Minecraft Java 1.21 Mods
Browse 12,077 free mods for Minecraft Java 1.21 — popular picks include IdleConnectionOptimizer, AntiBotBypass | Advanced Idle and Connection Optimizer, AtropisLagGuard.
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IdleConnectionOptimizer
A premium utility designed to optimize idle durations and blending player statistics dynamically.
AntiBotBypass | Advanced Idle and Connection Optimizer
A premium utility designed to optimize idle durations and blending player statistics dynamically.
AtropisLagGuard
Redstone TNT Guard for Better Performance
ChunkBlockLimiter
A lightweight plugin that allows you to configure the maximum number of blocks of a specific type that can be placed per chunk.
VertexaCore: One plugin, two essential features, infinite performance
Ultra-lightweight core: Flicker-free stats and automated alerts with zero TPS impact
FarmOptimizer
FarmOptimizer
TickGuard | In-Game Performance, Exploit Prevention & Lag Management [1.20-1.21+]
Premium in-game performance suite with live TPS graph, hotspot radar, exploit shield, and zero backg
GPUTape
Fix VRAM leaks. Based on VideoTape.
Shiny Armor Trims
Glowing Armor Trims (With Optifine or in Vanilla Minecraft)
APTweaks: Player Login Optimization and Protection (11.x Classic)
Protects players during login and provides a special "easy" mode for less experience and child players.
DrDestens MCShaders
A High Performance Shaderpack with great shadowless Visuals and PBR support
Mob Control: Add custom AI, break blocks, regrowth, spawners, plus more! Bad mobs? Block them! You're in control of your mobs!
Gives you full control over spawning mobs/spawners. Add custom AI to mobs, give them better weapons, and block burning in sunlight. You decide what your mobs do and when they can spawn!
Borderless Glass (No OptiFine Needed) Bedrock Support!
Borderless Glass - A Resource Pack that eliminates the border from all types of glass blocks.
Cobblemon SMP - The #1 Legendary Pokemon Adventure
✅💯 The Ultimate Pokémon Academy! 💯✅ Catch, train, and level your Pokémon with friends in Cobblemon. Enjoy mods included in cobbleverse, Level up, and grow all your mons —starting your cobblemon verse journey! The Best Optimized RPG MMO Experience atm!.🌟
Toms Storage Star Optimized
Lightweight optimization mod for Tom's Storage.
Lootr Liason
Fixes Lootr warnings caused by terrain mods and mimic spawns. Stabilizes structure loot containers with Lootr, waits for worldgen, finalizes each chest once, and, if Artifacts is installed limits mimic rolls so they don’t double-fire or misbehave.
Animated RGB GUI JE (Animatica/OptiFine)
A UI pack to make an animated RGB XP bar, hotbar, and Inventory screens!
Orebfuscator (Anti X-Ray)
High-Performance Anti X-Ray plugin
Ethereal Shaders
High Performance, Best Quality Shaderpack
TickAccelerate
TickAccelerate helps reduce lag by optimizing how ticks work when the servers TPS is low.
Mahi's Connected Grass (No OptiFine Needed) Bedrock Support!
Mahi's Connected Grass - Enhance the visual appeal of grass with connected textures for a more immersive experience.
Sodium Add-on: Substrate
Optimization add-on for Sodium for the bottom and/or top layer(s) of the world
Intermediate Version - Vanilla+ for Minecraft 26.1.2!
A Vanilla+ modpack for Minecraft’s latest versions (e.g., 1.21.11), ~250 mods, new biomes, animals, structures, dimensions, optimized performance...
![LagFixer [1.13-26.2]⚡️Best Performance Solution! ️ 3000+ servers! ✅ Lightweight and asynchronous!](https://pub-2ae937f770284535a96c3330f91236aa.r2.dev/thumb/spiget/28398.webp)
LagFixer [1.13-26.2]⚡️Best Performance Solution! ️ 3000+ servers! ✅ Lightweight and asynchronous!
Optimize your server by reducing entity lag, cleaning up the world and more!
ModernCraft (Distant Horizons)
A modpack based on the Distant Horizons mod, with shaders, performance mods, and a lot of vanilla+ improvements
![VitalityCraft – Vanilla Essentials [New 26.1.2]](https://pub-2ae937f770284535a96c3330f91236aa.r2.dev/thumb/curseforge/219262.webp)
VitalityCraft – Vanilla Essentials [New 26.1.2]
Vitality Craft enhances your Minecraft experience with essential mods that introduce new biomes, objects, mobs, and performance improvements. Dive into a more diverse and challenging world while enjoying smoother gameplay with optimized performance.
Kzn Smp
KZN SMP is a Fabric-based medieval survival modpack featuring custom world generation, skill progression, unique items, and optimized multiplayer performance. Designed for clans, PvP, and long-term progression in an immersive adventure experience.
Neo Otherworld Compatibility Fix
Fixed compatibility issues between multiple mods.
⚡️ SuperiorSkyblock2 ⚡️ The best core on market! ⚡️ 26.2 Support!
Optimized, features packed skyblock core.
ColorFull Optimized ✨⚡
Make your game colorfull again !
Remodeled
Vanilla friendly pack that changes a bunch of textures for the better, Optifine recommended!
msf
Lightweight Minecraft shader creating a smooth blue iris glow with subtle pulsing, prettier and more performance-friendly than BSL.
Chunky Offline (Fabric/Forge/NeoForge/Quilt)
An add-on/extension of Chunky to generate chunks when no players are online.
Saffron
Adds a new, vibrant and varied style to the game - Fabulously Optimized Required!
FPS Optimizer
Reduces FPS when idle/AFK to save resources (customizable)
![Cobblemon Cobbletwo X MegaShowdown [1.7.3] (Pokemon Modpack)](https://pub-2ae937f770284535a96c3330f91236aa.r2.dev/thumb/curseforge/12239.webp)
Cobblemon Cobbletwo X MegaShowdown [1.7.3] (Pokemon Modpack)
Pokemon Cobblemon Pack - QoL and Performance mods! The server included in the pack has Mega Evolution, Paradox and Legendaries Pokemon, Player Gyms, Raids, GTS, and more!