diff --git a/more/free-programming-playgrounds.md b/more/free-programming-playgrounds.md
index 6e75771a..dbfc465b 100644
--- a/more/free-programming-playgrounds.md
+++ b/more/free-programming-playgrounds.md
@@ -142,6 +142,7 @@
 * [CodePen](https://codepen.io)
 * [CodeSandbox.io](https://codesandbox.io)
 * [Esfiddle](https://esfiddle.net)
+* [Grasshopper](https://grasshopper.app) *(Google account required)*
 * [JSBin](http://jsbin.com)
 * [JSFiddle](http://jsfiddle.net)
 * [Plunker](http://plnkr.co)