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ArbiterLib

👜 ⟢ Minecraft datapack framework with crafting, blocks, tags, items, and other utils!

FabricNeoForgeDatapack
Loaders
FabricNeoForgeDatapack
Downloads on Modrinth
1.7K
Followers on Modrinth
1
versions
35
Updated
September 25, 2026Sep 25
Published
in 2026
This is a library — other mods need it, and it adds nothing to the game by itselfRequired by 2 mods. Download it if another mod needs it.
Header image · swipe

At a glance

A library: other mods need it — required by 2 mods
Runs on Fabric, NeoForge and Datapack
For Minecraft 26.1–26.1.2, 26.3 …
Needed on the server; optional in the game
Latest version — r30+mod from September 25, 2026
License MIT — free
Where it's needed
In gameoptionalOn serverrequired

Needed on the server; optional in the game

Game versions1.21.9–1.21.10, 26.1–26.1.2, 26.3

Project banner

ArbiterLib ⚙️

Arbiter is a Minecraft datapack framework library, your tool for quicker implementation of things you wish to make. It makes things easier for those who wish to use it!

It is recommended to follow this project (❤️) or join the Discord to receive updates about the latest versions (which are always required)!

What it has to offer

  • Crafting: a workbench and a smeltery, mimicking vanilla blocks.

JEI Integration for all Arbiter recipes and items via ArbiterJEI

  • Commands for quick actions like applying y-motion, quick heads, instakills, etc.

  • Block registry and centralized ticks. Placement logic and removal handled by Arbiter!

  • Centralized player data storage, via ID in scoreboard and data storage, for storing and retrieving anything persistent

These are not new features, there are already libraries that make blocks or add crafting stations. But Arbiter does it all in one place, and Arbiter wants to do them better than anything else.

Feature requests and issues are more than welcome! Any size or complexity.

Using Arbiter

If you wish to use ArbiterLib for your project, please read the full Readme file on GitHub

Check out the Template Project for Arbiter to get started! All requirements in implementation are already there. It's always kept up-to-date with the features of this repo.

Afterword

See the GitHub for source code, in-depth explanations of the features, and issues.

Join the Discord to chat about your projects you may develop with this, about datapacks that use this framework, or anything else in the world!

Arbiter could make things easier for you, but could also make them take more time depending on how you work. You're free to use it or not use it!

Thank you for reading.

FAQ

How to install ArbiterLib?

Install Fabric for your Minecraft version, download ArbiterLib for the same version and loader, put the file into the mods folder and launch the game with the loader profile.

Which Minecraft versions does ArbiterLib support?

ArbiterLib has builds for Minecraft 1.21.9–1.21.10, 26.1–26.1.2, 26.3.

Is ArbiterLib needed on the server?

Needed on the server; optional in the game

License and source
MIT Licensefree to use and share with credit to the author
Original — Modrinth↗Files unchanged, verified with SHA-512Is this your mod? For rights holders

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