Tunneling services enable developers to share their work, engage with team members, and test applications without public infrastructure. Ngrok is a popular service that creates secure connections between local PCs and remote servers, allowing exposure of localhost:port to the world. Cloudflare Tunnel provides advanced security features and integration with other Cloudflare services, while Tailscale offers a mesh networking solution for creating secure private networks between devices. Each service has its advantages, but Tailscale stands out due to its extensive features, including secure remote access and homelab capabilities.