ZeroTier

ZeroTier is a software-defined networking platform that creates secure, virtual Ethernet networks over the internet. It enables devices across data centers, clouds, offices, and remote locations to appear as if they are on the same local network, regardless of physical location or underlying infrastructure. Its primary purpose is to simplify secure connectivity for distributed systems, remote teams, and hybrid environments without requiring complex VPN setups or specialized hardware.

Key features include fast, encrypted peer-to-peer connections using modern cryptography, automatic NAT traversal, and support for IPv4 and IPv6. ZeroTier provides centralized, web-based network orchestration, allowing administrators to define access rules, manage members, and segment traffic using a declarative rules engine. It runs on major operating systems (Windows, macOS, Linux, iOS, Android) as well as on routers and embedded devices, making it suitable for both IT and IoT deployments. The platform can operate using ZeroTier’s hosted controllers or self-hosted controllers for organizations that require full control over their infrastructure.