Utility Mods for Minecraft Java
Browse 17 free Utility mods for Minecraft Java — popular picks include SL Library, BreweryLib, AuroraLib.
Updated daily
SL Library
Adds various base utilities, synchronization help, policy, packet sending and data driven
BreweryLib
A lightweight library for Alehouse Utilities mods.
AuroraLib
Base plugin for every Aurora project. Provides common utilities and functions.
EmbeddedMariaDB
An utility mod that will create and start a mariadb database

Slashbridge
serverside utility mod aiming to add in minecraft commands that I think the base game lacks, bridging datapack and mod function.
Tiny DataLib
This project is a library with useful utilities such as a database system and more.
MysticLib
Core shared library for all Mystic Minecraft plugins — provides database pooling, logging, plugin registry, and utilities.
Cobblemon Tim Core Mod (1.21.1, 1.21) – Essential Library For Pokemon Modding
Cobblemon Tim Core Mod serves as a shared codebase to reduce code duplication across the developer's Cobblemon-related mods, providing common utilities, fixes, and extensions. It's essential for modpacks using multiple "Tim" Cobblemon addons, ensuring consistent behavior and performance. Features: Base classes for mod structure and config handling. Simplified config creation with overridable settings. Tools for […]
Tweakeroo Update Port Mod (1.21.11, 1.21.1) – More Control, Better Building
Tweakeroo Update Port Mod is a versatile client-side mod packed with quality-of-life tweaks. From Accurate Block Placement to Free Camera and Gamma Override, this mod gives you fine-grained control over your gameplay. Features: Popular tweaks include: Hand Restock. Flexible/Accurate Block Placement. Fast Click (left/right) Gamma Override (see in the dark) Free Camera mode. Fully client-side; […]
Fzzy Core Mod (1.20.1, 1.19.4) – Library For Fzzyhmstrs's Mod
Fzzy Core Mod is the base API that powers some kotlin mods made by fzzyhmstrs (that's me!). Besides offering some basic utility functions that come in handy for many different types of mods, Fzzy Core includes the basic framework of the Modifier System, a flexible and powerful system for modifying… almost anything! Features: Coding Utilities […]
RFTools Utility Mod (1.21.1, 1.20.1) – Tons of General Tools and Utilities
RFTools Utility Mod is the newest version of the original RFTools with tons of general tools and utilities. This is still alpha and currently only contains the teleportation system and the crafter. This mod is intended to be used together with RFTools Power and depends on RFTools Base and McJtyLib. Features: It contains the following […]
CthuLib Mod (1.20.1) – Library for Pixel Dream Studios Mod Packs
CthuLib Mod is a foundational mod created by Pixel Dream Studios for Minecraft. It serves as a base mod for their mod packs, providing a set of utilities, functions, and hidden features that enhance the overall gameplay experience. Features: Offers tools and features to improve modded Minecraft gameplay. Includes Easter eggs and surprises for players […]
Iskall Utilities Mod (1.16.5) – Dependency for Vault Hunters Modpack
Iskall Utilities Mod contains various building blocks for use in the generation of the Vaults that the Vault Hunters which is a mod that was especailly created to be used within the Official pack played on the official Vault Hunters SMP on Twitch, where CaptainSparklez, iskall85, hbomb94, Stressmonster101 and AntonioAsh set out on a 90 […]
MowLib Mod (1.20.1, 1.19.2) – Library for Mowmaster's Mods
MowLib Mod is a collection of code, frameworks, utilities, and other resources using for Mowmaster's Mods. Features: Dual Handed Crafting. A Coloring System used to color blocks. A System Modders can use to 'build' workstations/machines directly in world. For Modders, There is also a lot of util classes and base classes used to make some […]
AlcatrazCore Mod (1.12.2) – Library for AlcatrazEscapee's Mods
AlcatrazCore Mod is a code library for AlcatrazEscapee's Mods. It provides default registry object base classes, and simple utilities and tools to reduce code duplication across multiple mods. AlcatrazCore Mod Download Links For Minecraft 1.12.2 Forge version: Download from Server 1
Kore Sample 1.11.2, 1.10.2 (Library for Ancient Trees Mod)
Kore Sample 1.11.2, 1.10.2 provides a set of tools and base classes for other Minecraft mods that depend on it. Currently required by the following mods: Ancient Trees, Scott's Tweaks. Kore Sample 1.11.2, 1.10.2 Download Links For Minecraft 1.7.10 Download from Server 1 – Download from Server 2 For Minecraft 1.9.4 Download from Server 1 […]
Kiwi Library (26.1.2, 1.20.1) – Make Modding No Longer Cumbersome
Kiwi Library is the shared code base behind Snownee's mods, so most players install it because something else asked for it rather than for its own sake. It does carry a handful of small quality of life tweaks on top of that, such as showing item NBT and tags in tooltips and switching off Microsoft's […]