Adsense code converter or parser tool simply transforms your Adsense code into understandable posting code for adding them into your posts or other inner sections.
Many places do not require you to convert your code but if you feel that your code being accepted and after its is saved the ads are not showing you might have to convert the code using the right hand side tool to make it compatible.
So now just add your code your original Adsense code into the box and press Convert now copy the converted code and paste it in your blog posts or anywhere you wanted to show your advertisement.