CurseForge · Minecraft mod
ReAuth
Fixes the Problem of having to restart your Client when your Session invalidates
Quick answer
Which ReAuth release matches 1.18 Forge?
ReAuth-4.0.7 Forge 1.18 targets 1.18.2, 1.18 with Forge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is ReAuth required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does ReAuth-4.0.7 Forge 1.18 need?
ReAuth-4.0.7 Forge 1.18 on 1.18 Forge. Every mod below is checked against that same setup.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add ReAuth without breaking your instance.
Built for ReAuth-4.0.7 Forge 1.18 on 1.18 Forge. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use ReAuth-4.0.7 Forge 1.18. It targets 1.18.2, 1.18 with Forge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside ReAuth-4.0.7 Forge 1.18. It opens that exact file at the source.
About this project
What does ReAuth add?
This is the Forge version of ReAuth, the Fabric version has been split off and is available here.
It is now possible to use Microsoft accounts with ReAuth in 1.7.10 through 1.19
1.4.7-1.7.2 versions may come at a later time
Overview:
- Fixes the Problem of having to restart your Client when your Session is invalid
- Shows you wether your Session is valid
- Login and retry for failed connection attempts
- Change Accounts while Minecraft is running
- Change Username for playing offline
Description:
This Mod is Clientside only - it will have no effect in a servers mod folder.
While entering your Logindata into a "random" Mod might sound risky, you are more than welcome to look at the code yourself.
To that end the Code is visible on Github; a Java-Decompiler (JD-GUI) is available here.
You are free to include this Mod in any Modpack as long as the Mod is not modified and the ModPack is distributed free of charge and in accordance to Mojangs EULA.
Features:
- The Multiplayer Screen now features a Session indicator at the top: If it's red you'll have to log in again.
- On the Login Screen you can login and optionally save your password to config. Please bear in mind that, while the credentials are encrypted before being saved to config, a malicous programms may still gain access to your password that way. The Encryption is AES based with the Key derived from the Files Location, Symlinks may be used to relocate the config or share it between instances.
- If a connection to a server fails because of an invalid session, two buttons are added to error screen. The first allows for opening the Login Screen. The other provides a quick "login and retry" functionality, when credentials are saved to config.
- From 1.7.2 onwards a hidden button is available in the MainMenu (id 17325) for use with CustomMainMenu.

Project description from CurseForge.
Pick your setup
ReAuth by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.19.2
1 loader build1.19.1
1 loader build1.19
1 loader build1.18.2
1 loader build1.18
1 loader build1.16.5
1 loader build1.16.4
1 loader build1.16.3
1 loader build1.16.2
1 loader build1.16.1
1 loader build1.16
1 loader buildShowing the newest 12 of 30 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
ReAuth versions and loaders
ReAuth-4.0.7 Forge 1.18
ReAuth-1.18-Forge-4.0.7.jar
22 Feb 2023
ReAuth-4.0.6 Forge 1.18
ReAuth-1.18-Forge-4.0.6.jar
27 Nov 2022
ReAuth-4.0.4 Forge 1.18
ReAuth-1.18-Forge-4.0.4.jar
16 Jun 2022
ReAuth-4.0.3 Forge 1.18
ReAuth-1.18-Forge-4.0.3.jar
10 Jun 2022
Looking for an older file? The official CurseForge project page is in Resources.