Minecraft Java 1.21 Mods
Browse 579 free mods for Minecraft Java 1.21 — popular picks include Crying Obsidian Upgrade, Configurable Raids, Omni-Archive.
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Crying Obsidian Upgrade
Crying Obsidian Upgrade --- A mod that adds a lot of items, food, mechanics. Also adding a new biome, ores and mobs changing the idea of weeping obsidian. The mod also fills the world with different structures.The mod is filled with different content.
Configurable Raids
Create your own raids with some JSON magic!
Omni-Archive
The content is based on Ben 10 Omniverse,The Cartoon Network Series.
IFC-Integrations
Unite the worlds of Ice and Fire and MCA Reborn with legendary relics, enhanced creature interactions, and a new way to experience both mods together.
Realms of Runeterra: A tale of Relative Dimensions
New blocks, items, mechanics, stories and adventures await you in a 131072-side block map of Runeterra, the world of the world-wide known MOBA League of Legends. An immersive new dimension paired with procedural generation to spice every new world!

Spectrum Compat
Integrates Spectrum mechanics into other mods
MobPVP // CANCELLED
MobPVP transforms your Minecraft survival experience by assigning levels to every living creature in the game. Based on these levels, mobs gain different abilities, attributes, and loot chances, creating a more challenging and rewarding combat system.
JOJO - stone block crusaders
Many features from the popular manga/anime jojo's bizzare adventure (jjba)

Snowier Golems
Allows you to enchant snow golems for new abilities! (made for WinterJam)
Neutrality Redux
Neutrality Redux is a remake of a mod about the interaction, friendship and development of the Illager race!
WildLife
A recreation of the WildLife series by Grian!
NeoPasterDream
Also known as the NewPasterDream, it is a port of the original mod to the 1.21.1 NEO loader, and has been restructured to make it more oriented towards adventure themes.
STAR WARS: Project The Force {SWPTF}
A project that will completely immerse you in a Galaxy far, far away;)
ItemDisplayPlugin
This plugin allows the collection of items dropped within a 5-block radius in Minecraft, merging the items with the same type and displaying their quantity in the item’s custom name. Items that cannot be stacked, such as enchanted equipment (e.g., swords,
Spawner Upgrades
A datapack that allows you to collect spawners with silk touch, and/or upgrade them with craftable custom items.
Multipack: Enhanced Vanilla
Enhanced the vanilla experience with a multitude of features which each improve the game in unique ways
Bear Traps
Adds Bear Traps to the game, they can be used to damage mobs that step on them and keep them in place
Project Jujutsushi
A datapack that is dedicated to the Jujutsu Kaisen anime/manga.
Mobo's Structures
Pirate Ships! Castles! Dungeons! Towers and More! If you're an explorer, this datapack is for YOU!
EnchantedHarnesses
Faster Happy Ghasts with speed customization & a custom enchantment for harnesses
Dreamlands
Escape reality in your dreamland.
MorphMaster
This Datapack allows you to morph/transform in any mob/item/block in minecraft
Harder
Increased Damage: Boosts mob damage based on the number of days spent in the world and a cuztomizable percentaje. More+
Mob HeadSteal SMP
Collect player heads on kill and unlock powerful abilities using custom mob heads in intense PvP combat.
Universal Trinkets
Modular, command-powered trinkets for mapmakers, mod-pack devs, and power players.

O's enderite
Adds new ores, tools, mobs, blocks and structures based on Enderite — a powerful resource from the End.
Netherlock'd
Locks the Nether behind the Wither, turning the Nether portal into a sealed gateway that must be unlocked by defeating the guardian within.
Size shifter/Antman origin
Adds the size shifter / antman origin to minecraft
NeoBB - BlockBattles
A better version of Block Battles, where multiple players compete in a turn-based game, similar to chess or card games.
Random Events
Random events occur periodically to keep the players challenged.
Help Me Hardcore
Help Me Hardcore Adds All Kinds of Extra Challenges from Community Ideas to Full-Themed Updates for Your Hardcore Worlds or Even Hardcore SMP Servers!
oCode-AnarchiaBosses
Create custom bosses with skills, attributes, equipment and more!
oSzoukaua's: Invisiward
Do you hate yourself? Do you want a "real" challenge? have you considered... invisible Wardens?
Minecraft Dungeons Enchantments
This datapack DOUBLES the total amount of available minecraft enchantments!
Shielding Swords
A light weight pack that adds the sword block mechanic, Similar to minecraft update 1.8, you can now block attacks using your sword and neglect part of the damage and knockback dealt to you. Brilliant!

Old Legends
The remains of old legends wait to be discovered