Fern
Disclaimer!
- The project is not at all finished and is still in early development.
- Error Handling speed and other things are not yet implemented.
- Most things are guaranteed to change in future updates.
- Don't expect this to replace other permission systems yet.
Overview
Fern is a JSON based Permission System made to be easy to use and implement, with different data storage methoads.
This project does not include any commands or utilities to manage permissions, it is only the backend API to store and retrieve permissions. But some can be done by editing files directly.
Setup
- Add Fern to your server.
- Run Server And Allow Fern To Generate Default Config Files.
- Stop The Server.
- Select a data type using the table below in config.json
- Start The Server Again.
Data Storage Types
| Type | Description |
|---|---|
0 |
Stores Data With Permissions In Player (Player {Assigned Perms}) |
1 |
Stores Data With Players In Permissions (Permission {Players Assigned}) |
And data does not port to new data type yet.
Usage
Build.Gradle
repositories {
maven {
url = "https://api.modrinth.com/maven"
}
}
dependencies {
modImplementation "maven.modrinth:fernapi:${fern_version}"
}
properties.gradle
fern_version=0.5.1
All versions below the latest may be unstable.
What's Next
- Utility Mod
- WIKI
- Using Jackson for speed
- Error Handling
- Support for more platforms
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.10
- 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.
Verified by MCModsHub
- Ships as fern-0.5.1.jar — drop this file into the mods folder
- Download size: 814 KB
- Download link checked 10 Sept 2026 — working
These come from our own check of the pack file, not from the source page.
