Minecraft Java 1.21 Mods
Browse 22,257 free mods for Minecraft Java 1.21 — popular picks include Cold as Ice, XDonPlugins, Cordless.
Step by step: How to install Minecraft Java mods & modpacks
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Cold as Ice
Un-meltable ice & snow! Very configurable
XDonPlugins
A functional mod created for Minecraft resource packs. More interesting features will continue to be released in the future. For a more detailed introduction to the mod, you can search for this mod on Bilibili to watch tutorial videos.
Cordless
Removes the ability to view coordinates on F3
PlayerBeacon
Allows you to distinguish your allies from your enemies.
MovableCoords
Need to know your coordinates at all time?

Craftable Coral
Adds crafting recipes for all coral types!
Toaster's Bundle Keybind-Fix Mod
Changes bundles' keybinds to make them consistent with other items.

All Together Now
This pack is a combination of the first five projects from the NightML Studios organization.
MythicWorldTweaks
A mod for my own MythicWorld server.

Hitmarkers
Add useful bow hitmarkers to your server!
No Despawing Items
Items no longer despawn!
Stan's deathshot
A Minecraft mod that automatically takes a screenshot whenever you die, saving it along with your coordinates in a neat little folder.
Rollbound
The dice rolling solution brought to you by the Lumina Collection
Anger
Makes angered neutral mobs attack all nearby players
Armorstand Commands
Add Commands To Armorsatnds!
Splinecart Aquatic
This is a small mixin designed to be used with the Splinecart mod. It makes Splinecart track ties able to be placed in water, that way you can make under water roller coasters or waterslides.

Experiment: Determination
Brings Undertale's iconic save points, time rollbacks, and action consequences directly into Minecraft.
Always Drop Heavy Core
Have a 100% chance to get the Heavy Core.
CityChan's RNGdle
CityChan's RNGdle rolls your fate once per Minecraft day, applying a set of potion effects that last the full day and cannot be removed. Similar to RNGdle.com.
Last Breathes
Automatically records and saves the last 10 seconds of gameplay as a video when you die. Never miss your most epic death moments!
Bonfires EX
Addon for Bonfires with structures, compatibility, mechanics and improvements.
Glow Goo
A throwable glowing goo that creates invisible light sources.
ItemKeybind
Quickly select any item from your hotbar by pressing a configured key
PotionCoreX
Make potions stackable without breaking brewing stands, hoppers or vanilla inventory behavior.
[SW] Aether Tweaks
Simplifies Aether accessories to capes + gloves, replaces survival inventory with accessories screen, and restricts Sun Altar to OP players.
Skeleton Bow Chance
SkeletonBowChance is a simple mod that adds a configurable chance for skeletons to spawn with bows

Elytra Eraser
Replace those pesky Elytra's with a useless leather chestplate!
Obsidian Dragon
A simple plugin to spawn and control Ender Dragons with custom loot and economy.
Stop Fisting Trees
A Minecraft mod that prevents players from breaking logs with their bare hands
Taglighting
Finally feature X is now a tag instead of being a random hardcoded thing. Yipeee!
Vex's Transformation
Do you hate Vexes?, but always wanted more allays?
NoFullBright
Paper plugin which executes a command when it detects a player using full bright texture pack
NekoX
A Minecraft Paper plugin that transforms players into cute neko girls with special abilities, combining features from NekoC and toNeko plugins to create a comprehensive feline experience on your server.
SaveAndExit
SaveAndExit is a plugin for safely restarting a server with backups and maintenance mode.
Progression Plus
This mod adds a tier between Iron and Diamond, called Mystium.
Permanent Ghastlings
Ghastlings cannot age if they are named 'Ghastling', 'Baby Ghast', 'Happy Ghast', 'Baby Happy Ghast', or 'Ghast'.