Minecraft Java 1.21 Mods
Browse 12,081 free mods for Minecraft Java 1.21 — popular picks include TFMG Converter Fix, robo_pvp, LagDetector.
Updated daily
TFMG Converter Fix
Unofficial patch for Create: The Factory Must Grow (TFMG) fixing the Converter's zero voltage/current bug on valid networks. Also sets output mode as default and allows cable connections from any side. Requires TFMG installed separately.
robo_pvp
This collection contains all types of weapons and graphically modified kill suits to achieve optimal gameplay performance and increase frame rate per second.
LagDetector
a simple plugin that adds /lagdetect command to let you see lag sources in your server
AdvancedChatFormatter
Ultra-lightweight, high-performance chat formatting plugin built for Paper servers running Minecraft 1.21 up to 26+, supporting Java 21 through Java 25.
FlowTimer
An optimized multiplayer speedrun plugin featuring a stopwatch with pause functionality, end-detection, and support for crashes and restarts.
TB-ScoreTime 1.21.x - 26.x
A high-performance, fully asynchronous leaderboard and automated reward system
Santa Totem Full Body
Santa Totem Full Body is a festive resource pack that fully redesigns the Totem of Undying into a Santa-themed model. Clean, detailed, and optimized for modern Minecraft versions.
ProCRAFT
The better Minecraft for everyone!
Tuxy's PvP Modpack
A lightweight PvP modpack designed for higher FPS, smoother gameplay, lower latency, and improved competitive visibility.
Onyx Anticheat — Advanced Anti-Cheat for Paper 1.20–1.21.x
Lightweight and high-performance cheat detection optimized exclusively for Paper servers.
dynamicwievdistance
Automatically adjusts View Distance and Simulation Distance based on TPS, MSPT, and server load for maximum performance.
BsCleaner
Advanced entity cleaner with timer, sounds, titles & gradient messages for Paper servers
Restart_ToCommandServer
This plugin adds commands to smoothly restart the server while the game is running
RedOut
Allows players to get server metrics like mspt as a redstone signal from an item frame.
ApCoin
ApCoin is a modern, high-performance virtual currency plugin for Minecraft Paper servers, offering fast coin management, player transfers, leaderboards, PlaceholderAPI integration, and flexible SQLite/MySQL support.
GuardChunk
Protect your server from lag and chunk overload by automatically limiting blocks and entities. GuardChunk keeps your performance stable, optimized, and secure.
ParkourEngine
ParkourEngine is a cinematic Minecraft parkour plugin built for smooth movement, immersive effects, and advanced gameplay mechanics. Designed with performance and style in mind, it adds dynamic parkour abilities, fluid movement systems, and customizable ac
InsecureNightVision
InsecureNightVision gives players a simple and lightweight way to manage night vision effects on a server. The plugin is easy to use, performance-friendly, and designed for smooth integration into any Minecraft server setup.
Fleshy Anvils & Inventories!
An animated fleshy reskin for the inventory, recipe book, and anvil! In order to use this resource pack, you must also have optifine or animatica!
RexTokenX
A high performance token plugin.
cbgsoptimizasion
so its hella hella powerful plugin needs to optimize your mc server about %20 to %30 percent depending on the player/redstone farms count
Flame Announcer
A powerful and highly customizable announcement plugin featuring scheduled Chat, BossBar, and Interactive clickable messages with full in-game management.
DiscordLogger
Log every command and gamemode change from your Minecraft server directly to Discord — in real time.
Laminar
Laminar flow for your packet pipeline — clean, ordered, turbulence-free validation at the protocol layer.
Stealthy-Currency
A performance-friendly physical currency and economy plugin for Minecraft servers.
Synix
Secure Discord ↔ Minecraft sync bridge for Spigot/Paper with embedded high-performance bot, bi-directional chat, and automation features.
UltraOptimizer
High-performance modular optimization suite to stabilize TPS and reduce MSPT.
Monarch Artifacts | High Performance RPG Core
The Next-Gen RPG Core. Dirty Cache Stats, Transactional Forge & 0% Lag Combat.
Corruptedly Optimized
A modpack desigined completely to maximize the performance of the game!
DeltaChunk
Save chunk as small as possible to reduce world size but try to use original mca region
Samotracia
A captivating 64-palette resource pack, enhances Minecraft's graphics while preserving its pixelated charm. Inspired by CRT games, it offers a calming, welcoming atmosphere. Optimized for fabulous graphics, it ensures a unique gaming experience
MJCoordinates
MJCoordinates is a clean, performance-friendly Minecraft datapack that displays your real-time X, Y, Z coordinates, the current world day count, and your cardinal facing direction directly on the action bar.
Maykesh's Server Observability Framework
A comprehensive server observability framework for Minecraft 1.21. Monitor tick timings, entity updates, chunk loading, network packets, and more with minimal overhead. Perfect for debugging, optimization, and rate-limiting systems.
Rptback
Rptback is a Folia-optimized /back plugin for Paper 1.21+ servers. It safely teleports players to their death point with very smart safety checks, fully configurable delay, and clickable chat buttons.
Lemmy Birch Set
Change the look of the Birch family of blocks and replaces them with a generic player skin. This pack rewrites the appearance of blocks and has support for optifine texture connection. This will largely be unupdated as it is a personal project of mine.
FluxySpawn
A lightweight spawn plugin designed for performance and simplicity. Easy to set up, optimized for modern servers, and packed with essential spawn features.