Minecraft Java 1.21 Mods
Browse 12,087 free mods for Minecraft Java 1.21 — popular picks include AntiRedstoneLag, Advanced Restart, Mob Stacker Advanced.
Updated daily
AntiRedstoneLag
prevents lag machine in server
Advanced Restart
A highly-configurable plugin for automatically stopping and restarting servers.
Mob Stacker Advanced
Mob stacker mod with breeding support, etc.
GlassSync
A mod for Hypixel Skyblock that fixes the clientside desync of glass pane block states on 1.21. This allows for easier aiming at glass panes for gemstone mining.
LeQube Cobblemon
The official LeQG™ community modpack, built for Fabric!
Legacy's end
TU75 Modpack fork of re-console
FPS Unlock - Optimization
✨ Performance | Increased FPS | Minimal Lag | Stability Vanilla 1.21.4
Dong Dong's random creation
magic and energy,new ore,new dimension,new tool and weapon type.
Nearby Inventory Crafting
Craft using items from nearby chest's without moving them
AlwaysAuth
Keep your server always online even if Mojang is offline!
OptiFree
A modpack replacing the need for OptiFine
Better Performance & Fps (BPF)
A stable, high-performance experience with high FPS.
PvP Optimized Pack
A Pvp Modpack for all pvp modes especially tiertest kits (Trainingsmap is also in it)
PlayerDataSync
Seamless Cross-Server Player Data Synchronization
Vanilla Reimagined by Jashan_Maan
Vanilla Reimagined is a Minecraft modpack that keeps the original feel of the game while adding small, meaningful improvements. It focuses on enhancing visuals, gameplay mechanics, and quality of life without changing the core experience too much.
PlayerVaultZ
Advanced player vault plugin with pagination system
Sable Chunk Guard
a small NeoForge patch mod for Sable.
SitOnEverything
Sit on almost any block or entity with configurable seat positions, vanilla presets, and quick hotkey support.
Chill
Experience the official Chill SMP: vast landscapes, and immersive progression for all, plus a relaxing cooperative experience focused on exploration and building.
Radiance+
An extremely radical and broken attempt to optimize Minecraft for gpus with the radiance mod similer to my threaded pack ment to optimize Minecraft for the CPU with high hopes for this to no longer be broken in the future
Vanilla - Optimized
The Best Ressource Pack for Vanilla.
Wezxek PVP pack
A highly optimized PvP pack made by Wezxe, engineered for competitive Minecraft combat on Fabric 1.21+. This pack combines performance-focused resource packs with carefully selected client-side optimization.
ReCreated - Create Aeronautics Update
ReCreated is a NeoForge based Create Modpack. It focuses on stability, Create Aeronautics and fun while keeping performance. This Modpack is for used for the project of the same name from the Minecraft Network SurvivalProductions.
New Worlds Polished!
A fun and optimized modpack | RPG in exploration | +250 Mods | +300 Quests!
Aleskonium
Aleskonium is a Fabric performance mod focused on smoother multiplayer client-side gameplay. It improves frame-time stability and responsiveness with adaptive optimization and compatibility-aware tuning for modern modpacks.
oSzoukaua's: Slimy Honey!
Add a recipe to make a sticky piston with a piston, and a bottle of honey!
The Stoned Golem
This is the official Modpack for The Stoned Golem SMP
Master Optimizer
A professional-level Minecraft server optimization plugin that manages RAM, entities, chunks, and plugins. It is Designed for 1.18.x to 1.21.x. Ideal for low-memory and budget-hosted servers.
AFK Utilitys
Advanced AFK management mod for Minecraft Fabric with anti-kick protection, auto-reconnect, safety disconnect, and hunger management
Perfected Vanilla
This mod pack contains every mods you need to have your game fully optimized and have tons of new features for it to be perfect without any changes to the actual content!
mercuryium
该模组使得MC渲染可以使用更多的线程，提高游戏最低帧，减少卡顿 This mod allows MC rendering to use more threads, improving low FPS in the game and reducing lag 本mod由AI编写，mod by AI
Ultra Optimized
A competitor to Simply and Fabulously Optimized, but instead of 10-20 mods, there's 120 of them, all meant to make Minecraft run at light speed.
Client Side +
A mostly client side modpack. Enhance your vanilla Minecraft 1.21 experience with performance boosts, visual upgrades, and quality of life improvements, all designed for casual players and builders on vanilla servers.
Cobblemon - Pokekingdoms
The official PokéKingdoms Cobblemon modpack — packed with major performance optimizations, a built-in minimap, enhanced quality-of-life features, and seamless server integration for the smoothest Pokémon experience possible.
CobbleMaster
The official Cobblemon: Mega Showdown modpack — competitive battles, tech automation, and endless exploration, all in one.
RCraft
a realistic minecraft modpack by alirezafayeghi120