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Minecraft Java 1.21 Mods

Browse 1,227 free mods for Minecraft Java 1.21 — popular picks include Aegis system, DiscordWhitelisting, RavenMobs.

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Aegis system
1.21.9

Aegis system

a simple and very customazable rpg plugin that includes mana, abilities, classes and more!

56downloads
DiscordWhitelisting
1.21.11

DiscordWhitelisting

This plugin syncs your Minecraft server whitelist with a Discord bot, allowing users to request access via slash command. Moderators must approve all whitelist requests before they take effect.

56downloads
RavenMobs
1.19

RavenMobs

Zone-based mob leveling system with economy integration and dynamic stats

55downloads
AntiSoftlock
1.21

AntiSoftlock

Prevents common Minecraft softlocks by detecting traps, redirecting unsafe respawns, and adding an /unstuck command for players.

55downloads
TechNomads Multiplayer Server Pack
1.21.1neoforge

TechNomads Multiplayer Server Pack

Official TechNomads client pack: Create Aeronautics, connected quests, nomadic engineering, exploration, and multiplayer optimization.

54downloads
Adventure Path
1.21.1neoforge

Adventure Path

A fantasy & adventure themed Modpack with systems inspired by TTRPGS

53downloads
REST HTTP API
1.21

REST HTTP API

A Minecraft Paper plugin that allows executing server commands and get various information via HTTP requests. Perfect for integrating external tools, web dashboards, or automation scripts with your Minecraft server.

51downloads
OPCobblemon
1.21.1fabric

OPCobblemon

Welcome to OPCobblemon, a fully enhanced Cobblemon experience designed for players who want more content, more progression, and more power.

50downloads
bbnomodpack
1.21.8fabric

bbnomodpack

The official modpack for the (almost but not)-official bbno$ server.

48downloads
Dynamically Whitelist
1.21fabric

Dynamically Whitelist

Mod to check player access to the server by request to API. API can be found or made. API has to have a working with Database, in which players uuid are kept

47downloads
Create : AeroGen
1.21.1neoforge

Create : AeroGen

Discover the limits of the sky!

42downloads
RPG PLUGIN
1.20

RPG PLUGIN

Create a highly detailed RPG-7 weapon mod. The weapon is based on a crossbow and fires explosive rockets instead of arrows. Rockets create a large explosion on impact, destroying nearby blocks

42downloads
Supreme Crafting
1.21.1neoforge

Supreme Crafting

Questionable mod with questionable features. Surely won't be used for some questionable endgame of some questionable kitchen sink modpacks

41downloads
zCaps
1.20

zCaps

Allows players to type commands in any capitalisation. (e.g. /Gamemode, /SuMmOn)

39downloads
UraniumContaminationEra-II
1.21.1neoforge

UraniumContaminationEra-II

Tech & RPG fusion mod: climb the tech tree from metals to reactors, grow your stats through action, and let exploration drive your power.

38downloads
Electronium Refined
1.21.1neoforge

Electronium Refined

The cure to the 2-week Minecraft phase. A deeply optimized, long-term Vanilla+ adventure with seasons, exploration, and a touch of Create.

37downloads
QinhCoreLib
1.21

QinhCoreLib

Shared core library for the Qinh plugin suite. Unifies item sources (CraftEngine, ItemsAdder, Nexo, MMOItems, MythicMobs & more), attributes, custom-block & model bridges, and scripting. Required by QinhItems, QinhSkills, and other Qinh plugins.

37downloads
NPCSpeak
1.20

NPCSpeak

AI-powered Minecraft NPCs that actually negotiate, persuade, interrogate, and quest, not just chat.

35downloads
Knowledgebound
1.21fabric

Knowledgebound

KnowledgeBound is a server-side RPG skill progression and balancing mod for Minecraft (Fabric 1.21.1). It replaces standard vanilla progression with a time-and-action-based knowledge system.

35downloads
Ballz's RPG datapack
1.21.5

Ballz's RPG datapack

This datapack adds a firework fueled RPG.

33downloads
Are you Human?
1.21.8fabric

Are you Human?

Whenever you do stuff you get asked a question (e.g. Are you human)

27downloads
Serene Skies
1.21.1neoforge

Serene Skies

This is a modpack used for our whitelisted public server

22downloads
RPG non explosive plugin
1.20

RPG non explosive plugin

Added RPG-7 what use fireworks

19downloads
20TPS
1.20.5

20TPS

20TPS is an all-in-one performance toolkit that stabilizes your server by limiting lag machines, stacking mobs, and fixing common exploits.

