Shape Shift is the fastest way to exchange cryptocurrencies. You can swap coins instantly with no sign-ups, no emails, and no passwords. For now you can swap between Bitcoin, Litecoin, Darkcoin, Peercoin and Dogecoin, but we suspect that soon they would be adding more cryptocurrencies as they rise in popularity.
The process is blazing fast. To do a transaction or a trade, you simply select the cryptocurrency pair of your choice, enter your receiving address, send coins to the provided deposit address, and voila, you will receive your coins in minutes. Watch the video below to see how it works, and when you are ready to swap, visit their website at www.shapeshift.io.