HomeJava1.21

Minecraft Java 1.21 Mods

Browse 69 free mods for Minecraft Java 1.21 — popular picks include SwapBallsReborn [Cobblemon], HSM - Mending fix & Skyblock drill fix, Mr_ChibisMMO.

Updated daily

FiltersPerformance/FPS×Robots×Survival×Clear all
SwapBallsReborn [Cobblemon]
1.21.1

SwapBallsReborn [Cobblemon]

SwapBallsReborn let's you swap your Pokémon's catch ball in survival mode.

262kdownloads
HSM - Mending fix & Skyblock drill fix
1.21.4fabric

HSM - Mending fix & Skyblock drill fix

Fixes the vanilla mending bug that resets the block break progress while also providing the same fix for Hypixel Skyblock drills.

61kdownloads
Mr_ChibisMMO
1.21.11

Mr_ChibisMMO

Survival based MMO for players to have fun in either (Singleplayer, Multiplayer, or Modded) skills such as, "Agility", "Attack", "Cooking", "Defense", "Excavation", "Fishing", "Hitpoints", "Hunter", "Magic", "Mining" & "Commands/Custom World Gen loot".

6.4kdownloads
TNT Logic - Realistic Explosion Physics
1.21.1fabric

TNT Logic - Realistic Explosion Physics

Explosions now trigger realistic, block-by-block structural collapses. Watch entire buildings crumble - one block at a time.

5.8kdownloads
RandomDirtDrops
1.21

RandomDirtDrops

RandomDirtDrops is a fun Minecraft data pack that makes breaking dirt blocks drop completely random items from the entire game — from diamonds to dragon eggs! Perfect for chaotic survival challenges and OP item speedruns.

5.0kdownloads
AutoLandingWater
1.21.5fabric

AutoLandingWater

s long as the player has a water bucket in hand, falling from a height of three blocks or more will trigger an automatic water landing, ensuring the player's survival

4.9kdownloads
Server Optimiser V2
1.21

Server Optimiser V2

Smart server optimization with optional TPS control. Reduce RAM usage 25%. Perfect for survival/skyblock servers. Entity optimization, chunk management, system monitoring.

4.4kdownloads
ShieldStatus Mod
1.21.4fabric

ShieldStatus Mod

This mod adds a simple color indicator — green when your shield is active, red when it’s disabled or recharging. Perfect for PvP and survival players who want better combat awareness without clutter.

4.0kdownloads
Milestone
1.21.1fabric

Milestone

A fresh take on Skyblock. Where almost every mechanic is expanded, every item is obtainable and every thing was made beautifully ♡

3.7kdownloads
Health-Sync
1.8

Health-Sync

Health-Sync -- Link hearts, hunger, and effects with your entire squad! Damage is shared instantly—if one takes damage, everyone feels it. The ultimate Health Share plugin for cooperative survival and hardcore challenges.

3.4kdownloads
GlassSync
1.21.5fabric

GlassSync

A mod for Hypixel Skyblock that fixes the clientside desync of glass pane block states on 1.21. This allows for easier aiming at glass panes for gemstone mining.

3.3kdownloads
Aeternum Seasons
1.21

Aeternum Seasons

A dynamic and realistic station system for Minecraft Survival. Eng & Esp | Plug & Play

3.3kdownloads
Project AZOTH Cobblemon Modpack
1.21.1fabric

Project AZOTH Cobblemon Modpack

Project AZOTH is back and better than ever. Explore a fresh take on the Pokémon experience in Minecraft with seamless open-world mechanics, community-driven events, and an immersive survival adventure.

3.0kdownloads
Better Left Click
1.21fabric

Better Left Click

Allows you to use left click bind like normal but not lose out on the competitive and survival advantage of using a keyboard key.

2.5kdownloads
Inventory-Sync
1.8

Inventory-Sync

Inventory Sync - Inv Sync - Sync inventories, armor, and XP in real-time! The ultimate group item-sharing plugin for seamless cooperative survival. similar used in (GamerFleet) video.

