nSMS

nSMS is a very small software program that allows you to easily send text messages from your computer using a gateway like email-to-SMS. The interface of the program is very simple and therefore easy to use. In the top bar of the main window, you can see the buttons that correspond to "Settings", "Contacts", "Recipient" and "Send". At the bottom, there is a text box with a small progress bar that shows you when the 160 character limit has been exceeded.