SimpleAuth: Server Login System
Java mod listed for Minecraft 1.19–1.20. Download on the author's site.
Lightweight authentication and login system for Minecraft servers with secure player verification and configurable access control.
⬇ Download on CurseForge
SimpleAuth is a lightweight and secure login and authentication system for Minecraft multiplayer servers.
It allows server owners to protect their community by requiring players to register and log in before playing, preventing unauthorized access and account sharing.
This makes SimpleAuth one of the most reliable server-side authentication mods for Minecraft.
🔐 Server Login System
SimpleAuth introduces a complete login and registration system for multiplayer servers:
- Player registration with password (/register)
- Secure login system (/login)
- Configurable authentication rules
- Server-side account protection
🛡️ Server Security Features
SimpleAuth helps protect your server with:
- Login requirement before playing
- Movement and interaction restriction until authenticated
- Optional blindness effect for unauthenticated players
- Anti-bruteforce protection with failed login limits
- Optional auto-kick after repeated failed attempts
🌐 Multi-language Support
Supports multiple languages: English, Spanish, French, Polish, Russian, Ukrainian
Language can be changed via:
/simpleauth language
🖥️ Optional GUI Login (v5.0+)
SimpleAuth includes an optional graphical login interface for easier authentication (client required).
Features:
- Clean login/register UI
- Live countdown timer
- Error handling without forced kicks
⚙️ Commands
/register <password>/login <password>/changepassword <old> <new>/forcelogin <player>/simpleauth language/simpleauth help
🎯 Why SimpleAuth?
Most Minecraft servers lack proper authentication systems.
SimpleAuth solves this by providing a simple, secure, and configurable login system that improves server protection without requiring external plugins.
💡 Lightweight & Server Friendly
Designed specifically for multiplayer servers with minimal performance impact and full configurability.
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.20.1, 1.19.4, 1.19.2
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
SimpleAuth: Server Login System is a free Minecraft Java mod. Compatible with Minecraft 1.20.1, 1.19.4, 1.19.2, 1.19.1 and newer. Downloaded 6,116 times (via CurseForge). Download it and open it directly in the game.