Minecraft Java 1.21 Mods
Browse 559 free mods for Minecraft Java 1.21 — popular picks include oneaura's Cart Optimizer, Minecart Turning, More Dyed Wool and Carpet [PurpurPack].
Updated daily
oneaura's Cart Optimizer
A mod that prevent carts from ghosting when you place them.
Minecart Turning
MC-201 fix; player camera turns with minecart (and other uncontrolled entities)
More Dyed Wool and Carpet [PurpurPack]
Allows dyeing wool and carpet with 1 dye per 8 wool/carpet, like most other dyeing recipes
No Enchant Block
Decorate your enchanting area with a wider range of blocks. Finally you can freely carpet your floor and still get max level enchantments!
Rail Recipe Rebalance
Improve rail recipes to make minecart transportation more worthwhile!
Tnt Minecart Optimizer
A Minecraft client-side mod that reduces delays in TNT minecart interactions caused by server latency.
[🎄] Seasonal Decorations
Decorate your world for Halloween with spooky candles, carved pumpkins, coffins, and eerie details to bring true haunted atmosphere to Minecraft.
let_me_free.jar
A psychological horror mod that adds horrifying entities, RNG events, jumpscares, unexpected teleportation and an unsettling atmosphere to your Minecraft world.
[SBW] Wrecked!
Stops SuperbWarfare vehicles from evaporating after being destroyed!
Backported Minecarts
Backports 1.21.2 minecart mechanics
CobbleTCG
A trading card collection mod for Cobblemon inspired by classic Pokémon TCG collections.
PVP Trainer
Visualize hotbar keybinds and useful tools for learning PVP.
201 Trainers [Cobblemon]
This datapack introduces Trainer NPCs that roam the world, offering players the chance to challenge them in battle and earn exciting rewards!
Duch Cart Fix
A client-side Fabric mod that automatically switches to a minecart after placing a rail (with offhand support), and offers a one-click mode that places both rail and cart in a single act
Carpet Minitweaks
An extension for Carpet Mod with many toggleable survival-oriented game mechanic changes
Self-Care Hive
Bees autonomously heal themselves and repopulate their hives.
Create Grappling Hooks
A grappling hook for Create: Aeronautics — fire cables across the sky, ride them on a trolley, carry other players, and swing between your airships.
Linkart Refabricated
Updated fork of Linkart, a mod that allows you to link your carts together via chains

JoaCarpet
A small carpet extension mod with useful features for redstone and storage tech (+some minor survival tweaks)
Cobblemon: Fierce Competition
Adding trainers to Cobblemon the right way
The Bad Joke(Плохая шутка)
THE SCARIEST HORROR MOD EVER(100%) arthouse
MyPet 3 (Legacy)
Transform any mob into your loyal companion. Train them. Ride them. Fight alongside them.
Dungeon Train: A Lore-Rich Roguelite RPG Adventure
Adventure time inspired dungeon crawler on a train. Procedurally generated carriages on a infinite sable physics train. Rich narrative, with custom made mods for a completely unique experience.
Syncac (Synchronized Auto Clicker)
Minecraft auto clicker, synchronizes clicks with Carpet Mod TPS logger.
Silent Mobs/Minecarts
Name noisy mobs or minecarts "silent" to silence them!
CleanContainer
CleanContainer helps you to sort your inventory and your containers, such as chests, barrels, shulkers, minecartchests and enderchests.
Cobblemon: Infinite Rare Candy
A pink rare candy that allows you to level up your Pokemon instantly without the risk of it being consumed. It is Radical Cobblemon Trainers compatible!
YetAnotherCarpetAddition
Another useful carpet addition!
Carry On Throw Addon
Adds a fully-featured Throw mechanic to the Carry On mod - allowing players to throw carried entities with physics-based velocity, charge time, obstacle detection, client-side toggle, configurable cooldown, and more.
Cobblemon: Trainers Backpack
Cobblemon + Sophisticated Backpacks Integration. Adds backpack upgrades such as the PC Upgrade, Smart Heal Upgrade, and Campfire Pot Upgrade.
Carpet Takeneko Addition
Carpet Addition made by ZhuRuoLing
Cart Counter
a simple mod that counts your tnt minecarts that is in your inventory
Jeremi's Tensura
A Tensura reincarnated addon, adding new Unique and Ultimate skills as well as new game mechanics. You can contact me through our Discord Server
MCoaster
Adds smooth Roller Coasters to Minecraft. Fork of Splinecart
Create: Railway Evolution
Smart traffic control and collision avoidance for Create trains. No more signals needed.
PvP Train Bot
A PvP Train Bot perfect for Crystal PvP or Practise