Skype is software that enables the world's conversations. Millions of individuals and businesses use Skype to make free video and voice calls, send instant messages and share files with other people on Skype. You can use Skype on whatever works best for you - on your mobile, computer or a TV with Skype on it. If you pay a little, you can do more – like call phones, access WiFi, send SMS and make group video calls.