Minecraft Java 1.21 Mods
Browse 12,434 free mods for Minecraft Java 1.21 — popular picks include Duck Mod, Alkatraz Magic, Bonfire blessings.
Updated daily
Duck Mod
Adds a client-sided, toggleable duck to your game to follow you around, with an optional server-side component.
Alkatraz Magic
Advanced Magic Plugin
Bonfire blessings
A cozy, server-side mod that adds a healing and nourishing aura to lit campfires for players and friendly animals, completely ignoring monsters.
Maid Deep Mob Learning
Let your maid use the Deep Learner
End Phantoms
Simple datapack adding phantoms to the end.
NoMobGriefing
Prevents mobs from griefing
Ornithia
Adds birds, tameable owls, sickles and straw.
Hungry Iron Golems
Allows Iron Golems to pick up and consume certain iron items from the ground or the new Iron Lunchbox storage block to restore health.
McDonalds Mod
A mod to add McDonalds and Grimace
UltimateContent
Adds tons of custom mobs, items, and enchants with advanced functionality and abilities!
Kaths Simple Bossmobs
Adding a simple bossmob out of some enemies.
Waveful
A clean 64x PvP resource pack featuring low-fire, mini-totems, and optimized UI for a competitive, high-definition experience.
Items & Mechanics Classic (Re-Classic Addon)
This mod adds many items with various functionality, armor and more (with old textures)
Balrogchar's Modernized Creeper
The iconic monster, updated for a plethora of trees in a variety of environments.
Motley Fins
Updates aquatic biomes, adding blocks and a new mob!
Easy Name Tag Crafting
The mod allows you to easily create a name tag
Teh
Floating Damage/Heal/XP Indicator
No Iron Golems Spawn
Disables the spawning of iron golems caused by villagers, spawn eggs, or commands. Iron golems can only be spawned by building them manually.
VoidMachina
RPG modpack with magic, machines, and exploration for Minecraft 1.21.1 NeoForge. Optimized to run with only 4 GB of RAM and compatible with multiplayer and mobile devices via PojavLauncher.

Next Level Twitch Integration
A mod for streamers to use, Allows chat to cause chaos
Consistent Naming: Withered
A simple pack that renames Wither Skeletons to Withered, finally matching the naming scheme of other undead mob variants! Husks, Strays, Drowned, and Bogged can all celebrate as Withered share their naming scheme after all this time!
Depth Based Creeper Griefing
Creepers don't damage surface blocks, but are more dangerous deep underground
(Rustic's) Bountiful Seals
Adds many arctic-themed features (such as seals!)

Wili's Pikmins
Adds Pikmin and Pikmin-related features for a personal modpack/server
Entity Item Tooltips
Add extra information to the tooltips for entity spawning items.
WRLD SMP Adventurepack
Explore unknown lands, battle custom monsters, and create complex machinery.
OptiFoundry
Optimize chunks, entities, and ticks
Advanced API
AdvancedAPI provides very simple code, for example, ItemBuilder or SimpleInventory, which can be used to create things faster. ONLY FOR PLUGIN DEVELOPERS
Realistic Bird Behavior
A mod that improves bird breeding behavior
Durability Bar Entity Health Indicator
This is a mod that renders a bar (that looks like Minecraft's tool durability bar), when looking at entities, that displays their health.
Mild's Armored Elytra
A data pack that changes the overpowered concept to a vanilla friendly, balanced feature.
PotatoLo's Medieval Adventure
A medieval Minecraft adventure for you to enjoy. There are many structures, weapons and new mobs to find. This modpack is also quite light with only around 69 mods.
Create: Brass Golems
Adds a Brass Golem mob that can pick up items, generate SU, and make your factories a little more fun!
Bulging Eyes
Gives every mob in the game builging eyes!
Don't Hurt Others' Pets
Prevents people from hurting pets that don't belong to them
Get UUID
Simple UUID conversion library