Minecraft Java 1.21 Mods
Browse 22,165 free mods for Minecraft Java 1.21 — popular picks include Slow growth, SunIslandArrowAddon, Killers Beware.
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Slow growth
Makes crops grow 10x slower (it takes 10-15 (in game) days to grow a wheat)
SunIslandArrowAddon
Custom Arrow and Quiver plugin!
Killers Beware
A mod based on the game Dead by Daylight, designed to add the many weapons, objects, and perks the game offers.
Mute Toogle
Mute or unmute all game sounds instantly with one key press. Easy on/off toggle with message!
Time Hunter
Time Hunter is a team PvP survival datapack where players compete by mining resources and eliminating foes to extend their countdown, with elimination on timeout, supporting 2-4 team battles and strategic combat.
InviteList
Maintain security and an active community by allowing pre-existing server members to invite other players to the whitelist.
Heart Hunter
A datapack that is combination of lifesteal and manhunt. Track down your target and gain max health.
Zero Delay Crystals
Removes the delay of breaking and placing crystals
Hikari-Tweaks
Client side utilities mod for Hikari Server

Planet - Border teleport
Border-teleport mod: teleports entities crossing world borders (±326) to opposite side. Perfect for 1:326 Earth maps. Open-source (remix allowed, but must keep code open).
Blue Axolotl Advancement
Advancements for the Blue Axolotl
VSCurse
Adds new curse shears to remove armor even with curse of binding.
Vanilla RTP Queue
Simple and lightweight highly customizable RTP Queue plugin.

Project: Nuclei
Adds uranium ore, lead ore and an enrichment process for making uranium rods. Also adds graphite rods (crafted with coal), a nuke, a radioactive seperator and various crafting components. In general this is a (kinda) scientific industrial progression mod.
Spud Mod
Adds spuds and gripper tools and items to the game from the AETHER
CrystalSizes
lets you change the size off crystals and add a cham like overlay
WhoIsThis
Allows you to see players in stealth/spectator mode
NovaItems
A modern Minecraft plugin for creating custom items, blocks, furniture, and your own content without a complicated setup.
The Fletching Table Addon - More Fletching recipes
This is an addon datapack for "The Fletching Table" adding a recipe for more arrows and a few situational items.
LastItems
A plugin for unique items with extensive customization and flexibility for versions 1.16.5 - 26.1.2
iClearLag
The best Minecraft cleaner, fully customizable
Chat Opacity
This is a simple mod that allows the user to toggle chat visibility with a keybind, and nothing more.
CommandWorld
A plugin to seperate world chats with groups or per world, with staff chat and also command visibility and accessibility for players, with worldgroups and luckperms. Makes your server feel like a proxy
Pennyworth
Add pennyworth plant of Thanh Hoa in Minecraft
Colorful Bottles
Decorate your storage with Colorful Bottles!
Pockets Glore!
This mod adds more storage to the player by clicking G for the first pocket, and H for the second! Idea from reddit and the craftmine april fools update.
ASTRALMACES
THIS PLUGINS ADD OP MACES TO GAME

StrengthUnified
StrengthUnified is a comprehensive strength-based SMP plugin that adds a progressive strength system to your Minecraft server. Players can increase their strength through crafting special items and PvP combat.
Phantom Warning
Warns you exactly 3 minutes before Phantoms spawn due to lack of sleep. Includes a hotkey to check your status and a personal record tracker!
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.
Potion Manager
Let your members use potions on command!
Vanilla Magic
This is a vanilla style magic mod that adds magic resist to gold, copper, and netherite armor, as well as 3 wands of varying strength that do magic damage.
Bunny Squad
Tame wild rabbits with sweet berries to create loyal combat companions! Your tamed bunnies will follow you, sit on command, and fiercely defend you from monsters with rainbow particle attacks. Turn cute rabbits into your personal army.
Hard Nether Portal
A simple mod that let nether portals resistance explosion damage from such as ghasts, TNT and creepers.
Banana dimension
A minecraft dimension mod themed after bananas
BBAds
Want to capture your player's attention? Use bBAds to display custom messages via the BossBar. Features include configurable server ads, player-submitted content, a regex filter, and robust admin controls. Tailor messages to match your server's style.