Skip to main content

TunGo: What's It All About?

Two gophers dancing tango

TunGo is a lightweight VPN designed for modern needs: fast, secure, and open-source.

Key features:​

  • 🧩 Easy to deploy & configure.
  • 🚀 High Performance — near-zero allocations on the hot path (benchmarked).
  • 📦 Tiny Memory Footprint — ≈5–15 MB RSS under load, ≈5–8 MB idle.
  • 🔒 End-to-End Encryption — X25519 (Curve25519 ECDH) for key agreement; ChaCha20-Poly1305 (AEAD) for traffic encryption; Ed25519 for authentication.
  • ⚡ Built from Scratch — no legacy, no bloat. Clean, readable Go code.
  • 🌐 IoT & Embedded Ready — optimized for small devices and constrained environments.
  • 🛡️ Open Source — AGPL-3.0-only; commercial licenses available.