auto-reg
Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
⬇ Download on ModrinthReg Lightweight client-side password manager and auto-login mod for Minecraft Fabric servers with auth plugins (AuthMe, LoginSecurity, etc.).
Features Password Generator: Create and save strong passwords with customizable length and quantity. Auto-Login: Detects chat prompts and automatically sends /login or /register. Per-Server & Per-Account Storage: Separate encrypted entries for each server IP and username. AES-256-GCM Encryption: Passwords stored locally in .minecraft/config/, encrypted using your OS username as a key seed. In-Game Config: Adjust button position and login delay via ModMenu. Custom UI: Clean, modern interface built with owo-lib.
How to Use Join a server with authentication. Open chat and click the 🔐 Passwords button. Generate or enter a password (IP and username fill automatically). Save. The mod handles future logins instantly.
⚠️ Security Note Passwords are encrypted at rest but tied to your local OS user account. They are not transferable between different Windows accounts or PCs.
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- 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 Modrinth — 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.
- Ships as reg-1.0.0.jar — drop this file into the mods folder
- Download size: 146 KB
- Download link checked 13 Oct 2026 — working
These come from our own check of the pack file, not from the source page.