Minecraft Java 1.21 Mods
Browse 3,587 free mods for Minecraft Java 1.21 — popular picks include ZConfig, RiderApi, Stamina Attributes.
Updated daily

ZConfig
A mixin config plugin for zfastnoise
RiderApi
A generic library that supports mods
Stamina Attributes
A small API that adds a stamina system controlled by entity attributes.
JustAnotherLibrary
A library mod that supports all of my mods shared functions
Locki
A library for controlling access to the player's inventory

Commander
An extension of the data pack system.
Forge PlaceholderAPI
PlaceholderAPI for pure Forge mods
Blackwolf Library - Fabric
A library for my decorative Fabric mods

Goop
Adds Slime and Splatter Visual Effects to Minecraft
CommandAPI
An API to use the command UI introduced in Minecraft 1.13
Serene Seasons API Stub (Ecliptic Seasons Bridge)
Ecliptic Seasons - Serene API Compat bridges mods that use the Serene Seasons API to work with Ecliptic Seasons, allowing them to display seasonal changes without needing direct Ecliptic Seasons support.
PMWeatherAPI
An API for interacting with ProtoManly's Weather Mod
Neptune
Animation Fan Work Engine
Dat Modding API
A library for Dat Developer mods, or anyone else who want's to use it.
Item Components
Change the default components for items! Server-side and data-driven, refreshes on /reload! (and does it properly)
TargetingAPI
A simple mod to help determine friend/foe relationships between entities.
Health Regeneration Overhaul
This API changes how health regeneration works and disables the food system.
SDM Core
SDM Core is a powerful library for creating mod script elements and more.
GabrieleCore
A library mod for Gabriele_333's mods
KubeJS Oritech
KubeJS integration for Oritech.
Fox's Core
Library for some mods made by Fox.
DeftuLib
Small library for Deftu's mods.
macu lib
Library for my mods and adding supporter perks
RegSyncFix
Bypass Fabric API registry sync errors
Encounter: Mob AI Tweaker
Allow modpack developers to add targeting/avoiding rules for entity AI.
Ars Monde Lib
Content library for Ars Monde
Stamina For Tweakers
A painfully configurable stamina mod.
VexBot
Super smart Minecraft bots For PvP In any gamemode.
RefractionAPI
Refraction is an API for general use purposes.
Mekanism: Empowered Core
A library mod focused on empowering Mekanism.
Carpet crit fix
This mod fixes the problem where fake players don't perform critical hits
SI: Essentials
The main API, library and toolkit by Soncresity Industries.
Ethecore
Adds an animation and model system, as well as other utilities.
Default Components
Add, remove and change default item components. Data driven and improved mod support, can modify selected or all items
Ohmega
A modernised and lightweight accessories API for Minecraft
Roughly Enough Config Screens (RECS)
Adds configs screens for library mods such as Forge, and Framework. As well as JEI.