Managed Nebula vs Twingate

Managed Nebula and Twingate approach secure connectivity from different directions. Nebula creates a peer-to-peer mesh network where hosts communicate directly. Twingate is a zero-trust network access (ZTNA) platform that brokers connections through relay infrastructure, replacing traditional VPNs with identity-aware access to specific resources.

Nebula is a fully open-source overlay networking tool that we originally built at Slack and continue to maintain at Defined Networking. It uses its own protocol built on the Noise framework to create peer-to-peer encrypted tunnels between hosts. Managed Nebula is our cloud-hosted management layer that handles certificate authorities, host configuration, and distribution, while you retain full control of your network’s data plane.

Twingate is a cloud-based ZTNA solution that provides secure access to private resources without exposing them to the public internet. It uses a combination of client software, connectors deployed in your network, and Twingate’s cloud relay infrastructure.

Below, we break down the key differences to help you decide which is right for your network.

	Managed Nebula	Twingate
Architecture	Peer-to-peer mesh	Zero-trust proxy with relays
Traffic path	Direct host-to-host	Through Twingate relay network
Authentication	Certificate-based (Nebula CA)	Identity provider-based
Firewall	Stateful with security groups	Resource-level access policies
Open source	Fully (MIT license)	Proprietary
Data path	You control entirely	Twingate relays process traffic
Use case	Full mesh networking	Remote access to specific apps
Free tier	Up to 100 hosts	Up to 5 users
Pricing	$1/host/month	Per-user pricing

These tools solve different problems.

Nebula creates a full mesh network. Every host on the network can communicate directly with every other host through encrypted peer-to-peer tunnels. This is a network-level solution: hosts get Nebula IP addresses and can run any protocol or application over the mesh. The data plane is fully decentralized. If our control plane goes offline, your existing network continues operating normally.

Twingate provides application-level access. Rather than giving users a full network, Twingate brokers connections to specific resources (applications, servers, databases) through connectors deployed in your environment and Twingate’s relay network. Users authenticate via their identity provider and are granted access only to the specific resources defined in their policy.

Nebula has a stateful packet firewall built directly into the Nebula process. Firewall rules reference groups embedded in certificates, working similarly to AWS Security Groups. Every host enforces its own firewall rules independently.

Twingate controls access at the resource level. Administrators define which users or groups can access which resources through the Twingate admin console. Access decisions are made based on identity, device posture, and context. This is a zero-trust model where access is granted per-resource rather than per-network.

With Managed Nebula, you run your own lighthouses and relays on infrastructure you control. Your network’s data plane is entirely yours. Traffic between hosts never passes through a third party. We handle the certificate authority and configuration distribution, but your operational network does not depend on us.

With Twingate, traffic flows through Twingate’s relay network and connectors deployed in your environment. Twingate’s cloud infrastructure is involved in authentication, policy enforcement, and connection brokering. Your access to private resources depends on Twingate’s service being available.

Nebula is fully open-source under the MIT license. Every component is available for inspection, modification, and self-hosting. You can run a complete Nebula network with zero dependency on us.

Twingate is entirely proprietary. The client, connectors, relay network, and admin platform are all closed-source. There is no self-hosted option for the control plane or relay infrastructure.

Managed Nebula offers simple per-host pricing:

• Free: Up to 100 hosts, 2 routes, SSO, and a simple management UI. No credit card required.
• Pro: $1/host/month with unlimited hosts, up to 100 routes, priority support, and guaranteed uptime
• Enterprise: Custom pricing with a dedicated Slack support channel and network design assistance

See our pricing page for full details, or contact sales for Enterprise.

Twingate offers a free tier for up to 5 users, with paid plans priced per user per month. Enterprise plans include additional features like device posture checks and activity logging.

Choose Managed Nebula if you want:

• A full mesh network where any host can communicate with any other host
• Direct host-to-host connectivity with no third party in the data path
• A fully open-source foundation with no proprietary dependencies
• Network-level connectivity that supports any protocol or application
• Infrastructure you control, including lighthouses and relays

Choose Twingate if you want:

• Zero-trust access to specific applications rather than full network access
• Identity and device posture-based access policies
• A managed solution that doesn’t require deploying network infrastructure
• A VPN replacement focused on remote workforce access to internal apps