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Minecraft Java 1.21 Mods

Browse 741 free mods for Minecraft Java 1.21 — popular picks include CreaMon, BsruAutoShutdown, G.F.Y (Good for you).

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CreaMon
1.21.1neoforge

CreaMon

A Minecraft modpack focused on Create automation, Cobblemon adventures, exploration, creature catching, and quality-of-life improvements.

41downloads
BsruAutoShutdown
1.21

BsruAutoShutdown

Automatically and safely shuts down empty Minecraft servers to save resources. Perfect for network environments with On-Demand startup systems.

40downloads
G.F.Y (Good for you)
1.21.1neoforge

G.F.Y (Good for you)

A custom lightweight modpack focused on technology magic and exploration

37downloads
Electronium Refined
1.21.1neoforge

Electronium Refined

The cure to the 2-week Minecraft phase. A deeply optimized, long-term Vanilla+ adventure with seasons, exploration, and a touch of Create.

34downloads
CitrusSMP
1.21.1fabric

CitrusSMP

A curated SMP experience built around exploration, rivalry, and seasonal storytelling. Fresh world, high stakes, no rules required.

33downloads
xOptimize
1.21

xOptimize

Advanced Professional Server Optimization Plugin

33downloads
TitanFall SMP
1.21.1neoforge

TitanFall SMP

TitanFall SMP is an optimized multiplayer modpack centered on expansive world exploration, seamless performance, and advanced automation powered by the Create mod ecosystem.

32downloads
Cobalt Age
1.21.11fabric

Cobalt Age

An expanded redstone, up to 60 power lenght, waterloggable, optimized, with vertical relays, incompatible with redstone, and blue! It comes with minerals and block sets.

30downloads
Super Little Create Modpack (SLCM)
1.21.1neoforge

Super Little Create Modpack (SLCM)

Dive into an immersive Minecraft adventure focused on engineering, exploration, and creativity.

28downloads
shepherds house repair
1.21-pre3

shepherds house repair

Fixed the issue where the Shepherd house could not be generated

25downloads
New Chunk Alerts
1.21.11

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.

14downloads
Shaderless Fullbright Resource Pack (26.2, 1.21.11) – Texture Pack
1.21.11

Shaderless Fullbright Resource Pack (26.2, 1.21.11) – Texture Pack

Shaderless Fullbright Resource Pack cleverly simulates a fullbright effect using emissive block models-no shaders required. This makes it a great choice for players who want clear visibility in dark areas without relying on external mods or performance-heavy shader packs. It’s especially useful for cave exploration, building at night, or content creators who need consistent lighting. […]

Sky Scape HD Resource Pack (1.21.1, 1.20.1) – Texture Pack
1.21.1

Sky Scape HD Resource Pack (1.21.1, 1.20.1) – Texture Pack

Sky Scape HD Resource Pack completely overhauls the game’s sky with high-definition clouds, improved lighting, and more realistic atmospheric effects. It introduces biome-based sky variations, meaning each area features its own unique sky tone and mood, making exploration feel more dynamic and immersive. Despite its enhanced visuals, Sky Scape HD remains performance-friendly and runs smoothly […]

Tickrate API Mod (1.21.1, 1.20.1) – Developer And Player Tickrate Control
1.21.1neoforge

Tickrate API Mod (1.21.1, 1.20.1) – Developer And Player Tickrate Control

Tickrate API Mod provides developers and players with tools to manipulate tickrates for entities, dimensions, and specific areas. Unlike the /tick command, this mod was developed independently and offers deeper customization for both mod creators and server admins. Features: Fine‑tuned control over entity behavior and performance. Useful for mod developers, server admins, and advanced players. […]

Krypton Renamed Client Mod (1.21.1) – Ghost PvP Utility Client
1.21.1fabric

Krypton Renamed Client Mod (1.21.1) – Ghost PvP Utility Client

Krypton Renamed Client Mod is a Ghost Client for Minecraft, focused on PvP, crystal PvP, and utility enhancements. It is designed to be hard to detect, improve PvP performance, and provide support for survival, exploration, farming, and combat. Features: Crystal Auto Crystal – automatic placement and breaking of end crystals Auto Hit / Anchor Macro […]

Noisium Mod (1.21.8, 1.20.1) – Optimize Worldgen Performance
1.21.8forge

Noisium Mod (1.21.8, 1.20.1) – Optimize Worldgen Performance

Noisium Mod is a mod that improves the performance of world generation in Minecraft. It does this by making changes to some of the world generation functions that other mods don't touch. The most notable change is to NoiseChunkGenerator, which is optimized to speed up block placement when generating new chunks. Three other smaller optimizations […]

