Minecraft Java 1.21 Mods
Browse 12,413 free mods for Minecraft Java 1.21 — popular picks include Moldyfishy's Many Additions, creeperGriefing, Velocity 16x.
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Moldyfishy's Many Additions
The mod revolves around the Reimagined Dimension (Overworld but enhanced) and the Underworld (The Reimagined but darker and creepier)

creeperGriefing
A lightweight server side mod that adds a gamerule for creeper griefing
Velocity 16x
A refined PvP texture pack built for competitive gameplay. Featuring low fire, durability display, reduced particles, and smooth animations for a cleaner, faster combat experience.
Player Carpet Extension
A complementary mod to the "Carpet Mod" that allows you to manage the player's inventory with an interface and activate the switcher between items so you can use multiple items from the inventory.
Scarborough Fair
Floating End-shaped islands generated with vanilla Overworld biomes, surfaces, features, mobs, and structures.
GetEgged
A plugin to capture mobs into spawn eggs while preserving their data
KingOfTheHill
"King of the Hill" – a Minecraft plugin where players compete for control over special blocks.
28 Blocks Later
This mod adds the rage virus from 28 Days later and it's sequals, 28 Weeks Later and 28 Years later.
Some Simple Additions
A simple content mod that adds a new ore, armour set, tools, blocks and advancements showing progression
Finvary
adds a touch of randomness to the game by adjusting the size and health of fish entities when they spawn
more mobs modpack
Simple modpack that adds more mobs and optimisation mods and few simple fun mods.
MagicAirdrops
Replace boring airdrops with new events with various rewards and bosses.
Soul Swap
A simple Fabric mod for Minecraft 1.21.11 that changes how Ender Pearls work when you hit mobs. Instead of just teleporting you, it swaps your soul with theirs
Instant Growth
Baby animals and villagers grow up instantly!
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.
BossRewards
Reward top damage dealers in MythicMobs boss fights!
[1.19-1.21] CustomMobLoot
Customise mob item and experience drops!
Opti Pepo Mobile
A optimized modpack for playing in Zalith launcher
Endercon End Phantoms
Simple datapack adding phantoms to the end. Supports & Requires Endercon.
Speed For Ghasts
Give potions of swiftness to Happy Ghasts to make them fly faster.
Faster MC
Plugin that tweaks the game to make it slightly faster to complete.
CakeCannon DataPack
[This DataPack Adds A Small Cannon That Shoots Cake, Shoot At The Ground Or Mobs And The Ground Or Mob Will Explode Into Cake]
Villager Pets
A datapack that adds pets to villages, featuring cats and dogs!
Craftable copper golem statues
Adds recipes for all variants of the copper golem statue
KLAUS
simple mod that adds an evil santa klaus bossfigh
Nether chambers
Adds custom trial chambers, mace, boss and items to the nether
Garfeldi [Cobblemon]
Back in 2024, I made an April Fools' addon for Cobblemon just called "Garfeldi", ironically posted to the Cobblemon server on April 2nd. I found the files, like, 10 minutes ago, made minimal changes, and decided to post it to Modrinth.
Chefmakes' Custom Peaceful
This is a peaceful mod for people who might want more out of peaceful, not less
Uno Reverse Cow
"The ultimate 'no u' for Minecraft. Try to milk a cow, and she'll milk you instead. Get a custom bucket of 'YourName's Milk'!"
The Corrupted Past
He destroyed it all. He killed us all. He did this to us.
Craft ALL Eggs And Spawner
Allows you to craft ALL creature eggs in Minecraft, as well as the spawner.
Freeze Mobs on look
When You look at mobs they freeze
Piglin Growth│豬布林成長
Baby Piglin will grow up.│幼年豬布林會長大。
Picasso
Transform your world with many new building blocks.
StarBegone
Removes the nether star drop from the wither.
Godmode- wither rework
This mod entirely reworks the wither boss in minecraft, with custom loot, moveset, etc