1.8kdownloads
Draventh Ores
1.21.8fabric

Draventh Ores

⚒ Advanced Tier Ores & Equipment This mod expands Minecraft’s survival progression by introducing 15 new late-game materials, each with full armor and tool sets. The goal of this mod is simple: Extend progression beyond Diamond and Netherite with a struc

1.8kdownloads
Gamemode Shortener
1.21.5fabric

Gamemode Shortener

A simple mod the that adds /gmc for /gamemode creative, /gms for /gamemode survival, /gmsp for /gamemode spectator, and /gma for /gamemode adventure

1.6kdownloads
Item Compare
1.21.6fabric

Item Compare

A comparison tool that lets you compare item stats and enchantments side-by-side with visual +/- indicators, including support for Hypixel Skyblock. Simply hover over items and press M to instantly see which gear upgrades are actually better.

1.3kdownloads
Antideath-Carpet-addition
1.21.11fabric

Antideath-Carpet-addition

Antideath-Carpet-addition is a Carpet Mod extension for Fabric Minecraft servers (versions 1.21.x - 26.2) designed to enhance and optimize the game experience. It adds a suite of new loggers for server monitoring and game rules for survival, optimizatio

1.3kdownloads
kutils
1.21.5fabric

kutils

A collection mod of client side qol features and tweaks from older pvp mods but for 1.21+, with unique skyblock and ui features.

1.2kdownloads
Everything from Nothing
1.21.11fabric

Everything from Nothing

A 1.21.11 Expert Skyblock experience built entirely around vanilla mechanics, enhanced only with light QoL & performance mods.

1.2kdownloads
hTreecapitator
1.21

hTreecapitator

Chop down trees by breaking one block! (Timber)

896downloads
Graveling Zombies
1.21

Graveling Zombies

Zombies now drop gravel when killed, letting you double dirt easily and speed up your Skyblock builds!

862downloads
HotbarLoader
1.21.11fabric

HotbarLoader

Save and load hotbars in Survival with customizable keybind combos (e.g. H + J to save, K + J to load). Missing items are simply skipped.

814downloads
DINOsmp Mod - Industrial Evolution
1.21.1neoforge

DINOsmp Mod - Industrial Evolution

A multiplayer-focused modpack emphasizing industrial automation, challenging survival mechanics, and optimized performance for long-term SMP play.

760downloads
Scripted Essentials
1.2.1

Scripted Essentials

A lightweight essentials plugin featuring immortality commands, warp commands, and reduced armor durability drain. Simple, optimized, and perfect for SMP and survival servers.

628downloads
Sandy Husks
1.21

Sandy Husks

Husks now drop sand when killed, with chances increasing using Looting - perfect for Skyblock and fast sand farming!

566downloads
SQBubliks: Restart
1.21.8fabric

SQBubliks: Restart

A reboot of vanilla survival, but with mods, travel, new structures, lots of mechanics, and magic!

557downloads
True Nature
1.21.5fabric

True Nature

Realistic MC is a modpack that makes Minecraft feel real. With enhanced graphics, physics, and survival mechanics, it brings a grounded, immersive experience to your world.

526downloads
UltraSpawners [LITE]
1.21

UltraSpawners [LITE]

UltraSpawners is a lightweight spawner management plugin featuring basic stacking, simple trust permissions, and economy based mob unlocking, designed for survival and economy servers.

508downloads
Sol's Hardcore
1.21fabric

Sol's Hardcore

A typical minecraft hardcore with a few mods that help the player and add some new mechanics

461downloads
QoL
1.21.5

QoL

(1.21.5+), Adds Quality of Life features that everyone needs in their Survival worlds/servers (will also include some of my other datapacks/mods in here)

347downloads
Smp Launch Plugin
1.21

Smp Launch Plugin

SMP Launch is a streamlined and lightweight Minecraft plugin designed to automate the chaotic start of a new Survival Multiplayer (SMP) season. With the simple command /smpstart

344downloads
LogicGates
1.16

LogicGates

Forget about giant Redstone logic gates. All logic gates in one block!

330downloads
Coarizwildtp
1.21

Coarizwildtp

A simple wild teleportation (RTP) that may be integrated in survival servers. It aims to add a more customizable feature (such as world to teleport into) while creating a more optimized outcome.

327downloads
Villager Breeding Tweaks
1.21

Villager Breeding Tweaks

A plugin that decreases villager breeding cooldown and growing age, making villager breeding and growth faster for survival servers and SMPs.

284downloads