Minecraft Java 1.21 Mods
Browse 95 free mods for Minecraft Java 1.21 — popular picks include XaerosMapPlugin, BoltTowny, Crystal Town Mod.
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XaerosMapPlugin
Xaero's Map plugin is a lightweight plugin for servers using Xaero's Minimap and Xaero's World Map. The plugin prevents different worlds from sharing or overlapping map data, ensuring that every world maintains its own unique map.
BoltTowny
Bolt add-on providing integration support with Towny
Crystal Town Mod
A mod that adds a slightly elaborate universe! A couple of dimensions, lots of interesting mobs, progression, magic wands and toxic weapons!
Prism Perms
Cross‑platform permissions plugin for Bukkit, BungeeCord, and Velocity. Lightweight YAML storage, simple commands, and rich stats tools (groups/users, ungrouped/missing/list, names cache) with pagination and safe output chunking.
Idiot's Saccharine Totems
Adds a few craftable totems, including the Totem of Keeping, and a lickable totem core which can be imbued with potions, and a block that preserves velocity.
Torus
Electricity and machines without mods.
kAuth
Auth System for Velocity servers
MHDF-Tools
MHDF-Tools | Dream Tools | ✨ A lightweight portable high performance Bukkit base plugin ✨MHDF-Tools | 梦之工具 | ✨一款轻量化便携高性能的Bukkit基础插件✨
Simple Reconnect
Reconnect your players to the last server they were on
TeleHop
Cross-server teleportation suite for Paper + Velocity networks. Includes homes, warps, TPA, RTP, /back, and /spawn - all synced across servers via MySQL. Features a modular config, multi-language support, and configurable teleport effects.
Axior
A plugin that upgrades operator tools, provides whole systems and helps with some console startup info!
WingAuth
A more advanced and updated fork of LimboAuth - Velocity auth plugin for offline/hybrid servers with secure Limbo-based login, sessions, and anti-bruteforce protection.
SendHub
This can help you to send to the lobby
Corex
Modern, Paper-exclusive compiled scripting engine
Uptowns Extra Inventory
This plugin adds extra inventory with 54 slots under command /inv. Has a config
CityClaim
The new claim minecraft plugin free ! Create your town/city, claim, custom gui, bank and more !
MyHomesX
MyHomesX is an advanced and highly configurable homes plugin for Spigot / Paper servers, designed to provide a smooth, secure, and professional experience for players, staff, and Minecraft networks.
AutoStopper
Empty servers sleep. Players wake them. AutoStopper starts mapped Docker backends on demand and stops them after inactivity.
SentryLogger
SentryLogger is a plugin that integrates Sentry error tracking with your Paper or Velocity server.
VeloAuth API
VeloAuth API - The main component for the plugin VeloAuth System for velocity.
NexusProxy
All-in-one modular core for Velocity networks
SimpleLock
A simple and lightweight chest protection plugin that allows players to secure chests using signs with optional whitelist access, Towny integration, and configurable protection settings.
Blitz Mod
Blitz is an alpha-stage industrial progression mod built around packet-sized electricity.
ResidenceBridge
Cross-Server Residence Bridge Plugin, Seamlessly share Residence data across Velocity / BungeeCord multi-server networks
Modern Industrialization - CC: Tweaked - Compat
This mod implements the CC: Tweaked peripheral functions "GetEnergy" and "GetEnergyCapacity" for Modern Industrialization's LV-SV Storage Units.
Vexal Infinite Buckets
An advanced Minecraft plugin that enhances the vanilla bucket experience by introducing infinite and multi-capacity fluid storage. Players can toggle between infinite mode or store multiple buckets of the same fluid type.
VelocityAutoBackup
VelocityAutoBackup is a Velocity proxy plugin that automates complete server backups to Google Drive.
BuildContest
BuildContest plugin automatically creates Minecraft sub-servers using Docker and transfers players to their respective contest servers.
VeloAuth System
VeloAuth System - The main plugin for server authorization. Paper 1.21+ and Velocity 3.3.0+
UniRedeem
Universal redeem code plugin for Spigot, Bungee, and Velocity. Features a built-in REST API, advanced limits, and dual SQLite/MySQL storage.
ReportToxicity
A moderation and reporting plugin for Minecraft servers that sends reports to the ReportToxicity platform and can also alert server owners or admins through Discord when configured.
LastServerAndLobby
Velocity plugin that adds /lobby and /last commands with configurable aliases, persistent storage, and movement logging (file/console).
Scoreboard Sync
A plugin that syncs objectives, scores, and teams to a MySQL/MariaDB database so all backend servers in a Velocity or BungeeCord network can share the same scoreboard state. Useful for data packs and cross-server minigames that use vanilla scoreboards.
Queue Plugin
An Queue Plugin for Velocity, easy to set up!
PurseCommand
A basic purse plugin that lets player use their Vault balance as in-game gold ingots, mostly used in towny servers.
Racial_Town
Territory × Race Evolution, creating immersive RPG survival experience.