This mod makes your local (LAN) Minecraft server visible online without manual port forwarding.
Open2Online seamlessly integrates with Minecraft's built-in "Open to LAN" feature and adds automatic internet exposure using UPnP (Universal Plug and Play), NAT-PMP, or PCP protocols. This opens the required port on your router dynamically.
| Open2Online | Loader | Page |
|---|---|---|
| 1.4.0 and newer | Fabric, NeoForge | Modrinth |
| 1.0.3 and older | Forge | CurseForge |
New versions are released on Modrinth. The old Forge builds stay on CurseForge and are no longer updated.
Every Minecraft version has its own branch.
Everything goes to issues - a bug, a feature you want, a rough edge worth smoothing.
- WeUPnP: https://github.com/bitletorg/weupnp
- WaifUPnP: https://github.com/adolfintel/WaifUPnP
- PortMapper: https://github.com/offbynull/portmapper