auto-reg
by 6uxoi_Angel
auto-reg is a Fabric client-side password manager that stores login credentials for auth-enabled Minecraft servers and fills them in automatically on join.
What it does
Players who join servers that use authentication plugins such as AuthMe or LoginSecurity can have their passwords saved and submitted on connect. Only the client needs the mod, so servers run without it. Passwords are encrypted at rest and tied to the local operating system user account, and the saved data can be moved between different Windows accounts and PCs. Files are published for 1.21.1 only, and the mod is released under All rights reserved, so it is not open source, although its source code is public.
Key features
Automatic login
Saved credentials are submitted when the player connects to a configured authentication server.
Encrypted password storage
Passwords are encrypted at rest and bound to the local OS user account.
Portable saved data
The stored login data can be transferred between different Windows accounts and PCs.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Questions
Does auto-reg need to be installed on the server?
Which plugins does auto-reg work with?
Is the saved password safe if the PC is shared?
In the catalog
auto-reg is one of 4,058 Storage mods on ModsFinder, and one of 2,474 Storage mods for Fabric. 32,366 mods support Minecraft 1.21.1.
Similar mods
What the author says
Reg 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…
Official listing
- Modrinth page
- modrinth.com/mod/auto-reg
- Owner
- 6uxoi_Angel
- Published
- 2026-07-15
- Updated on Modrinth
- 2026-07-15
- Facts verified
- 2026-10-15