Minecraft Java 1.21 Mods
Browse 12,081 free mods for Minecraft Java 1.21 — popular picks include Optifine Spyglass Scope, CrystalEssientials, AzLagControl.
Updated daily
Optifine Spyglass Scope
Removes the spyglass overlay for a clear, unobstructed view.
CrystalEssientials
makes anchors easier to see the glowstone leve and removes ring from end crystals making it reduce lag
AzLagControl
Azlagcontrol Minecraft server optimization plugin
VCAnalyser
An intelligent system that analyzes the causes of MSPT and TPS drawdowns, as well as RAM and CPU consumption.
Mace enchantments coexist
Allows Breach and Density enchantments to coexist on a mace.
[Resource Bounty] Rbounty - Put a Price on Your Enemies!
Bounty with items, not just money! A high-performance physical bounty system.
"E"
E (A data pack that re-works the crafting recipes for slabs, trapdoors, planks, pressure plates, doors, and buttons. More is on the way!
Just Optimized. [JO.]
Just Optimizes Minecraft - It's faster than FO by ~50%!
Velocium
Velocium is a lightweight optimization modpack for Minecraft 1.21.11
X-Performance
X Performance is an optimization-focused Minecraft modpack designed to maximize FPS, reduce lag, and improve overall performance while preserving the vanilla gameplay experience
CitrusSMP
A curated SMP experience built around exploration, rivalry, and seasonal storytelling. Fresh world, high stakes, no rules required.
Avenoxrtp
Modern RTP plugin for Paper/Spigot featuring safe random teleportation, optimized chunk loading, and smooth performance.
xOptimize
Advanced Professional Server Optimization Plugin
NovaRelics
NovaRelics is the most powerful and flexible custom item framework for Paper Minecraft servers.
zSigns
Create signs that execute commands on right-click.
ArkLagg
ArkLagg is an optimization plugin designed to improve Minecraft server performance by reducing unnecessary entities and automating server cleanup. Lightweight, efficient, and fully configurable, it helps maintain a smooth gameplay experience.
Miscrafted
Crafting recipes for items that should already have a recipe.
GraveCore Lite | Optimized Death Chests & Holograms
A lightweight, lag-free death chest plugin with clean holograms and auto-cleanup.
PluginPfleger
PluginPfleger is a lightweight plugin update checker for Paper servers.
KNLibs
KNLibs is a lightweight, high-performance core library required for all KN Projects plugins.
VMLogin
This is a simple Minecraft auth plugin.
NDS-API
Async-first, Redis Sync, High Performance Economy Engine for Developers.
ChatCMDInput
Map the player's chat box input to commands
StammCraft
The official StammCraft Modpack
Simple Better Wooden Stairs Crafting
This project makes the crafting recipe of wooden stairs better and more fair, in the most optimized way possible.
Skull Boost
Collection of FPS boosting mods and essential mods for pvp. Brings every single mod you will need for PVP. Runs on Vulkan Mod
Rounded Tech
A light tech modpack with a focus on balance, progression, and overall rounded player experience.
Valery Perfected (BETA)
The beta Valery Clan Modpack, designed to deliver smooth performance, enhanced visuals, and an optimized Minecraft experience.
Tick freeze by start
standart tick is 0 and ingame tick stop & start

Panex's Technical Modpack
This modpack is your one-stop-shop for everything techincal related!
LinkChecker
LinkChecker - Prevents accidentally sending links in chat. LinkChecker is a small client-side mod that automatically checks your chat messages for links.
NoLogMessage
Prevents chat and game messages from being saved to the client log files
Banksystem [1.21.1+ , 26.2] | Dynamic Interest (Online/Offline) | Levels & Vouchers
Revolutionize your economy with voucher-based upgrades, dynamic interest rates, and high-performance
InfinityCore
Library used in InfinityGroup Plugins for compatibility and optimization development.
BoardManager
Simple Performance ScoreBoard Plugin
f.FastLoot
Automatically puts broken blocks directly into your inventory with full customization.