31 @@
+var fs = require('fs'),
+    glob = require('glob');
+
+function read(f) {
+    return JSON.parse(fs.readFileSync(f));
+}
+
+function r(f) {
+    return read(__dirname + '/data/' + f);
+}
+
+function rp(f) {
+    return r('presets/' + f);
+}
+
+fs.writeFileSync('data/presets/presets.json', JSON.stringify(
+    glob.sync(__dirname + '/data/presets/presets/**/*.json').map(function(file) {
+        return read(file);
+    })));
+
+fs.writeFileSync('data/data.js', 'iD.data = ' + JSON.stringify({
+    deprecated: r('deprecated.json'),
+    discarded: r('discarded.json'),
+    keys: r('keys.json'),
+    presets: {
+        presets: rp('presets.json'),
+        defaults: rp('defaults.json'),
+        categories: rp('categories.json'),
+        forms: rp('forms.json')
+    }
+}) + ';');