Minecraft Java 1.21 Mods
Browse 12,087 free mods for Minecraft Java 1.21 — popular picks include Lagmanager, ANG3LICXL's Simplistic ModPack, redstone-refined.
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Lagmanager
This plugin monitors redstone entity lag and keeps your TPS high through optimization ideal for server admins.
ANG3LICXL's Simplistic ModPack
A simplistic survival modpack. No big mods except for biomes o' plenty.
redstone-refined
A redstone-focused modpack with building tools and performance improvements. Build complex systems lag-free.
EclipseFRCraft
Un Modpack Solo en 1.21.4 pour optimiser les performances et sublimer vos mondes solo. A Solo Modpack in 1.21.4 to optimize performance and enhance your solo worlds.
TWIY (The World Is Yours)
Experience Minecraft like never before with our vanilla plus modpack for 1.21, designed to enhance your gameplay while maintaining the beloved original aesthetic. This modpack features stunning visual enhancements, such as improved lighting and textures,
SinceEnchantments
The Ultimate, Highly-Optimized RPG Custom Enchantment System for PaperMC
SMPEnhanced+
A comprehensive plugin built for survival multiplayer servers that want fine-grained control over combat balance, limits, and quality-of-life improvements which are all configurable in-game.
CRTP Plugin | Paper + Folia Support
A simple rtp plugin for your server with optimized and premade gui
Vanilla Plus by TheW4NT
This is a modpack that adds and alters mechanics and structures from vanilla Minecraft, making survival more challenging and offering a world with a wider range of exploration without being excessive.
Building Update
Be ready to craft amazing new blocks with the stonecutter! Terracotta and concrete stairs, slabs and walls, and stairs and glass walls, be ready!

Ultimate-PackPL
Normal survival modpack client-side
Yurei-Jima RP | Official Modpack
The official mod pack for Yurei-Jima RP! Designed to enhance your roleplay immersion and optimize your gameplay with a selection of lightweight mods.
Automatic messages
Automatic messagese plugin with nice design
SkyQoL
A Hypixel Skyblock modpack that improves your quality of life by adding a lot of useful features!
Server Boostium
Set Of Performance Mods To Get Best Experience Out Of Your Server And Making Server Run Multithreaded | ☑️ up to 17x Faster Chunk Generation
VKD Client
A client optimizes the game and also make you game looks better!
Craft Complete
Complete crafting recipes such as name tags, dyes, and others.
Forbis's shader !
This is my own shader, i made just for fun. It add a vignette and fullbright
ViewDistanceTweaks - UPDATED
Your server. Your performance.
Norzumi
Norzumi Modpack Features: Performance focused for low-end PC/Laptops. Vulkan and Sodium based rendering Optimized for PvP and smooth gameplay

Stardivers
Modpack for the Stardivers Create Aeronautics server
Amplified Nether Fix Biome
This mod fixes the biome detection issue with amplified Nether that increase the Nether's height to Y256 or higher, this ensures that biomes are detected vertically up to Y512.
MF HyperFPS
MF HyperFPS is a lightweight Fabric modpack that massively boosts Minecraft FPS and reduces lag. Experience smooth, fast, and buttery gameplay even on low-end PCs.
Console Refined
Mixing modern enhancements with the console experience to keep the game performant and pleasing.
Rotten flesh to leather(RFTL)
The ultimate utility for turning excess Rotten Flesh into useful Leather. Highly configurable and performance-friendly.
Bulk Crafting
Skip intermediate crafting steps, like crafting Chests directly from Logs! Check the Gallery tab for more details and recipes.
Ohne-Schnickschnack
This modpack is focusing on smooth gameplay and quality-of-life improvements.
Ulitmade 3D Totems
Give the totems specific names and transform them into different 3D totems. ⚠️Important: Sodium and Iris Shaders are required⚠️
LagAttack
A lightweight vanilla improving modpack for the newest version of minecraft. You can use this modpack to play on the "LagAttack" Server
RE-D.O.N.E Client(Minewind modpack)
A Whole-ahh experience of a client made By me(Formerly known as D.O.N.E client)...
Better on Fabric
an quality of life improvements and visual enhancements modpack that make game better but keep diffault game look.
Cobblemon Citrus & Berry
A Cobblemon centered modpack intended to be played in multiplayer. Features exploration, quality of life, and performance mods in addition to Cobblemon.
BannerForLabyMod
Display a custom banner over the tab, simple and easy (LabyMod 4 required)
VaniCraft
Minecraft Client-Side Modpack: Boost Your Performance and Play on Any Vanilla Server with your own mods!
Mashed
A collection of ease of life tweaks. Auto Harvest Crops Copper Ores Drop Coal Bat Membranes Death Coordinates Counter Wool To String Ore Generator Fast Ascend Climb Swim Dirt Path Bark Stripped Logs

Flor1d_ PVP Optimization 16x
A resource pack for both amateur and professional Minecraft PvP players. It's suitable for everyone, even for low-end PCs, as it features optimized 16x textures.