diff --git a/packages/validator/index.js b/packages/validator/index.js
new file mode 100644
index 0000000..057e7ff
--- /dev/null
+++ b/packages/validator/index.js
@@ -0,0 +1,5 @@
+/**
+ * Checks if given value is null or undefined or whitespace string
+ * @param {string?} value 
+ */
+exports.isNullOrWhitespace = (value) => value === undefined || value === null || !value.trim();
diff --git a/packages/validator/package.json b/packages/validator/package.json
new file mode 100644
index 0000000..9cc3b3a
--- /dev/null
+++ b/packages/validator/package.json
@@ -0,0 +1,12 @@
+{
+  "name": "@my-project/validator",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC"
+}