diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index e97d019e..76e00228 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -254,3 +254,9 @@ INSTITUTE/COMPANY :  KLE Technological University<br>
 DOMAIN/LANGUGAE : Java<br>
 --------------
 
+-----
+NAME : Tadas Vosylius <br>
+GITHUB : [tadasvosylius](https://github.com/tadasvosylius)<br>
+INSTITUTE/COMPANY : None<br>
+DOMAIN/LANGUGAE : JavaScript<br>
+------
diff --git a/NodeJS/cli-calculator/README.md b/NodeJS/cli-calculator/README.md
new file mode 100644
index 00000000..e4ebc792
--- /dev/null
+++ b/NodeJS/cli-calculator/README.md
@@ -0,0 +1,7 @@
+## NodeJS CLI Calculator
+### Usage:
+To run program, type in terminal `node app.js [operation] [arg1] [arg2]`. 
+
+Available operations: `add, substract, divide, multiply`
+
+Example: `node app.js substract 23 13`
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diff --git a/NodeJS/cli-calculator/app.js b/NodeJS/cli-calculator/app.js
new file mode 100644
index 00000000..5e8c21cd
--- /dev/null
+++ b/NodeJS/cli-calculator/app.js
@@ -0,0 +1,30 @@
+const argv = process.argv.slice(2);
+const operation = argv[0];
+const operators = [];
+
+operators[0] = parseInt(argv[1]);
+operators[1] = parseInt(argv[2]);
+
+switch (operation) {
+  case 'add':
+    outputToConsole(operation, '+', operators);
+    console.log('Result: ' + (operators[0] + operators[1]));
+    break;
+  case 'subtract':
+    outputToConsole(operation, '-', operators);
+    console.log('Result: ' + (operators[0] - operators[1]));
+    break;
+  case 'multiply':
+    outputToConsole(operation, '*', operators);
+    console.log('Result: ' + (operators[0] * operators[1]));
+    break;
+  case 'divide':
+    outputToConsole(operation, '/', operators);
+    console.log('Result: ' + (operators[0] / operators[1]));
+    break;
+}
+
+function outputToConsole(operation, operationSymbol, operators) {
+  console.log('Operation: ' + operation);
+  console.log('Condition: ' + operators[0] + ' ' + operationSymbol + ' ' + operators[1]);
+}
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