Minecraft Java 1.21 Mods
Browse 1,917 free mods for Minecraft Java 1.21 — popular picks include CrUnicoder, TPA+, Adaptive Entity Prioritization (AEP).
Updated daily
CrUnicoder
🛡️ Unicoder - Advanced Server Security & Chat Guard Unicoder is an all-in-one security shield designed against players who disrupt chat order, exploit vulnerabilities, and exhibit toxic behavior on Minecraft servers.
TPA+
A polished teleportation addon for Ly+ Settings featuring a dimension-aware request GUI, per-player reception controls, and a clean action bar countdown.
Adaptive Entity Prioritization (AEP)
AEP dynamically reduces lag by throttling mob AI and item merge checks based on server strain.
CreeperShield
Prevent creeper spawns near players with permission.
CreatingNations
Build an empire. Forge its engines. Defend every inch. - Nations of the Mechanism A Create Multiplayer Modpack
Brilliantly Optimized (Android/LowEnd Edition)
Optimization mods, no filler, only for low-end/arm devices.
Even Better Whitelist
A professional whitelist workflow with Discord actions, dual VPN/Proxy detection, GeoIP, optional captcha, Discord account linking, and statistics. Built for production servers.
CasleRush
CastleRush, inspired by the German Youtubers "Rewinside" and "Ungespielt". A Paper Plugin that you can install to play an optimized version of the Format. Build your Castles with how many friends you want and race against them at the end.
ArmadilloSleeper
Sends Armadillos at XP Farms into Sleep to make TPS better but still make XP Farms very good!
Immersive Visual Overhaul
Build mods aimed at visual change without affecting the mechanics of the game.
TwinPing
Twin Ping is a mod to sync your ping with other players, especially made for tierlist fights!
Junk Dropper
Best mod for cleaning for servers
Mining Spread
A lightweight plugin adding a custom "Mining Spread" enchantment to break connected blocks! Fully customizable with MiniMessage support.
ScheduledShutdown
Select the time you want your server to shutdown every day.
RevertRaidChanges-Extra-VaultsOminousBottleRemove
Removed the Ominous Bottle from the Vault LootTable.
Astra TierTagger
A mod that display player tier in Minecraft
Moofall Protection
Moofall Protection makes leather armor soften your landing—each leather piece reduces fall damage by 12.5%, and wearing a full set cuts all fall damage in half.
Secure-ArmorStands
生成特殊盔甲架，避免因卡顿、掉帧误拆盔甲架Spawn invincible armor stands to prevent the tragedy of execution chambers failing due to accidentally breaking the stand during lag or frame drops while AFK.
SimpleDataSync
SimpleDataSync is a professional cross-server player data synchronization plugin that seamlessly syncs inventories, money and more across multiple Minecraft servers using Databases! Report bugs under dsc.gg/simplepluginz or dsc.gg/simpleplugins!
NerdSoft Kitchen
A performance-first cooking overhaul: a hand-fed grill table, four new crops, and a refillable Iron Cup
PlayerDrops - DeathManager
A lightweight paper plugin that drops a configurable percentage of a player’s inventory on death. Supports slot‑accurate item restoration and avoids conflicts with other death‑related plugins.
AquaLib
AquaLib is the foundational core library engineered to power the Aqua Kingdoms ecosystem and its suite of advanced oceanic features. It provides a high-performance framework for handling complex data and immersive underwater mechanics while ensuring best
-TOD- Time of design
"TOD is everything in One Modpack." This isn’t just a modpack—it’s the complete experience. Every gameplay style, every mechanic, every vibe—all packed into one seamless world.
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.
SkyDash
A lightweight movement plugin that adds a smooth and powerful double jump to your Paper 1.21.1 server. Perfect for lobbies, minigames, and SMPs, fully configurable and optimized for modern Paper versions.
Happy Trains
Happy Ghasts in minecarts look forwards!
Coalossal Coals
Progressively better and better tiers of coals with balanced costs for the severely late-game final items.
Smithing Overhaul
Overhauls smithing table to replace the crafting table.
Log as Planks
Craft all items that require only Planks, using Log
Ender Chest on Death
Ender Chest on Death is a lightweight Minecraft datapack that gives players exactly one Ender Chest when they die, without enabling keepInventory, so you can have a chance to get some items back!
ControlPickup
You don't want to pickup a dirt block or other blocks? This mod helps you out!
UniversalMobFoundry
New generation of generators! You can buy monsters, simulate their loot, and upgrade the generator.
Live Musical Instruments
A plugin that lets you play electronic instruments live and broadcast the performance to players in real time.
Tweak Your Life
Death chests, anvil uses, sleep indicator, simple crop-harvest, remote enderchests & more. Add usefull tweaks to your SMP and take it on another level.
ADQ TWEAKS
Tweaks to the Aeronautics Delivery Quest mod (or TNM), that remove the lag it causes, adds new configs, and a PvP mode.