Minecraft Java 1.21 Mods
Browse 129,040 free mods for Minecraft Java 1.21 — popular picks include Backup's Slingshot, Colorful Player, StrengthUnified.
Step by step: How to install Minecraft Java mods & modpacks
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Backup's Slingshot
Adds A Simple Slingshot To Minecraft
Colorful Player
An RP that changes the entire player's color, and based on a single pixel you choose the color and whether the skin will be emissive

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.
Dungeon Loot Manager
GUI-based dungeon loot editor for Spigot / Paper / Purpur 1.21.10-1.21.11
Survival update
Hello, this mod is designed to improve the survival aspect of Minecraft. It's an unfinished version that will undergo changes over the coming months, but in its current version, it includes new double and small flowers that beautify the plains and forests.
NoMoreCartPVP
This Project disables TNTMinecraft Damage to Players, and block CartPVP
Quickshop Search Item
Easily search Quickshop shops with a GUI!
MS4_Magnet
This plugin adds commands to make a magnet like on MineShield 4
EIZZOs-Tokens
A simple economy plugin that allows players to withdraw and deposit money as physical tokens.
Gearsmithing
Allows you to use the smithing table for upgrading and repairing your gear.
Kapp1xel's OP Weapons
5 new OP weapons: Catzuka, Mallet, Nokia 3310, Autoburner 3000 and an Anti-Gravity Slingshot
Markdown Manual: Reimagined
A 1.21.1 version of Markdown Manual to provide markdown formatted in-game documentation.

Xiaoklunar Shulker
Inventory shulker opening + overflow pickup vacuum that stores into carried shulkers.
ChunkHopper 1.21.11
Chunk Hopper Simple And Fast
Convenient Minecraft
Adds Minecraft features that make the game convenient.
SYSTEM SMP
System SMP is a premium Minecraft plugin designed for survival multiplayer servers. It adds unique features including small caps text formatting, tree felling mechanics, custom item displays, and an economy-based spawner mining system.
Harrowing Hells (Data Pack)
[NOW SURVIVAL SUMMONABLE] Adds the Cinderscourge, a highly developed boss entity with a diverse arsenal of attacks at its disposal. Usable in mob battles.
Hadean Depths
Adds 50+ new fish and completely reworks fishing progression!
ModDetails
A lightweight utility mod to view loaded mods. Use /clientmods for local mods and /mods (requires luckperms permission) for server-side mods with hoverable details.

AdvancementPlus
Reward players for advancements & challenges, along with rewarding players that complete all advancements.
No More Terrible Fps
A ModPack That Allows User To Get More Fps On Low End Pc. This Pack Includes both Fps boost And Utility Mods.
Silk TouchEX
Silk TouchEX allows Silk Touch tools to mine normally unbreakable or unobtainable blocks, expanding survival possibilities while staying balanced and vanilla-friendly.
Easy To See Ores
Makes all ores 2 coloured and make them easier to see.
MI Programmer Art
make some elements of Modern Industrialization have a similar appearance to Programmer Art
Ender-Warped-Blocks
This texturepacks makes all Warped forest related blocks dark purple to match the endermen.
EpicCraft
Welcome to EpicCraft! This revolutionary plugin transforms the crafting experience on your server.
Book Type Enchanting
Type Books filter the Enchanting Table to only show applicable enchantments (Sword, Pickaxe, Armor, etc.)
Invisible Trapped Chest
This pack allows you to hide trapped chests and make them indistinguishable from normal chests.

so damn optimized
Just an optimization modpack I made for my potato PC and for yours too.
Skelocity
A regularly updated Skript addon bundled with functionality around Minecraft proxies for server networks using Skript
B's TacticalPing
This project adds FPS-game-like pings.

The Mining of Isaac
Brings The Binding of Isaac to MINECRAFT!
AfkChat
This inform players in chat who's is afk

qwq-official
qwq is a community driven mod that's, well, made by the community!
Block Information
Displays block information on right click with the Block Information Stick. Great for debugging and devs.
Survival Asterisk
Configurable tweaks to make survival more difficult including random respawns and reduced natural regeneration.