diff --git a/BigBoxOfJavascript.md b/BigBoxOfJavascript.md
index 35a7bb0..736cb4b 100644
--- a/BigBoxOfJavascript.md
+++ b/BigBoxOfJavascript.md
@@ -27,10 +27,14 @@
  - [Dragula](https://github.com/bevacqua/dragula) - Super simple drag & drop
 
 ## Services and tools
+### Services
  - [js.org](http://dns.js.org/) - Free subdomains for Javascript projects
+
+### Tools
  - [Regexper](http://regexper.com/) - Regular Expression visualiser
  - [Transformy](https://www.transformy.io/#/app) - Not _strictly_ javascript, but still awesome. Change the format of a list of things by typing in a simple example of what you want it to look like.
  - [vorlon.js](http://www.vorlonjs.com/) - Awesome looking remote debugger
+ - [keyCode Test Page](http://www.asquare.net/javascript/tests/KeyCode.html) - A test page that shows you the keyCode of the keys you press
 
 ## References
  - [RGraph HTML5 Canvas Reference](http://www.rgraph.net/reference/index.html) - A good HTML5 canvas reference with examples