opentunnel — public urls for anything

Opentunnel is a CLI and SDK tool that creates end-to-end encrypted public URLs to expose local applications securely over the internet. It generates random hostnames with private keys that never leave the user's machine, ensuring that the relay server cannot decrypt the traffic. While the public tunnel hostname is discoverable through certificate transparency logs, individual route names remain private but not secret, so authentication should be handled within the tunneled services. This setup allows secure and private access to local apps from anywhere without exposing sensitive data through the relay.