Tailscale is a mesh networking tool that replaces traditional VPNs by creating encrypted connections between devices without requiring a central server. It handles NAT traversal automatically, works across clouds and on-premises infrastructure, and uses identity-based access control instead of managing certificates manually.

• Tailscale creates encrypted mesh connections between devices without a central server, automatically handling NAT traversal issues (double NAT, blocked ports) that break traditional VPN/WireGuard setups
• It flips default network security posture—devices are private by default and must be deliberately exposed, rather than exposed by default and needing to be locked down
• Real-world use cases span managing home Kubernetes clusters remotely, connecting field robots, and multi-cloud/on-prem access, all set up in minutes with minimal config
• Compares favorably to OpenVPN through fixed IPs, DNS support, SSO-backed GUI access controls, and scaling to many devices without manual key/certificate management