project

Tailcat

Open-source Go package and CLI released August 31, 2026 that moves encrypted bytes between machines using Tailscale's data plane, with no accounts or control plane; formerly derpcat.

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Known aliases

derpcat

Relationships

No evidence-backed relationships are recorded.

Current clusters

build1 distinct publisher

Tailcat prices Tailscale's control plane by removing it

The open-source data plane does encryption and NAT traversal in userspace with no root and no TUN device, and it stops exactly where identity, policy and reliable relays begin. That boundary is now the buy decision.

Publishers:runtimewire.com

Reality

Evidence55
Adoption15
Hype gap+18
Incentives78

Confidence52