Minecraft Java 1.21 Mods
Browse 128,739 free mods for Minecraft Java 1.21 — popular picks include rtpguis, SlashServer Reloaded, Ores Reduced.
Step by step: How to install Minecraft Java mods & modpacks
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rtpguis
A Plugin where you can teleport to specific world with just simple configurable GUI which supports placeholders.
SlashServer Reloaded
A high-performance Velocity proxy plugin that allows players to seamlessly navigate your network using custom commands.
Ores Reduced
And a mod that allows you to reduce ore veins and vein sizes
Sky Book
SkyBook is a Fabric client-side Minecraft mod for 1.21.11 (Java 21) that brings the Hypixel SkyBlock WIKI into the game without ever leaving a container screen.
Riptide's Blue Netherite
This turns netherite tools to a blue color
Seamless Survival Overhaul
A modpack designed to enhance and deepen the survival experience, adding new challenges, mechanics, and immersive features.
Strawberry Pie
This resource pack changes the pumpkin pie to strawberry pie.
SpawnerHUD
Aim at a monster spawner and a small HUD instantly tells you which mob it spawns — read straight from the spinning mob inside the cage, so you know at a glance whether a dungeon spawner is worth keeping or breaking.
Market Utils for Hypixel Skyblock
A Fabric client-side mod for Hypixel Skyblock that highlights profitable Auction House listings using colored slot borders and detailed profit-calculation tooltips.
More Than Optimized
Squeeze out every singe frame possible
MooseMobs
Overhaul the Mobs in your Minecraft world with Moosified Whimsey!
Hovering/箭不如飞
Added a enhantment of bow allowing you to hover while using a bow.

StarsAndPixels' Custom Items
This is a resource pack that adds custom item renames that focus on media that i like! (Works in vanilla!)
Nate's Remarkably Optimized
The Remarkably Optimized modpack with extras added into it
CoreToolsX
CoreToolsX is a Paper plugin for vanilla-friendly tool progression, configurable upgrade paths, and netherite tool visual skins with optional inventory model support.
As Pro 97 tucture pack
AS Pro 97 tucture pack for all pvp players Yt AS Pro 97
The Race
The Race - a plugin that adds fantasy races to the server!
offhandtotemindicator
This mod pulses an outline if you do not have a totem in your offhand.
Realistic iron
This pack adds new textures to ore iron blocks inspired by real life.
Heart of Life Additions
An addon for Heart of Life adding heart-themed tools, weapons, and armor crafted via a custom smithing template. Upgrade your diamond gear with the Heart Upgrade Template and Heart of Life to forge powerful heart-infused equipment.
TitanLogin-plugin
This is a modern login/register plugin with advanced features
Deep Fire Update
A mod that makes the Nether even better!
lava to cheese
makes the lava texture look like cheese

Ugo Coin
Ugo's currency specialized for maximum control to server owners.

Item Blast Resistance
Makes every item as the name suggests, blast resistant (immune to explosions).
Charm Enchantment Fix
Fixes Charm's enchantments not being obtainable via Villager trading and the Enchanting Table.
Wordleblocking :D
Adds 81 (27x3) English letter blocks
DeathPin
Never lose your death location again. DeathPin sends a clickable death message after respawn and lets players activate a particle trail leading back to their last death point.
Crimsonite
Adds Crimsonite Ore to the world — a rare mineral found in deepslate layers. Mine it to collect Crimsonite Shards, which can be smelted into gold ingots.
Get Those FPS
Minecraft shouldn't feel like a slideshow. GET THOSE FPS is a lightweight optimization pack designed to get rid of the lag, boost frame rates, and provide the smoothest gameplay possible even on potato PCs.
Custom Border Plus
Full customize world border with effects and warning
Create Cozy Vanilla+
A Minecraft pack that has farming, adventure, and some technical parts added. This pack has something for everyone to enjoy in a cozzy server
Slightly Shorter Spears
Makes Spears Slightly Shorter
SmartStash
A seamless inventory management plugin that adds smart categorical sorting and one-click item transfers to chests without extra menus or client mods.
Mining helper
Adds new pickaxes and other things that can help you to mine.
Monumental Vanilla+
Stop playing in a box and start exploring a world without limits.