Minecraft Java 1.21 Mods
Browse 126,986 free mods for Minecraft Java 1.21 — popular picks include End's Phantasm 3D, FPSCompress, Hardcore Spawn.
Step by step: How to install Minecraft Java mods & modpacks
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End's Phantasm 3D
Make End's Phantasm items 3D!
FPSCompress
Run your factories without chunk loading overhead by caching production rates and simulating them mathematically.
Hardcore Spawn
Changes spawn mechanics to be more difficult with the end goal of setting you spawn point in a different way.
Wild Spears
Wild Spears - datapack that adds 17 new spears to the game!
MedievalPlus
Adds a medieval theme to minecraft that complements vanilla. This adds forgeries which change weapon stats and behaviour, new QoL items for horses and new mob variants using said forgeries.
Haokai Star Rail Blade ReNeo
The ReNeo mod of Haokai Star Rail Blade
Blurry Wynn
Wynncraft pack blocks blurred.
Random Mob
This mod adds a very hardcore minigame to Minecraft! Every 30 seconds, a mob with a random modifier spawns in your world, making the game much harder! Can you beat Minecraft and kill the Ender Dragon with this mod?
Sloth's Cursed Blocks
A datapack + resource pack to add some cursed blocks into the game

Craft Light Blocks
Adds a crafting recipe for light blocks - simple as that :)
April Fools Demo Screen
Send a demo screen packet to clients on April fools day.
Randomized Villager Names
A data pack that gives random names and titles to all villagers you trade with totaling over 3000 combinations.
milosz14's optimized pack
My personal optimized pack! Made by players, for players.
Kiln Furnace
Adds a new furnace type for decorative blocks and charcoal.
Duelity
Duelity is a simple Open Source duel plugin made for SMPs and as a base for upcoming Duel servers.
Little Lattes Cafémon
A Cozy Cobblemon modpack
jonshu's revamped mossy bricks
recreates the texture of mossy stone bricks to be more dense & work with other mossy blocks
Custom Trims
Adds the ability to add a custom armor trim GUI system, with options to edit multiple armor types and toggle on and off. A great way to monetize your server.
Trident Weathering
A mod that lets the Player control the Weather with a Trident!
Mighty Steeds
Horses are under-appreciated by Mojang, lets give them some love!
HoneyPuu CA13 Mods
Modpack with all mods, resourcepacks and shader used by HoneyPuu in CraftAttack 13
Accessories Tweaks
Tweaks the Experimental Menu of the Accessories Mod.
Valia++
This modpack is for players who want Minecraft with Vanilla with Quality of Life features. It also lets you play on the ValiaSMP server, created by Spanish-speaking creators DasuMC and NezoSecreto, both content creators.
Pathway
Library in aid of controlling entities
PacketBlocks
A lightweight Spigot/Paper library for creating and managing client-side, packet-based Minecraft blocks.

No More Vignette
Removes the pesky vignette from your screen
IL Cobblemon
This is the Immortal Legends Cobblemon modpack!
Renewable Echo Shards│可再生回聲碎片
Bats will drop Echo Shards after being killed by the Warden.│蝙蝠被伏守者擊殺會掉落回聲碎片。
Strengthening Golems│強化傀儡
You can repair snow golems using snowballs, just like you can repair iron golems.│你可以用雪球修復雪傀儡,就像修復鐵傀儡一樣。
CloudFreeze
Allows users to freeze clouds, and manipulate their rotation.
XfeaturesRPGMoney
A Minecraft RPG economy plugin that adds money drops from mobs, blocks, and fishing. Enhances gameplay with customizable drop rates, Fortune/Looting support, and player statistics tracking.
MCC Island Panorama
A resource pack that replaces the menu panorama with the MCC Island Hub.
Centered Item Frames
Centers item frames to the middle of the chest for easy access.
Simply 3D Zinc [Create]
A resource pack that makes the zinc ores from create simply 3D.
Goofy Additions
This Mod adds Elements like Ores, Ingots and Armor some might call "Goofy" (My Side Project)
Better Carrot Items
With this resource pack, your tools will become carrots! Try this resource pack.