Minecraft Java 1.21 Mods
Browse 22,236 free mods for Minecraft Java 1.21 — popular picks include April, Skilled Marksman, create diesel generators: gasoline+.
Step by step: How to install Minecraft Java mods & modpacks
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April
一个专为Minecraft服务器设计的恶搞性插件,为游戏注入例如霉运、摔落增强、节肢帮手等荒诞与挑战! A spoof plugin designed specifically for Minecraft servers to infuse the game with such absurdities and challenges as bad luck, fall enhancements, and knuckle-dragging helpers!

Skilled Marksman
Modifies bow behaviour to require some skill, increasing aim randomness the longer the bow is held fully charged.
create diesel generators: gasoline+
pumping gasoline into a combustion engine will result in a higher speed but lower SU.
Suting's GrabPack for plunger launche
I replaced the Plunger Launcher model from the original mod with the GrabPack from Poppy Playtime. I think they're pretty similar in terms of gameplay mechanics.
InventoryClose
Close Inventory adds a dedicated keybind in Minecraft’s Inventory category to close open vanilla inventory and container screens without changing ESC or adding custom menus.
Aeronautics Realistic Air Pressure
Create: Aeronautics Addon that makes the air pressure curve mimic real life, in 1/16 scale
Breeding More
Makes vanilla pigs, cows, sheep, and chickens give birth to 2–4 babies instead of just one.
VarnoShop
VarnoShop is the ultimate "Drop-and-Play" web marketplace for Minecraft servers. It features a fully embedded, high-performance web dashboard that runs directly from your server without requiring Node.js, external hosting, or complex setups. Players can s
SimpleTreeCutter
TreeCutter is a lightweight and configurable Minecraft plugin that lets players cut down entire natural trees instantly by sneaking and breaking the bottom log.
BMNpcForceReload
Automatically reapplies BetterModel templates to NPC Citizens when the server starts up and at regular intervals to prevent NPCs without templates.
Visibility Key
Visibility allows you to override the invisibility effect, making affected players’ nicknames and skins visible. It also includes an option to hide titles, with all features easily toggleable through configurable keybindings.
Obman-Srenia
A mod that allows you to use creative on any server without operator rights!
HitSniper
Lightweight Fabric mod for testing and customizing hit feedback with simple commands and sound testing support.
Repeat
Repeat, a simple and lightweight plugin that automatically sends a custom message at regular intervals to your server.
Living World: Seasons & Ecology
Living World: Seasons & Ecology dynamically simulates Minecraft’s environment with changing seasons, ecosystem regeneration, and responsive wildlife behavior. Player actions directly impact the world, affecting resource regrowth, animal activity
QuickPing
Useful Client-Side Block Markers for Clear Highlighting
DK HOMES
DK HOMES is a complete Minecraft plugin for managing private homes with an intuitive GUI, Bedrock/GeyserMC compatibility
Acid of Rain
In this plugin, a danger zone has been created that simulates acid rain with four threat levels. A protective suit has also been created to help you survive in this area. You will find yourself in a world where instead of the usual boundaries of Minecraft,
Usefuller Ghasts!
Configure the speed of happy ghasts (up to double speed) and craft an exotic new item that makes your happy ghast shoot fireballs!

Bats N' Berries
A very silly mod to make bats and glow berries more useful.

redstono's recipes back port
this data pack adds the new recipes from minecraft 1.21.6 and above
BasicMMO
Basic MMO features
ChargedCreepers
Turns creepers into charged ones.
Hollow Knight: Silkcraft
Welcome to Silkcraft, this mod aims to bring the kingdom of Pharloom from Silksong into minecraft!
Methane Ice(可燃冰)
"The Methane Ice mod adds a new type of fuel to the game that has a higher combustion efficiency."

Mace Glitch Fix
Fixes the glitch where players abused ghost blocks to keep their mace damage bonus
Sound Radar
A sound radar mod that shows the direction of nearby sounds in Minecraft
TrialStats
Track your Trial progress in real-time with clean UI, smart stats, and seamless integration.

Nice Attributes
This mod adds GUI to attributes
BackpackPro
High-Performance Storage Solution
NitroSkulls
Count the days, collect the skulls!⚡

Netherite Recipes
This Project adds crafting recipes for netherite tools and armor.
Universal Limits
A server-side utility mod for controlling block limits and hard-banning items, recipes, and interactions in large modpacks.
Bingus SMP Content
Extra content made for the Bingus SMP.
SupperBackpack
SupperBackpack - Expandable Inventory System
PintoPlaytime
A simple spigot plugin to track playtime for players and give playtime-based rewards