Eaglercraft-server -

Eaglercraft-server is a lightweight, open-source Minecraft server solution designed to provide a seamless and efficient gaming experience. Built on top of the popular Eaglercraft project, eaglercraft-server aims to deliver a robust and scalable server infrastructure for Minecraft enthusiasts.

You cannot join an eaglercraft-server with the official Minecraft launcher. You need the Eaglercraft client.

Join: The client downloads the world chunk-by-chunk. That’s it.

| Problem | Solution | |--------|----------| | "Invalid payload" | Make sure you’re using the exact same version of Eaglercraft client as the server (1.8.8). | | Connection refused | Check firewall: allow Java inbound on port 8081 (TCP). | | Whitelist not working | Use lower-case usernames exactly as typed in the client. | | Server lags | Assign more RAM: java -Xmx2G -jar EaglercraftServer.jar |

Cause: Your browser is blocking insecure WebSockets. Fix: If the server is ws://, you cannot be on an https:// webpage. Either downgrade the client page to http:// or upgrade the server to wss:// using a reverse proxy. eaglercraft-server

Start the server again. You’ll see a line like:

Listening on ws://0.0.0.0:8081/

To connect, your friends open Eaglercraft (e.g., the official client page at eaglercraft.com/launch) and enter: Join: The client downloads the world chunk-by-chunk

ws://your-local-ip:8081/

🔴 BUT that only works on your LAN. To play over the internet without port forwarding:

Before diving into the server, it's crucial to understand what Eaglercraft is not. It is not a mod. It is not a plugin for Bukkit or Spigot. It is not an official Mojang product. | Problem | Solution | |--------|----------| | "Invalid

Eaglercraft is a browser-based reimplementation of Minecraft’s client. Written in JavaScript and WebAssembly, it translates Java game logic into something your browser’s sandbox can execute. The original project, spearheaded by developer lax1dude (with community forks like EaglercraftX), reverse-engineered Minecraft protocol 1.8.8 and rebuilt the rendering engine using WebGL.

The result? A nearly indistinguishable Minecraft experience that runs at 60+ FPS on a Chromebook, a school-issued laptop, or even an iPad with a keyboard.