16downloads
Mob Power DP
1.21.7

Mob Power DP

This data pack allows you to level up every time you defeat a mob, granting you various enhancements upon leveling up.

16downloads
DuckTeleport
1.21

DuckTeleport

A lightweight teleportation plugin that enables players to send and manage teleport requests (TPA) seamlessly across the server.

13downloads
TownGenesis | Next-Generation Civilization & Nation Simulation
1.20spigot

TownGenesis | Next-Generation Civilization & Nation Simulation

Forge Your Town • Master RPG Skill Trees • Automate Production • Conquer Empires

10downloads
AppleTomaTo's Custom Enchants
1.21

AppleTomaTo's Custom Enchants

Adds 61 unique custom enchantments inspired by Minecraft Dungeons & RPGs! Includes Vein Miner, Tree Chopper, Auto Smelter, Void Strike, and more.

9downloads
TownGenesis | Next-Generation Civilization & Nation Simulation
1.20spigot

TownGenesis | Next-Generation Civilization & Nation Simulation

Town • Master RPG Skill Trees • Automate Production • Conquer Empires

4downloads
️ TownGenesis | Next-Generation Civilization & Nation Simulation
1.20spigot

️ TownGenesis | Next-Generation Civilization & Nation Simulation

Forge Your Town • Master RPG Skill Trees • Automate Production • Conquer Empires

4downloads
An Origins Datapack Remnant Army Data Pack (1.21.11, 1.21.1)
1.21.11

An Origins Datapack Remnant Army Data Pack (1.21.11, 1.21.1)

An Origins Datapack Remnant Army Data Pack adds military vehicle classes for the Origins mod and uses Pehkui for sizing. It introduces a new way to play where you become a living machine like an aircraft or a tank. Instead of eating regular food, you consume burnable fuel like wood or coal to survive. This […]

Astralux Client Mod (1.21.1) – Advanced Anarchy Utility
1.21.1fabric

Astralux Client Mod (1.21.1) – Advanced Anarchy Utility

Astralux Client Mod is a utility-focused Minecraft client designed for Minecraft. It adds advanced tools that help players with combat, automation, visual awareness, and quality-of-life improvements. Features: Combat Assistance Automates complex combat actions such as crystal usage, totem swapping, and potion handling. Improves PvP efficiency with safer targeting and timing support. Includes tools commonly used […]

Skyopolis Evolved Modpack (1.21.1) – Create-Based Sky Automation
1.21.1

Skyopolis Evolved Modpack (1.21.1) – Create-Based Sky Automation

Skyopolis Evolved Modpack is a progression-based skyblock modpack for Minecraft. It is designed to guide new players step-by-step through quests while gradually introducing machines, automation, and advanced crafting. Features: Core Concept Start in a custom sky world made of floating islands Follow a structured quest system to unlock new technology Progress by building more advanced […]

TNP Limitless 8 Modpack (1.21.1) – Endless Modded Journey Begins
1.21.1

TNP Limitless 8 Modpack (1.21.1) – Endless Modded Journey Begins

TNP Limitless 8 Modpack is a large Minecraft modpack that combines technology, magic, exploration, quests, and automation into one complete experience. It is designed for players who want long-term progression and many different playstyles. Features: Core Overview Over 750+ mods About 2200+ quests across many chapters Focus on tech, magic, building, exploration, and boss fights […]

Holycube Revolution Modpack (1.21.1) – Steampunk Automation Adventure
1.21.1

Holycube Revolution Modpack (1.21.1) – Steampunk Automation Adventure

Holycube Revolution Modpack is a vanilla-friendly Minecraft modpack centered around the Create mod, designed to expand automation and building while keeping the classic Minecraft experience. The main focus of the pack is automation through mechanical systems from Create 6.0, combined with creative building supported by many decorative and cosmetic mods. There is no quest book […]

Farmopolis Modpack (1.21.1, 1.21) – Harvest, Automate & Feast
1.21.1

Farmopolis Modpack (1.21.1, 1.21) – Harvest, Automate & Feast

Farmopolis Modpack is centered around food production and automation. Explore an open world to collect ingredients-from Overworld crops to Nether and Twilight Forest specialties-and build a factory. Features: Harvest ingredients from diverse biomes and dimensions Build machines and conveyor systems to automate food production Utilize MineColoniesm Farmer’s Delight, and questing for structured gameplay Encourages gradual […]