Simply copy the original javascript code from your webpage's source code, paste into the 'Insert Original Javascript' text box, and then click 'Optimize'. Once optimized your compressed code will appear in the 'Optimized Code' box. Simply select all the code, copy and then paste back into your webpage. And that's it! The '% Saved' box will tell you how much has been shaved off your code. See below for essential Hints & Tips