ZeroTier

Provides a software-defined network overlay that connects devices, clouds, and networks across locations with end-to-end encryption and peer-to-peer connectivity, reducing complexity and improving security compared to hardware-defined networks and VPNs. Serves developers, IT and operations teams in businesses ranging from startups to enterprises across industries such as defense, manufacturing, government, and IoT. Delivered as a SaaS and open-source platform with API access, including a post-quantum option deployable in air-gapped environments with policy enforced at endpoints.

Key features

• Software-defined network overlay
• Connects devices, clouds and networks
• Cryptographic identity authentication
• End-to-end traffic encryption
• Peer-to-peer connectivity
• Centrally defined globally enforced policy
• No hardware or appliances required
• Replaces VPN configurations
• Policy enforced at every endpoint
• Post-quantum cryptography ML-KEM-1024
• Air-gapped environment deployment
• Virtual overlay on existing infrastructure