One-Click Public Domain
Open to LAN and a shareable e4mc.link address appears in chat, ready to copy.
E4MC Mod Features
Everything E4MC Mod does, how it works under the hood, and how it compares with other ways to play Minecraft together.
Key Features
Everything E4MC Mod does is aimed at one outcome: getting your friends into your world faster.
No Port Forwarding
The tunnel connects outward, so you never touch router settings or firewall rules.
Vanilla Friends Can Join
Only the host installs the mod. Guests connect with an unmodified client.
Nearest Relay Region
Traffic routes through a relay near you to keep latency low for the whole group.
Your IP Stays Private
Friends connect to the relay domain, not to your home IP address.
Four Mod Loaders
Builds for Fabric, Quilt, Forge and NeoForge fit into almost any modpack.
Lightweight and Fast
A few megabytes with no settings screens and no measurable FPS impact.
Fully Open Source
Client and relay code are public under the MIT license for anyone to audit.
Frequent Updates
New Minecraft releases, including the 26.x line, get builds quickly.
How E4MC Mod Works
Five steps happen in the few seconds between clicking Start LAN World and your friend spawning next to you.
1
Host opens to LAN
Minecraft starts its built-in LAN server on a local port.
2
Tunnel connects out
E4MC opens an outbound QUIC connection to the nearest relay.
3
Domain is issued
The relay assigns a unique e4mc.link address and shows it in chat.
4
Friend joins
The friend's client connects to the domain like any server.
5
Relay forwards traffic
Packets travel through the tunnel to the host and back.
Pros and Cons
An honest look at where E4MC Mod shines and where another tool might suit you better.
What We Like
- Only the host installs anything
- Works behind CG-NAT and strict routers
- Hides your home IP from guests
- Open source under the MIT license
- Tiny file with no configuration
- Builds for every major loader
Keep in Mind
- World is offline when the host quits
- Domain can change between sessions
- Small latency added by the relay
- No builds for 1.16.5 or 1.12.2
- Not meant for 24/7 public servers
Who Uses E4MC Mod
Different groups, same need: getting people into one Minecraft world with no setup.
Students
Run a shared class world for a building project without asking IT to open ports.
Gamers
Jump into co-op survival with friends the moment someone says let's play.
Developers
Test your own mods in multiplayer with a teammate across town.
Business Users
Host team-building sessions or community events with no server bill.
Researchers
Share controlled Minecraft environments with study participants remotely.
Content Creators
Let viewers join a stream world for an hour without a permanent server.
Alternatives Compared
How E4MC Mod compares with other ways to play Minecraft together online. Ratings are our editorial scores.
| Software | Price | License | OS Support | Features | Rating | Pros | Cons |
|---|---|---|---|---|---|---|---|
| E4MC Mod | Free | MIT | Win, Mac, Linux | Domain tunnel, host-only install | ★ 4.8 | Zero setup | Session-only |
| Essential Mod | Free + cosmetics | Proprietary | Win, Mac, Linux | Invites, friends list, cosmetics | ★ 4.5 | Social features | Larger install |
| World Host | Free | Open source | Win, Mac, Linux | Friends list, LAN sharing | ★ 4.3 | Friend-based | Friends need mod |
| playit.gg | Free / Premium | Proprietary | Win, Mac, Linux | Tunnel agent for any server | ★ 4.4 | Works for servers | Separate app |
| Radmin VPN | Free | Proprietary | Windows | Virtual LAN network | ★ 4.0 | Simple VPN | Everyone installs |
| ZeroTier | Free tier | Source-available | All major OS | Virtual network | ★ 4.2 | Flexible | Technical setup |
| Port forwarding | Free | N/A | Any | Direct router rule | ★ 3.6 | No middleman | Exposes IP |
Detailed head-to-heads: E4MC vs Essential Mod and E4MC vs port forwarding.
Screenshots
See each step of an E4MC Mod session, from opening to LAN to friends spawning in. Click any image to enlarge.
Player Reviews
What hosts, students, teachers and creators say after using E4MC Mod.
DRVerified
Daniel R.
Weekend survival host
★★★★★
My ISP uses CG-NAT, so port forwarding never worked. E4MC gave us a working domain on the first try. Four of us played for three hours without a single disconnect.
AKVerified
Aisha K.
Computer science student
★★★★★
I test my own Fabric mod with a classmate. Being able to share a world in seconds instead of setting up a server has sped up our debugging a lot.
MTVerified
Marco T.
Modpack curator
★★★★☆
Works great on NeoForge 1.21.1 with a 180-mod pack. Friends still need the pack itself, which is expected. Minimap waypoints reset when the domain changes.
PSVerified
Priya S.
Middle school teacher
★★★★★
Our class built a city together from home. Students used the normal launcher and just pasted the address. No help desk tickets at all.
LWVerified
Lucas W.
Streamer
★★★★★
I open my world to viewers for an hour after streams. Posting the domain in chat and closing the world afterwards keeps it simple and controlled.
HBVerified
Hannah B.
Casual player
★★★★☆
Took me two tries because I first downloaded the Forge file for a Fabric profile. Once I fixed that it just worked. The install guide here helped.
Ready to Host Tonight?
Download the official jar, open to LAN and send one link.