Minecraft Java 1.21 Mods
Browse 433 free mods for Minecraft Java 1.21 — popular picks include ResourcePackCached, CoreProtect, LagFixer.
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ResourcePackCached
Keeps server resource packs loaded, so they don't need to be reloaded when you rejoin.
CoreProtect
CoreProtect is a fast, efficient, data logging and anti-griefing tool. Rollback and restore any amount of damage. Designed with large servers in mind, CoreProtect will record and manage data without impacting your server performance.
LagFixer
⚡️ Best Performance Solution! 🗄️Trusted by 3000+ servers! ✅ Lightweight and highly Asynchronous!
Highlighter
Highlights items in your inventory different colors depending on their enchantments and types.
Enchanted Bookshelves
Enchanted Books will glint when put in Chiseled Bookshelves! Give your enchanting room a cosmetic shine!
Texture Pack Folders (Like Recursive Resources)
Mod allows folders with packs in them to work, mainly for organization. (Like recursive resources)

InventoryTweak
Fast and easy inventory sorter
FastChest Revived
Makes chests use static models rather than BlockEntities for better performance
InstaRestock
Instant Restock or Insta Restock makes villagers infinite restock
Cobblemon Auto Tidy Up PC
An add-on for the Cobblemon mod that automates storage on your PC. This is a client display only.
Double Hotbar
Adds a second hotbar that displays a row of the inventory on the HUD. This provides a dual hotbar setup where you can easily swap/hotswap/cycle which of the two hotbars is active. Improves inventory management.
Item Components
Change the default components for items! Server-side and data-driven, refreshes on /reload! (and does it properly)
Too Much XP (TME)
Yeets the laggy XP orbs, whilst still maintaining a high level count
Open Inventory
OpenInv is a powerful Minecraft admin plugin that lets staff view and edit player inventories and ender chests using /inv commands, featuring a modern GUI, database-backed inventory snapshots, rollback support, and multiple Minecraft version support.
SimpleClaimSystem
Full claim system for Minecraft servers. Fully configurable and many plugins supported.
Create: Direct Chute
Adds a new chute that transfers items directly from one container to another, without storing any item inside. Optimizes storage and performance
Armor Status
Displays your armor durability and status in real time with a clean, lightweight HUD.
Neo ECO AE Extension
Neo ECO AE Extension is an addon for Applied Energistics 2, Provides higher-performance components
Create: Meta Logistics
Manage remote & unloaded storage networks in Create, access them locally, and design central logistics hubs.
Bundle Scroll
Unlock the full potential of bundles by cycling through the contents of a bundle using the scroll wheel
PerfoBooster
Delivers powerful server optimization through intelligent resource management.
Shulker Plus
Open shulker boxes directly from your hand without placing them down.
Fast Recipe
Adds quick crafting in the recipe book. Press [Ctrl + LMB] on a recipe to craft it instantly.
Create: Dimension, Steamworks Realm
Create: Dimension, Steamworks Realm introduces a brand-new mining-focused dimension, designed for automation and large-scale resource extraction. This world is filled with rich veins of ores
RainApricot Spawn Notification (for Pixelmon)
This mod sends in-game notifications immediately when BOSSes, Legendary Dens, Legendary Pokémon, Master Ball Reward Chests, and wild Shiny Pokémon appear in your Pixelmon world, ensuring you never miss them again!
Console Spam Fix : Reborn
A log filter that hide configured messages or errors from console and logs.
BlazeXRemake
BlazexRemake is a lightweight, performance-focused Minecraft client based on a Feather Client remake, featuring a custom Blaze-inspired UI and built on Fabric for smooth gameplay and modern visuals.
Lusk
Modern, user-friendly skript addon, perfect for beginners and experienced developers.
AzAuctionHouse
AzAuctionHouse is a feature-rich auction house plugin that allows players to buy and sell items seamlessly on your Minecraft server. Built with performance and customization in mind.
PlayerProgress
PlayerProgress is a Minecraft datapack that introduces a leveling system. Earn UP from activities like mining and combat to level up and gain new abilities and rewards.
Spectra Better Chests
Adds inventory sorting. One of the biggest missing features from Minecraft.
[MODIFIED] Cobblemon: Essentials
The perfect balance between performance, yet still packed with features! CREATE, Backpacks, QOL, & More!
World Loading Tweaker
Allows you to change the spawn chunk radius of Minecraft, either speeding up loading or improving spawn quality
ChestSort
Effortlessly sort your chests with a double-click!
AlixSystem
Login (Command, PIN, Anvil, 2FA) | AntiBot (Advanced) | AntiVPN
PerformanceX
Struggling with LAG??? Look no further! PX is an All-in-one server performance suite - 50 modules including item/mob despawn timers, AI throttling, lag machine detection, auto backups, Discord webhooks, Geyser support, and more. 1.8.8-26.2.