Auto Login
by lyuwenhan
Auto Login is a Fabric client mod that sends the password to authentication servers as soon as a player joins, so the login prompt is handled without typing.
What it does
When a player joins a server that uses an authentication plugin, the mod detects the login prompt and sends the stored password automatically. The password is saved on the local machine, encrypted with AES-GCM under a random device key, so the plain text is not written to the config file. A manual command can trigger a login attempt, which serves as a fallback when automatic login fails or needs testing.
The mod is released under the MIT License and is open source, with its source code and issue tracker public. It covers game versions 1.21.11 – 26.3 and needs a server-side plugin mod, such as EasyAuth or AuthMe, on the server it connects to. The client only handles the login step, so servers without such a plugin gain nothing from it.
Key features
Automatic login
After joining, the mod sends the login command to authentication servers without any input from the player.
Encrypted local password
The password is stored on the device encrypted with AES-GCM and a random device key, rather than as readable text.
Manual login command
A command runs a login attempt on demand, useful as a fallback or while testing a server's login flow.
Packet-level login handling
The mod intercepts packets and hooks the UI to carry out the authentication step on the client side.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Playing on authenticated servers
Players who join servers running EasyAuth or AuthMe can skip retyping the password on every connection.
Who it’s for: Players who connect to multiplayer servers that use a password login plugin and want the login step handled automatically on their own computer.
How it compares
AutoAuthme is a Fabric client mod for 26.2, released under the MIT License and not open source. EasyAuth is a Fabric and Quilt server mod for 1.17 – 26.3 that runs server-side only, so it is the plugin side of the same login flow and not a client alternative. LocalTime is a Fabric client mod for 1.21.1 – 26.2 under the GNU General Public License v3.0 only, and it does not handle logins at all.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Auto Login | Fabric | 1.21.11 – 26.3 | Client-side only | 2026-09-21 |
| AutoAuthme | Fabric | 26.2 | Client-side only | 2026-08-20 |
| EasyAuth | Fabric and Quilt | 1.17 – 26.3 | Server-side only | 2026-09-19 |
| LocalTime | Fabric | 1.21.1 – 26.2 | Client-side only | 2026-07-29 |
Questions
Does Auto Login need a plugin on the server?
Is the saved password stored as plain text?
Which game versions does Auto Login support?
In the catalog
Auto Login is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 8,071 mods support Minecraft 26.3.
More from lyuwenhan
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What the author says
A client-side Fabric mod that automatically logs you into authentication-based Minecraft servers (e.g. EasyAuth, AuthMe) using a locally encrypted password. This mod runs entirely on the client and does not modify any server behavior.
Official listing
- Modrinth page
- modrinth.com/mod/autologinmod
- Owner
- lyuwenhan
- Published
- 2026-01-19
- Updated on Modrinth
- 2026-09-21
- Facts verified
- 2026-10-15