Public SSL/TLS certificates provisioned through Amazon Certificate Manager are free. You pay only for the Amazon Web Services resources you create to run your application.

Visit the Amazon Certificate Manager resoureces page.

Get started building with Amazon Certificate Manager in the Amazon Web Services Management Console.
Amazon EC2
Try Amazon EC2 for free for up to 12 months, with 750 hours of two instances per month and 750 hours of free public IPv4 address