Minecraft Java 1.21 Mods
Browse 329 free mods for Minecraft Java 1.21 — popular picks include Curios API, FTB Library (NeoForge), FTB Quests (NeoForge).
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Curios API
A flexible and expandable accessory/equipment API for users and developers.
FTB Library (NeoForge)
Common code for all GUI stuff in FTB Mods
FTB Quests (NeoForge)
Questing Mod by FTB
Framework
A common library powering all of MrCrayfish's Mods
Common Capabilities
Forge Capabilities that can be shared by multiple mods
![Better Combat [Fabric & Forge]](https://pub-2ae937f770284535a96c3330f91236aa.r2.dev/thumb/curseforge/11248.webp)
Better Combat [Fabric & Forge]
⚔️ Easy, spectacular and fun melee combat system from Minecraft Dungeons.
Apothic Attributes
A library mod providing Attributes and related things.
InsaneLib
A set of common classes and utilities used by Insane's mods
Modonomicon
Data-driven minecraft in-game documentation with progress visualization.
![Combat Roll [Fabric & Forge]](https://pub-2ae937f770284535a96c3330f91236aa.r2.dev/thumb/curseforge/11582.webp)
Combat Roll [Fabric & Forge]
🧶 Adds combat roll ability, with related attributes and enchantments.
EdivadLib
Just a common library for all my mods
FTB Library (Fabric)
Common code for all GUI stuff in FTB Mods. Component/layer based GUI creation. Used by mods such as FTB Chunks, FTB Quests, etc. (Fabric version)
![Pufferfish's Skills [Fabric & Forge & NeoForge]](https://pub-2ae937f770284535a96c3330f91236aa.r2.dev/thumb/curseforge/11537.webp)
Pufferfish's Skills [Fabric & Forge & NeoForge]
Adds a fully configurable skill system to the game.
MaLiLib
A library mod for client-side mods. Contains most of the common/shared code of masa's client mods, and adds some inter-operation support between the dependent mods.
FTB Teams (Fabric)
Library for mods that can utilize team progression like FTB Chunks and FTB Quests. (Fabric version)
FTB Quests (Fabric)
FTB Quests is a lightweight, team-based questing mod and is very simple to use. (Fabric version)
Integrated API
The library mod for the Integrated Structures series
Epic Fight
Changes Minecraft Combat into Souls-Like Combat.
Advanced Netherite (Forge / NeoForge)
A configurable, vanilla friendly, open-source mod that adds in more tiers of Netherite!
![Pufferfish's Attributes [Fabric & Forge & NeoForge]](https://media.forgecdn.net/avatars/967/863/638468036464421080.png)
Pufferfish's Attributes [Fabric & Forge & NeoForge]
Adds more attributes to the game.
Common Network
Forge and Fabric Unified Networking Solution
Advanced Netherite (Fabric)
A configurable, vanilla friendly, open-source mod that adds in more tiers of Netherite!
Shield API
Creating shields with custom models was never easier!
Areas
✍️ Create custom named regions/towns/zones with a radius using signs, with join/leave messages via GUI.
Summoning Rituals
Create custom summoning rituals for items, mobs and commands.
Idwtialsimmoedm
I didn't want to install a library so I made my own Enchantment Descriptions mod
Iron's Lib
Provides common functionality and content for Iron's mods
RyoamicLights
LambDynamicLights unofficial architectury port. A dynamic lights mod for minecraft.
Quests Lang Splitter
This mod adds a feature to split lang files for better version control, also adds some utility commands.
Tooltip Overhaul
Every tooltip, more modern, sharper, cleaner.
GTBC's SpellLib/API
A library mod and common code storage for all of my mods containing helpful tools to make my life easier with ISS add-on making!
Guidebook
Custom books with formatting and pictures
More RPG Library
Library with status effects, entity attributes & Spell engine API additions.
Deltabox Lib
A Kotlin library for all Deltabox mods!
Foolproof
Utility for modpack devs that fixes commonly reported areas of user confusion
Accessories Compatibility Layer
Modifies commonly used Accessory API's to work with Accessories, unifying a modpack under one Accessory API