Mods for Minecraft Java
Browse 1,397 free mods for Minecraft Java — popular picks include Jacko's Bossified Weapons, Sea Legend, random things/stuff.
Step by step: How to install Minecraft Java mods & modpacks
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Jacko's Bossified Weapons
Ever wanted more uses for the vanilla bosses other than access to elytras and crafting beacons?
Sea Legend
Sea Legend adds a massive multi-phase ocean boss, the custom Leviathan Abyss biome, pirate ships, shipwrecks, lighthouses, exploration maps, unique loot, Abyssal armour and the powerful Fang Blade.
random things/stuff
random things i added with blockbench for models and mcreator this adds new ore mobs bosses blocks tools items and much much more
Elder Guardian Enhanced
Experience a cinematic multi phase Elder Guardian boss fight designed to feel like an official Minecraft update
The Umbral Eye / 虚空の蝕王オクルス
A floating, void-themed endgame boss summoned by ritual. The Umbral Eye fights across three telegraphed phases — tuned so that even full netherite, a beacon, and golden apples make for only a knife's-edge win. 祭壇の儀式で召喚する浮遊ボス「虚空の蝕王オクルス」を追加。予兆付きの3段階で戦う
Deicide: Wither
This mod makes the Wither transcend divinity, preserving the vanilla style while enhancing the fun and challenge of the Wither boss fight.
iMode
iMode adds witchery, custom spells, new mobs, 4 new bosses, an infinite dungeon dimension and makes game progressively harder. Also adds a level system. Everythig is toggleable in configurations.
Warden Boss Bar
Ever thought the Warden should deserve a boss bar, due to the large amount of HP it has (500 HP)? Then this mod is for you.
Nether chambers
Adds custom trial chambers, mace, boss and items to the nether
UltraRituals-Free
Offering altar system to summon bosses, free version
blazeQOL
Minecraft mod for Hypixel Skyblock which features QOL for Blaze Slayer giving you a HUD with general information about the current boss.

CobbleCatalyst
Adds Cobblemon trainer battle phases to Cataclysm boss fights, turning boss fights into hybrid combat and Pokemon battle challenges.
Boss And M ore(BAM)
A mod that adds new boss and new mobs and structures this mod adds a new why of seeing the world, it adds a lot to explore and a lot to achieve, this mod adds new bosses and new structures, utilities, etc...
The Division
The Division adds two new dimensions, bosses, gear, and a narrative about creation and destruction. Explore a cybernetic realm and the corrupted "Beginning", forge legendary weapons, and uncover the secret behind the divide between worlds.
Garfield Mod
Adds Garfield as a hungry, whining boss fight – beat him and claim your well-earned lasagna!
MagicAirdrops
Replace boring airdrops with new events with various rewards and bosses.
Chaosium
This mod is a new adventure for the player who will be able to face bigger enemy capable of killing them in a snap, this mod allows you to get new item, armor and block. Once well equipped and prepared the player can go to challenge the bosses
Olympus Rush
Climb a hand-sculpted Olympus and slay its thirteen gods — God of War-style boss battles with the Blades of Chaos, and Hades waiting on his throne beneath the world.
Villager BOSS MOD
Defeat the Crazy Villager BOSS!
Growth Mobs
Growth Mobs adds powerful growth stages to Minecraft mobs, transforming ordinary enemies into massive bosses with unique abilities, custom boss bars, devastating attacks, and enormous health pools. Progress through new gear tiers.
Custom Boss Zoryth AI
Zoryth AI Boss is a premium, high-performance custom boss framework for Paper (1.21.x).
7 Deadly Sins : Reworked
A feature-rich Paper 1.21.1 plugin introducing 70 custom enchantments, raid bosses, progression systems, and party-based gameplay inspired by the Seven Deadly Sins.
reddimension
This mod adds a new dimension called the reddimension with new bosses and items to get.
The Choppa Age Update
This mod adds Choppas, Chopper Golems, Choppa Chests, and a new Choppa Golem boss to Minecraft. There are new items such as the cleavers, and a new extremely common biome called the wastelands.
Boss Drops
makes bating bosses worth it!!
The All Powerful Ender Chicken
Minecraft's hardest boss!
Passive Boss Bars
This is a lightweight, server-side mod for modpack creators that allows you to make boss bars only appear when a boss is aggro. The mod "Mob Boss Bars" is required for this to work.
GuardianOfNether
Just a boss protecting the Nether from visitors who would dare to enter the Nether 🔥
Ala Loot
Random loot from the entire item registry - drop chance equals your XP level. Boss kills give legendary stacks. Multi-language, fully configurable, server-side only.
Benate
This is a mod that surrounds a new demigod/boss named Benate. This mod adds a desert dimension and a Forest dimension that have existed for many many years but not thoroughly explored.
Poke card
This Projekt adds an poke Card with that you can capture and release Mobs anywhere. But not endbosses.
Mini Bosses
Changes a configurable mobs to minibosses
AI Bosses
This mod is created by Bilibili content creator 星光里的火焰(ffFLAME). All boss concepts are designed by AI, which I then implement into the game via custom coding.
Boogers & Snot
This minecraft mod gives you the ability to pick your nose, go to a new dimension, and even beat a boss!

Golden Cat Boss
This mod adds a Boss that looks like a cat as gold.
Vruys Sussy Hard Insects
This mod adds a bunch of insects and a boss to make the game more challenging.