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Minecraft Java 1.21 Mods

Browse 336 free mods for Minecraft Java 1.21 — popular picks include Horror vanila RP, p1v's Blood Mod, ShineX.

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Horror vanila RP
1.21

Horror vanila RP

Is a vanilla resource pack with built shaders that adds cinematic visual effects⚡ without requiring mods or OptiFine.📷

143downloads
p1v's Blood Mod
1.21.11neoforge

p1v's Blood Mod

Adds blood particles, mist, decals, blood pools, and bleeding effects to make Minecraft combat more visceral and atmospheric.

136downloads
ShineX
1.21.4

ShineX

ShineX is a premium cosmetic plugin that adds stunning particle effects to your server. Every effect is rendered asynchronously for maximum performance - zero lag, pure aesthetics.

133downloads
Enough Crashes
1.21.11fabric

Enough Crashes

💥 Enough Crashes: The mod that makes Minecraft crash ON PURPOSE when you perform certain actions! Real crashes, humorous messages.

133downloads
LuminolOptimizations
1.21

LuminolOptimizations

Supposed to be a performance and memory optimization plugin for my Minecraft server (LUMINOL)

129downloads
Unobtainable Crafting
1.21.4neoforge

Unobtainable Crafting

Adds crafting recipes for items that seem like they should be craftable but aren't

123downloads
THE HORRORS BUT BETTER
1.21.8neoforge

THE HORRORS BUT BETTER

THE HORRORS adds 4 new biomes more blocks more crafting tables like the de-radioactivator and the improved smelter and the fabricator and it adds more mobs and it is only to get updated more! updates: the start ,NUCLEAR WARNING!!!!!

117downloads
Knightmare's Modpack
1.21.8fabric

Knightmare's Modpack

A collection of mods I normally use, Focused on improving vanilla while not straying too far from a perfect vanilla client

104downloads
Eye Of Ore
1.21

Eye Of Ore

The Unlimited Anti-Cheat Plugin

101downloads
/add
1.21.4neoforge

/add

add a command that works like /give but with ghost items to prank people

98downloads
Smithing Overhaul
1.21.4

Smithing Overhaul

Overhauls smithing table to replace the crafting table.

88downloads
Coalossal Coals
1.21.1neoforge

Coalossal Coals

Progressively better and better tiers of coals with balanced costs for the severely late-game final items.

87downloads
Harbor Folia
1.21

Harbor Folia

A Folia/Canvas port of Harbor for accelerated night skipping on Minecraft 26.1.2 servers.

72downloads
AI Moderator
1.21

AI Moderator

AI-Moderator is a cutting-edge, high-performance moderation system for Minecraft servers (Paper 1.21+). It combines lightning-fast local heuristic filters with the deep contextual understanding of modern AI models (Gemini, OpenAI, Ollama).

70downloads
Set-Up
1.21.1fabric

Set-Up

Removes the narrator, tutorial toasts, and just sets everything up so you can jump right into the game

70downloads
Cursed SMP Recommended
1.21.11fabric

Cursed SMP Recommended

The recommended mods for the Cursed SMP

68downloads
twinkle popo mod
1.21.4neoforge

twinkle popo mod

it adds twinkle popo realistic pikachu and realistic hellokity

63downloads
ArmorStandChunkLimit
1.20

ArmorStandChunkLimit

Set the max limit of ArmorStands for all chunks

59downloads
Pipi Labu
1.21

Pipi Labu

A resource pack that remodel current Minecraft wolf into famous meme "Pipi Labu". Utilize the features of Optifine (ETF & EMF) with custom sound effects

56downloads
This Vexes me
1.21.8

This Vexes me

A shitpost mod that changes the vex. Optifine model changer mods required

54downloads
JoinFailNotifier
1.15

JoinFailNotifier

A plugin that notifies the OP when a player is unable to join the server. プレイヤーがサーバーに参加できなかった際にOPに通知するプラグイン

51downloads
FrameChunkLimit
1.20

FrameChunkLimit

Set the max limit of Frames for all chunks

49downloads
PaintingChunkLimit
1.20

PaintingChunkLimit

Set the max limit of paintings for all chunks.

46downloads
GamemodeCheck
1.14.4

GamemodeCheck

Check a player's game mode or list all players by game mode. プレイヤーのゲームモードを確認できます。 ゲームモードの一覧も見ることができます。

43downloads
NoEconomy
1.13

NoEconomy

A useless Vault economy implementation.

35downloads
OneStackMax
1.21.5

OneStackMax

A datapack that makes all items unstackable

29downloads
Fleshy Anvils & Inventories!
1.21

Fleshy Anvils & Inventories!

An animated fleshy reskin for the inventory, recipe book, and anvil! In order to use this resource pack, you must also have optifine or animatica!

27downloads
McLinuxBridge
1.8

McLinuxBridge

Execute and stream live Linux/macos or Windows terminal of your free public server hoster server commands asynchronously directly from your Minecraft chat or console panel.

26downloads
Lemmy Birch Set
1.21.11

Lemmy Birch Set

Change the look of the Birch family of blocks and replaces them with a generic player skin. This pack rewrites the appearance of blocks and has support for optifine texture connection. This will largely be unupdated as it is a personal project of mine.

19downloads
Guardian Portal Optimization
1.21.11

Guardian Portal Optimization

Optimizes Guardians that go through a Nether Portal. Allows for afk farming alone.

11downloads
Ancient Dream Shaders (26.2, 1.20.1) – Horror Shader For Immersive Ambience
1.20.1

Ancient Dream Shaders (26.2, 1.20.1) – Horror Shader For Immersive Ambience

Ancient Dream Shaders is designed to add a subtle horror vibe to Minecraft without hurting performance. It introduces stylized visual effects that bring an eerie. Screenshots: Ancient Dream Shaders Download Links For All Versions from Minecraft 1.7.10 to Minecraft 1.21.10, 1.21.8, 1.21.5, 1.21.4, 1.21.3, 1.21.1, 1.20.1 Download from Server 1 – Download from Server 2

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1.20fabric

"Faster" Particle Collisions

A standalone version of one of Methane's particle optimizations

98kdownloads
B
1.21.1neoforge

Be Quiet Negotiator

Be Quiet Negotiator is a client-side NeoForge mod that lets you connect to vanilla or non-NeoForge servers by silently skipping NeoForge handshake negotiation, preventing common handshake errors and enabling smoother connections.

58kdownloads
R
1.21.2

Reactify

Compatibility library for Brutal Nightmare

49kdownloads
E
1.21.8fabric

ElytraMace

A client-side mod that allows player trigger Mace's smash attack while surfing

24kdownloads
O
1.19.4

OldFashionedLimits

Old fashioned height limits (from pre-1.17 versions)

6.4kdownloads