Minecraft Java 1.21 Mods
Browse 126,938 free mods for Minecraft Java 1.21 — popular picks include Bossbar Day-counter, Project Catbus, JobsPlus.
Step by step: How to install Minecraft Java mods & modpacks
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Bossbar Day-counter
Adds a day counter and displays it in the boss bar.
Project Catbus
All aboard the Cat Bus! An eclectic, Aeronautics-themed modpack for Minecraft 1.21.1.
JobsPlus
Earn XP and money as you play, level up and prestige.
HereEngy
A paper plugin to create and place blueprints from existing buildings
zoomix
A lightweight smooth zoom mod for Minecraft
Velopin
Places a waypoint at your current position. If a waypoint already exists, it is automatically replaced with a new one at your current location.
Patronage
Ultimate self-improving armour
Mace Cooldown (Works With Strength)
Mace Cooldown that works with strength smp based plugins
Recolor Terracotta
Adds recipes to recolor previously-colored (non-glazed) terracotta!
CmdGuard
The ultimate command whitelist and tab-completion blocker for modern and legacy servers
VortexSellChests
Automated sell chests with item collection, filtering, upgrades, fuel support, and economy integration along with infinite storage chests
GearHud
Compact HUD showing the durability of your armor, main hand, and off hand as color-coded bars so a tool or armor piece never breaks by surprise.
Recipegraph
RecipeGraph is a recipe scanning and exporting mod for Minecraft. It can scan all recipe data from JEI in game through commands, then export the data as a JSON graph. The exported JSON can be searched and viewed with the bundled index.html.
Crqzy's Lobby
A lightweight Paper plugin that sends players back to your Velocity lobby server. Configure the server name and any number of commands (e.g. /lobby, /hub) directly in config.yml — no restarts required for new commands.
CauldronHUD
Look at a cauldron and a small HUD shows what it holds and how full it is (Water/Lava/Powder Snow, level 0-3).
Redstone Armor
This mod adds a new redstone armor to the game
moni
small mod that adds a money system with various coins and wallets
Purpir ElytraSwap
A lightweight mod that lets you quickly swap your equipped Elytra with a chestplate from your inventory using a keybind.
Levont Pack
My own official resource pack. It's Levont Themed and has some QoL stuff!

HorizonCraft
Simple in-development Minecraft plugin adding claim protection and player trading system via /claim /troc and /jobs commandes!
GravesEpic — Death Graves, Holograms & GUI
graves, death, hologram, inventory, recovery, survival, lightweight
AutoSavePlayer
A plugin that enable to save players' inventories.

Domi's More Useful Tools
A bunch of tools and weapons..
Clay Crafter
This is a data pack (My first one, yay) that makes it so that getting clay is easier with a bucket and dirt to get 8 clay balls, bringing more use to the dirt block
RTP Reset Lite
For pvp or any server that has rtp, unsaves all changes made to terrain once that player has left the area
Hardcore Tatoo
This mod gives you a Tatoo on your Arm that shows you, your Health and Hunger
Visual Identification
Lightweight and configurable server side block and entity information UI based on player's line of sight. Displays configurable information such as block name, block ID, mob health...
LiteGrid
A 3x3 mob-spawn safety HUD: live block-light readings of the tiles around you, color-coded by spawn risk. Toggle with L.
Conductor Tools
This mod adds: Well, Conductor Tools!
kʊɹs'd
loot chests spawn procedurally generated bekʊɹs'd items. Cursed in their own wɛɪj.
Temp Shelves Fix
This plugin that I made over a few hours or so stops people from putting items in shelves, since apparently they're being used to dupe items.
AI Engine
ChatGPT Powered Professional AI Plugin. Takes 4 years to Build.
PurseCommand
A basic purse plugin that lets player use their Vault balance as in-game gold ingots, mostly used in towny servers.
cauldron-concrete-reloaded
A simple plugin to harden entire stacks of concrete powder by shift-clicking a water cauldron. Lightweight and supports versions 1.16.5 - 1.21.11.
Duel Request
Request a Duel, to Someone, -Flusspy
Discord Vote Rewards
A powerful Minecraft plugin that connects your server with Discord voting rewards. Players can vote using your Discord bot and instantly receive in-game rewards, items, commands, keys, money, ranks, and more.