Minecraft Java 1.21 Mods
Browse 1,939 free mods for Minecraft Java 1.21 — popular picks include WorldPreventer, craftable netherite upgrade, FrpPlugin - Minecraft服务器内网穿透插件.
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WorldPreventer
Prevents your Worlds from being downloaded
craftable netherite upgrade
making netherite smithing simpler and more balanced
FrpPlugin - Minecraft服务器内网穿透插件
FrpPlugin is a Bukkit plugin for Minecraft servers that facilitates intranet penetration by integrating with the frp client. This plugin offers features such as automatic downloads and updates of the frpc client, mirror acceleration for faster downloads, s
世界存档优化器(自动异步保存)
世界存档优化器，可以自动保存您的服务器世界，采用异步保存。World Archive Optimizer, can automatically save your server world using asynchronous saving. Bukkit 1.21
Command Block Spy
[Open Source] Monitor/Intercept Server Command Block
rRestart
rRestart is a lightweight and reliable plugin for automatically or manually restarting a Minecraft server without losing data and with other players.
EntryCode
Secure your server with customizable entry codes!
Boxduel
Advanced Duel system specially optimized for BoxPvP and BoxMining servers with high-performance kits. (just for Turkiye.)
ManageAFK
with this PLUGIN you can customize the AFK in your server with style and with lots of features and optimization for no performance issues.
Bagel's Admin Tools
Easy to use admin tools, such as vanish, invsee, announcements, cleanup, and more.
YugiTotem
YugiTotem is a custom Minecraft Fabric client-side mod focused on improving gameplay with useful features, smooth animations, quality-of-life improvements, and customizable tools. It includes features like a smooth Zoom system and more client enhancements
SwiftSteed
SwiftSteed is a lightweight, performance-optimized Fabric modpack that enhances the vanilla experience without altering its core mechanics.
VirtualFilter
Professional Independent Virtual Filtering System
ElevatorPro
The ultimate high-performance, survival-friendly vertical transport solution.
Mineplus Visuals
Usually, everything is a bit stiff and robotic, but Mineplus Visuals changes that. It makes the world look like a cinematic movie while actually making it run smoother than the basic game.
Craftable Wither Rose
This data pack adds a crafting recipe that transforms 8 wither roses into 16 wither roses.
ADQ TWEAKS
Tweaks to the Aeronautics Delivery Quest mod (or TNM), that remove the lag it causes, adds new configs, and a PvP mode.
PlayerMapX
You can see your own server maps and players and their inventory, Rebranded from SNKAWatchMap
SmartLagGuard
Monitor your server performance in real-time. Keep TPS and MSPT stable for smooth gameplay.
CrossTPA
CrossTPA is a high-performance, cross-platform teleportation suite that seamlessly bridges the gap between Java and Bedrock players with interactive GUIs and robust economy integration.
DonutSMP Core
A comprehensive core plugin designed for Donut SMP, providing essential server management tools, custom mechanics, and backend optimizations. To those images that shared, its not only that but a lot more.
Viper Anti-Dupe
Viper Anti-Dupe is a high-performance, Server-Side ONLY configurable anti-duplication mod for Minecraft. Blocks 25+ known dupe methods with zero client mods required. Fully configurable per-method — choose what to block and what to allow. 🔒✨
Villera
Turn villages into living economy hubs with biome-adaptive banks and markets, secure currency, rentable chunk claims and performance-friendly stacked spawners
AntiDoubleClickTotem
AntiDoubleClickTotem is a client-side Fabric mod that prevents accidental double-clicking of keys in your inventory by adding a small, configurable delay between such presses.
CloudeEngine
The ultimate performance upgrade for mobile players. This engine optimizes hardware efficiency under the hood to deliver a fluid, stutter-free experience while maintaining a 100% vanilla look.
Antique Odyssey
A progression-focused adventure modpack where ancient magic, powerful relics and mechanical engineering shape your journey. Explore a world filled with dangerous bosses, forgotten ruins, powerful spells and intricate machinery.
Just Auth
Just Auth and a little performance
Tank Controls
Awful tank controls in Minecraft.
Builder Staff
You can place Walls and Platforms with one Click now!
LightPvP
Enhance your PvP battles with LightPVP's customizable features!
UnwaxAndDropHoneycomb
Unwax copper blocks to drop honeycomb instantly!
MCMgr
A Minecraft Multitool Plugin
CreatingNations
Build an empire. Forge its engines. Defend every inch. - Nations of the Mechanism A Create Multiplayer Modpack
Burning the Silverfish│燃燒蠹蟲
Destroying an infested block with a tool enchanted with Silk Touch will cause it to drop itself. Smelting it in a furnace can restore it to its uninfested state.│使用帶有精準採集附魔的工具破壞蟲蝕方塊會使其掉落自身。將其放入熔爐中熔煉可以使其恢復到沒有被蟲蝕的狀態。
AntiLootDrop
AntiLootDrop is a super lightweight 🪶 and efficient ⚡ Paper plugin designed to prevent item drops from: 💥 Block explosions (like TNT, creepers, beds, anchors, end crystals and more.) ⚔️ Player deaths (no more loot spilling everywhere!)
FPSWizard
A simple setup wizard that guides players through Minecraft settings that can improve FPS and performance.