WF's Cave Overhaul Mod (1.21.4, 1.20.1) – New Cave Gneration
1.21.4forge

WF's Cave Overhaul Mod (1.21.4, 1.20.1) – New Cave Gneration

WF's Cave Overhaul Mod introduces an entirely new cave system into the game. This new cave system is built from the ground up and promises to make caves a lot more exploration and performance oriented. The creator of the mod has put a lot of thought into making this mod highly compatible with pretty much […]

Chunk Sending Mod (1.21.1, 1.20.1) – Stop Lag When Teleporting
1.21.1neoforge

Chunk Sending Mod (1.21.1, 1.20.1) – Stop Lag When Teleporting

Chunk Sending Mod optimizes how servers send world data to players. It sorts and sends chunks over time, which makes logging in, teleporting, and changing dimensions feel much smoother. This helps reduce lag spikes, making the game more playable for people with slow internet connections. The mod only needs to be installed on the server. […]

Aesthetic And Performant Mod (1.21.1) – Boost Your Game's Performance
1.21.1fabric

Aesthetic And Performant Mod (1.21.1) – Boost Your Game's Performance

Aesthetic And Performant Mod is designed to enhance Minecraft's performance by reducing the noise layers in terrain generation to just one, freeing up resources that can be allocated to mods and aesthetic enhancements. Features: Performance Boost: Reduces terrain generation noise to improve overall game performance. Optimized for Mods: Allows more resources to be dedicated to […]

Dimensional Threading Reforked Mod (1.21.1, 1.20.1) – How To Optimize Multi-Dimensional Gameplay
1.21.1forge

Dimensional Threading Reforked Mod (1.21.1, 1.20.1) – How To Optimize Multi-Dimensional Gameplay

Dimensional Threading Reforked Mod optimizes the processing of multiple dimensions by assigning them to independent threads. This mod enhances performance on both the client and server sides without requiring installation. Features: Independent Thread Processing: Assigns each dimension its own thread, optimizing performance and reducing lag. No Dual Installation Required: Does not need to be installed […]

New Lightweight Modpack (1.21.1, 1.20.1) – Optimized For Any Computer
1.21.1

New Lightweight Modpack (1.21.1, 1.20.1) – Optimized For Any Computer

The New Lightweight Modpack is an amazing addition to your Minecraft adventures, designed to work smoothly on most devices. Featuring 200 fantastic mods, it enhances the game by adding new biomes, animals, enemies, structures, and decorative elements. Despite having fewer mods for better optimization, it greatly expands the gaming experience. Most changes are focused on […]

T
1.21.1fabric

TerraBlenderFix

Fixes a performance issue related to TerraBlender's surface rule api

727kdownloads
O
1.19.4

OldFashionedLimits

Old fashioned height limits (from pre-1.17 versions)

6.2kdownloads
B
1.21.1neoforge

bergamotMC

enhanced vanilla gameplay focused on adventure and exploration for bergamotLabs

1.3kdownloads
A
1.21.1neoforge

An0n's Playground

Astra's vannila+ pack featuring Create, DH, TACZ, and enhanced worldgen. Tested on multiple platforms.

1.2kdownloads
O
1.18

OldYLevels

Changes the Overworld height to the old Y range, 0-256. This will basically crop off parts of your world if you don't pregenerate the world on an earlier version of the game.

411downloads
T
1.21

TNT Regeneration

Automatically regenerates blocks destroyed by any type of explosion (TNT, Creepers, Ghasts, Withers, etc.) with configurable delays and smart detection.

346downloads
V
1.21.5fabric

Vanilla+ Disable Portals

Easily restrict player movement between dimensions Легко ограничивайте перемещение игроков между измерениями

316downloads
A
1.21.1neoforge

Aoura MC

Adds vanilla improvements bosses' new biomes terrain etc.

312downloads
G
1.21.4fabric

Gdrees's ModPack

Gdrees’s ModPack is a custom collection designed to enhance both performance and exploration. Tailored for seamless multiplayer experiences, it optimizes game performance with FPS-boosting mods and enriches adventures.

257downloads
N
1.21

Netherite Blocker

This datapack completely prevents Ancient Debris (Netherite ore) from generating in newly created Nether chunks. It works by overriding the vanilla placed features that control where and how Ancient Debris spawns.

246downloads
C
1.21

Chunk Cleaners

A performance focused, highly optimized, chunk cleaner plugin for Paper 1.21+ that allows players to remove all blocks and entities within a chunk. This is a well sought after feature for Factions and Survival servers.

182downloads
T
1.21.1neoforge

TPS - Colonies

Better world generation and quality of life improvements.

122downloads
C
1.21

ChunkOptimizer

This plugin optimizes how the server renders chunks, reducing CPU and RAM usage.

112downloads
S
1.21.1fabric

Simply Better : a simple experience(kinda)

this modpack simply makes minecraft better by adding new structures, new mechanics, new equipment and new mobs without making it too complex.(simply better, duh)

103downloads
N
1.21

No Caves and Ravines

This Project Removes all of Caves and Ravines In your World. Good luck :)

84downloads