Deprecated. Use EasyAuth instead.
SimpleAuth
Do you have a server that you want to protect from unwanted visitors without using whitelist? Or need an extra form of authentication for players?
This mod will come in handy then - it denies moving, destroying blocks etc. for players that aren't registered / logged in. It's possible to set a global password as well, check wiki for more details.
Make sure to download the right version, depending on your server being Fabric or Forge one!
Features
(All options can be found in the config file.)
- Auto login players that have purchased Minecraft
- Online UUIDs for online players
- Disabled movement for de-authenticated players
- Disabled block interactions
- Inventory protection (item moving and dropping)
- Sessions
- Coordinate protection
- Prevents "Logged in from another location"
- And more (check wiki for details)
Translations
Check available languages.
Feel like donating? Visit donate page.
Other info
- Commands can be found on GitHub wiki
- Configuration file info
- Having issues? Please report them on GitHub issue tracker
- Living on the edge? Get latest developer builds
Libraries that the project is using:
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.16.5, 21w10a
- 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 simpleauth-1.7.7-fabric-20w10a.jar — drop this file into the mods folder
- Download size: 2.3 MB
- Download link checked 30 Aug 2026 — working
These come from our own check of the pack file, not from the source page.