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Minecraft Java 1.21 Mods

Browse 2,173 free mods for Minecraft Java 1.21 — popular picks include see invis players, DeckyCraft, Simply Smoother.

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see invis players
1.21.11fabric

see invis players

(See Invis Players) allows you to see invisible players as slightly transparent bodys

5.8kdownloads
DeckyCraft
1.21.4fabric

DeckyCraft

This pack has everything you need to play Minecraft on Valve's Steam Deck.

5.8kdownloads
Simply Smoother
1.21fabric

Simply Smoother

Your go-to, bare-bones performance modpack.

5.7kdownloads
SMP Mods Server
1.21.4fabric

SMP Mods Server

A easy to install server for a HermitCraft style experience.

5.5kdownloads
Horror OneBlock
1.21.1neoforge

Horror OneBlock

OneBlock survival with horror mobs, dwellers, guns, shaders, and Create automation.

5.5kdownloads
jelly pack
1.21.7fabric

jelly pack

pack with some essential client mods for jelly and friends :)

5.5kdownloads
简约生电优化 Simplicity Survival Optimization
1.21.6fabric

简约生电优化 Simplicity Survival Optimization

简约的,生电整合包,更好的优化 simple, survival-assisted modpack, better optimizations

5.4kdownloads
Clay Crafting
1.21.1neoforge

Clay Crafting

Craft into clay balls instead of mining...

5.4kdownloads
spearcore lite🟣
1.21.11fabric

spearcore lite🟣

A clientside spear based mod that automates attribute swapping, range extensions, dashing, and more.

5.3kdownloads
kookykraft
1.21.1neoforge

kookykraft

Master advanced tech and powerful magic to explore a world of dragons and wizards.

5.3kdownloads
PokeGalaxia Cobblemon
1.21.1fabric

PokeGalaxia Cobblemon

PokeGalaxia is an MMORPG-style Cobblemon server featuring an economy, missions, cosmetics, seasonal events, crates.

5.3kdownloads
Winterlands
1.21.1neoforge

Winterlands

A cozy, frosty winter survival experience with festive Christmas ambience, custom worldgen, and polished performance.

5.2kdownloads
Create Aeronautics Expanded | Core
1.21.1neoforge

Create Aeronautics Expanded | Core

The best multiplayer-friendly well-optimized Create Aeronautics modpack without unrelated mods ! Regularly updated !

5.2kdownloads
PathSpeed
1.21.11neoforge

PathSpeed

Walk faster on paths and roads — a server-side speed boost where every block gets its own speed, so better road materials are genuinely faster. Works on vanilla clients with no client install.

5.2kdownloads
SMP
1.21.11fabric

SMP

A modpack with QOL/performance mods.

5.2kdownloads
Custom Clear Lag
1.21.4neoforge

Custom Clear Lag

Optimal Fluidity, Enhanced Experience

5.2kdownloads
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.

5.1kdownloads
Better Journeys
1.21.11fabric

Better Journeys

Vanilla+ Modpack, focused on exploration, nature, and good vibes!

5.0kdownloads
vanilla PvP
1.21fabric

vanilla PvP

mods that make your game feel 10x smoother with 1k+ fps & optimize it for pvp!

5.0kdownloads
Protect
1.21.4

Protect

A WorldGuard-like, modern world protection plugin made for API usage

5.0kdownloads
Sundawn
1.21.3fabric

Sundawn

Enhance your vanilla Minecraft experience with immersive and technical mods.

4.9kdownloads
Create Evo Era - Space & Tech
1.21.1neoforge

Create Evo Era - Space & Tech

Create 6.0 Tech Modpack NeoForge 1.21.1. Over +250 Quests recipes KubeJS. Highly Optimized Expert Progression. Immersive Engineering Nuclear Power Aeronautics Northstar SPACE travel

4.9kdownloads
Damine
1.21.11fabric

Damine

Damine is a performance-friendly modpack by me, featuring beautiful shaders, a minimap, 3D resource packs, and much more. For lower-end PCs, try Damine Optimized for even smoother gameplay.

4.9kdownloads
Cycodly Performance
1.21.11quilt

Cycodly Performance

With shader settings and only 25 mods, this modification pack will optimize your Minecraft experience for the pure performance.

4.8kdownloads
像素城_魔法核心整合包【PixelCity_MagicCore Modpack】
1.21.11fabric

像素城_魔法核心整合包【PixelCity_MagicCore Modpack】

《像素城》魔法核心整合包(1.21.11版),专注生存红石工程。为自动化系统、多人性能优化及技术向Minecraft玩法量身打造。PixelCity MagicCore Modpack (1.21.11) for Survival Redstone Engineering. Optimized for automation systems, multiplayer performance, and technical Minecraft gameplay.

4.8kdownloads
Shulkers In Shulkers *updated version*
1.21.1fabric

Shulkers In Shulkers *updated version*

The updated version of Shulkers In Shulkers for the later versions of minecraft. Supports 1.20.1-1.21.6

4.7kdownloads
LightOptimizer
1.17

LightOptimizer

Optimize your Minecraft server for peak performance with LightOptimizer.

4.7kdownloads
Create: Mortar - Mango Edition
1.21.1

Create: Mortar - Mango Edition

A Create Addon Compat Mod / Data Pack

4.7kdownloads
BTW - Ore Breaking
1.21.1neoforge

BTW - Ore Breaking

An ore mining overhaul to increase mining experience

4.7kdownloads
Origins: Omnix/Omnitrix
1.21

Origins: Omnix/Omnitrix

Before Azmuth created Omnitrix, There was a beta version and it was tested with a strange DNA system called Origins.

4.7kdownloads
Valx' EssentialF3
1.21.10fabric

Valx' EssentialF3

Essential F3 is a Minecraft mod that replaces the cluttered F3 screen with a cleaner, easier-to-read version.

4.7kdownloads
WorldListTrashCan
1.12

WorldListTrashCan

More Than Just a Cleanup Plugin

4.7kdownloads
Performance modpack (Extreme FPS)
1.21.10fabric

Performance modpack (Extreme FPS)

Ultimate FPS Boost Modpack The Ultimate FPS Boost modpack is perfect for players looking to optimize Minecraft's performance on a wide range of systems, from low-end laptops to high-end PCs. This pack includes a curated selection of the most effective opt

4.7kdownloads
Boundless Horizons
1.21.1neoforge

Boundless Horizons

All the best and custom mods from Forge and Fabric perfectly balanced. Running on 1.21 NeoForge.

4.6kdownloads
Create: Multiplanar Crafters
1.21.1neoforge

Create: Multiplanar Crafters

Create: Multiplanar Crafters is a lightweight, high-performance addon for the Create mod that completely revolutionizes the Mechanical Crafter. It finally unlocks the ability to orient your crafting grids horizontally (along the X/Z axis), facing the sky !

4.6kdownloads
Pause Server When Empty
1.21

Pause Server When Empty

A datapack that automatically pauses the daylight and weather cycles when no players are online.

4.6kdownloads