Minecraft Java 1.21 Mods
Browse 1,710 free mods for Minecraft Java 1.21 — popular picks include ChunkEcho, Rarer Ores, PrivateWorldSystem.
Updated daily
ChunkEcho
Every block placed or broken echoes across all loaded chunks. A chaotic co-op minigame — spread out, build, and watch your actions ripple across the world to all players.
Rarer Ores
Makes all ores twice as rare. Compatible with Mythic Metals.
PrivateWorldSystem
Gives each player their own private world that they can lock and invite friends to. Controls are handled entirely via a compass in the inventory.
Enderman Spawns
This is a very customisable plugin where you can easily change the number/percent of enderman that spawn
Ghost RTP
A lightweight RTP plugin which allows the user to teleport to a random location in all 3 dimensions.
albins mixed ores
A small mod that adds mixed ores to Minecraft. Each mixed ore drops resources from two different vanilla ores, giving mining a fun new twist. with beautiful loot tables for the mixed ores and different stone ammalgams while still keeping it vannila+ (:
End Recipes
Datapack to add custom recipes replacing cobblestone with end stone for stone things, and adding ways to get things like wood, blaze rods and saplings without going to other dimensions.
Tom's Loot (Dp Edition)
This datapack adds a variety of loot tables and can be used by other mod developers for structure mods and other mods with loot tables as a basis. Datapack Edition
Chunk plugin
A custom chunk plugin, that allows players to have there own chunk and upgrade it!
WildlifeRarities
WildlifeRarities is an RPG-focused plugin designed to make hunting and exploration more engaging and rewarding on your server. It is perfect for servers with collectors, progression systems, or economy-based gameplay.

NoTallGrass
Do you dislike Tall Grass being a part of bonemeal? This mod allows you to use bonemeal without generating Tall Grass by left clicking.
Camille's Small Ruins
This datapack adds a bunch of small ruins generating throughout the overworld.
Relocation
A simple building relocation plugin
Endless Ancient Cities
A new dimension with infinite ancient cities just floating above the void
P_Ilha
P_Ilhas is a native island system for Paper 1.21.3 servers, designed to provide VOID worlds, private dimensions, native protection, progression, economy, pets, rankings, and production administration in one plugin.
WorldToggle
WorldToggle is a lightweight and seamless administration tool that lets you instantly enable or disable access to the Nether and End dimensions without restarting your server.
Minespar: Simple Mining Dimension
A mining dimension ripe for your resource conquesting needs.

Explorer's Badges
Reward the player with a badge for exploring and discovering new biomes, awarding a different badge for each biome as well as a stat boost for each badge.
DimensionCore
Worlds & dimensions for Paper: a YAML world registry loaded on startup, safe scheduled world resets with warnings and evacuation, a lockable resettable End with a rotating outer End, Ender Dragon respawn, rewards & island protection
New Chunk Alerts
A Paper server plugin that notifies players when they are generating brand-new chunks! Let players on your server know when they are exploring uncharted and unlooted territory with little to no impact on performance.
advancement gaurd
This plugin is custom made for the paper servers who need to stop players getting nertherite and going to the end, both of these will result in a insta temp ban of 30 days
Dimension Sickness
Getting Sick of Staying in Dimensions
MYskript - TPA
A simple and lightweight plugin that allows players to send teleportation requests to each other.
hLuckyBlock
Automatic zone-based lucky blocks with weighted types, multi-hit durability, Base64 textures, dynamic TextDisplay holograms, configurable rewards and safe cleanup.
Unender Thy Chests
Completely removes Ender chests. Not just the crafting recipe.
The Voidland
This mod ads a completely new biome: The Voidland, some new gear (armor still not included(will be added in future)) and new mobs!
Lava Rising Premium
a basic lava rising plugin with premium features
FrontierX
Expand the world border by completing advancements. Start in a tiny world and unlock more land as your players progress.
CollsionsToggle
Simple plugin that allows players to toggle player collisions on and off.
Minecraft But Everything Extremely Is Random
🎲 Break blocks, defeat mobs, and get completely random items! Can you survive the chaos and defeat the Ender Dragon? 🐉
Adaptive Difficulty PAPER
AdaptiveDifficulty — A dynamic Minecraft difficulty plugin that automatically adjusts the world based on each player's progression. This plugin is mostly Adaptive Difficulty mod but for paper/bukkit servers, i wanted for all players to experience 0 mods
CoordinateOffset (Folia Fork)
CoordinateOffset for Folia — a fork of joshuaprince’s CoordinateOffset that obfuscates player coordinates on Folia servers. 99.99% of the work is upstream; this port adds Folia-compatible schedulers and region threading support. Requires PacketEvents.
Minecraft But Everything Is Alive
🧱 Break blocks, but beware they might come alive! 🎲 Face random mobs, survive the chaos, and defeat the Ender Dragon! 🐉

Eternal Ores
This Mod Adds 3 Mettals For Each Dimension. They Are Far Stronger Than Netherite. There Are Magical Wands, That Shoot Custom Fireballs.
SafeVillages
Prohibit monster spawning in generated villages
Taking Damage Deletes an Item
A Minecraft Data Pack that deletes one random item from your inventory every time you take damage.