TunnelCraft is a modern networking solution for Minecraft that allows players to join servers without port forwarding, without exposing a public IP, and without any router configuration.
TunnelCraft works as a Spigot plugin on the server and as a Fabric or NeoForge mod on the client.
A client-side mod is always required — the tunneling protocol is not compatible with vanilla clients.
Instead of using direct TCP connections, TunnelCraft forwards the entire Minecraft protocol through a secure, WebSocket-based relay network. Every server automatically receives a persistent tunnel address (e.g., plpx-abc123) that players can use to join instantly.
All packet types are supported, including:
• login and authentication
• world data & chunks
• entities and block updates
• mod/plugin traffic
Players simply enter the tunnel ID and connect immediately — even on networks where port forwarding is blocked or impossible.
TunnelCraft is free to use and licensed under CC BY-NC 4.0, allowing sharing and modification while prohibiting commercial use.
Download on Modrinth:
by Revolutionary_Car272