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tailscale/tailscale

Tailscale is a secure network connectivity platform that establishes encrypted, peer-to-peer connections between devices. It provides a comprehensive suite of tools for network management, including DNS routing, NAT traversal, and secure tunneling. The system supports diverse deployment environments, from Kubernetes clusters and Linux appliances to web browsers and cloud VMs, while offering modular features for file sharing, SSH access, and device posture checking.

52.8

Adequate · 29 July 2026

306k

lines of production code

Go

primary language

7

bus factor · 406 authors in all

3

measurements over time

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How it got here

2020–2022 · infrastructure and platform expansion

This period focused on modernizing the codebase with modular architectures, introducing the DERP relay protocol, and adding support for WebAssembly, Kubernetes, and cloud storage backends. It also established new tooling for licensing, debugging, and testing, while refactoring core components like the control client and health reporting.

91 changes

2023–2024 · Web client and Kubernetes operator expansion

This period focused on modernizing the web client with a React-based UI, introducing a comprehensive Kubernetes operator with extensive CRDs, and adding new tools for testing, release building, and system diagnostics.

68 changes

2025–2026 · Modular feature system and Kubernetes operator enhancements

The codebase underwent a significant architectural shift to a modular feature system, enabling conditional compilation and runtime registration of optional capabilities to reduce binary size and attack surface. Concurrently, the Kubernetes operator was enhanced with multi-tenant support, automated service advertisement, and new reconcilers for peer relay and admission control.

84 changes

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About this page

  • The description of this project is derived from its own commit history, not from its README.
  • The score is its highest published measurement, taken on 29 July 2026 at a pinned commit. It is not a live figure and does not change until the project is measured again.
  • Measured at commit d4dce80927 — the exact code this score is about.
  • Scored under rubric rubric-2026.08.18. Score the same commit under that rubric and you get the same number.
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