Minecraft Java 1.21 Mods
Browse 741 free mods for Minecraft Java 1.21 — popular picks include Oh What A World (Season 3!), Promethium, 2Gather [Aeronautics].
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Oh What A World (Season 3!)
Vanilla+ with a heavy focus on performance
Promethium
Extreme performance meets breathtaking terrain. Promethium blends Terralith & Tectonic with Voxy LODs for infinite view distances. Powered by Sodium & C2ME for a lag-free, cinematic Vanilla+ experience.
![2Gather [Aeronautics]](https://pub-2ae937f770284535a96c3330f91236aa.r2.dev/thumb/curseforge/228022.webp)
2Gather [Aeronautics]
A Create-focused modpack with advanced redstone logic using More Red, magic through Ars Nouveau and Apotheosis, engineering, automation, airships, exploration, and carefully selected mods for a polished, high-performance experience.
Cobblemon Lite - Performance Edition
The ultimate lightweight Cobblemon experience for 1.21.1. Extreme optimization with Sodium, ultra-fast loading, and low RAM usage. Ideal for low-end PCs and laptops.
ChunkDeleter
Advanced chunk cleaner plugin that deletes unused chunks for Paper/Folia servers
Minecraft Revitalized
Minecraft Revitalized brings new life into your world by enhancing every aspect of the game. With stunning visuals, new structures, new biomes, villages enhancements, fresh animations, better combat, wizardry, QOL features and more. Includes server mods.
Everything from Nothing
A 1.21.11 Expert Skyblock experience built entirely around vanilla mechanics, enhanced only with light QoL & performance mods.
Staff X-Ray
A powerful and optimised X-Ray for your server's staff
Glow Squid Spawn Fix
Fixes spawning of glow squids in random water columns which leads to unnecessary items in the world.
PokéDoge
Cobblemon, Farmer's Delight, Oritech, & Etherology create a well blended pack that mixes Minecraft and Pokémon with technology, magic, exploration, and cozy building!
Optimized Animations
A ModPack that make Minecraft more pleasant to look at, this is the optimized version.
Orbital Staff
This Mod adds Many New overpowered Items to the game AND MORE!
DrArora Texture Pack
This texture pack is designed for players who enjoy PvP, SMP, and survival while keeping the classic vanilla feel of Minecraft.
Ban bat
Do you hate these annoying little pests? This mod/datapack can make them disappear!
Explorer's Haven
Explorer's Haven is an adventure modpack enhancing exploration, biomes, dungeons, and visuals for smooth performance. Discover new landscapes, battle mobs, and enjoy quality-of-life features while preserving Minecraft’s core experience.
Stellar Wynn
This pack has been optimized and hand tailored for the best Wynncraft gameplay!
Advanced AFK Zone
A high-performance AFK hub plugin that teleports players to a safe, custom-generated End dimension. Players passively earn Shards over time which can be spent in a built-in GUI shop for premium rewards!
SMP Hardcore Aesthia
🎮 Hardcore SMP – Vanilla+ Modpack (1.21.5)🧭 Concept: A lightweight, immersive Vanilla+ experience focused on survival intensity, exploration, and atmosphere — perfect for Hardcore mode. Adds depth without straying too far from Minecraft’s essence.
UnderWorld SMP Modpack
A heavily modded Minecraft experience focused on underground exploration, survival, and community. Dig deep, build creatively, and thrive in a world where the real adventure starts below the surface.
Endless City LITE
Turn your world into a vast & endless city, and try to survive this barren landscape. A more performance friendly version.
Roziaria
Built around the Create mod and its addons, with 70+ new biomes, new structures and Fresh Animations, while staying mostly lag free! Now with Modular Backpacks.
G1axWorldGenerator
G1axWorldGenerator is an open-source Minecraft world generation plugin designed to create biome-aware, layered terrains with realistic hills, valleys, and block depth structures.
BetterReset
Minecraft plugin that lets you safely reset a world’s Overworld, Nether, and End while the server is running, with player protection, async deletion, and full regeneration in one command or GUI.
WorldResetPlugin
Easily reset and regenerate worlds by command.
Hearthgrove Cobblemon
The Official Modpack for the Hearthgrove Minecraft Server! Adds new biomes, dimensions, pokemon, breeding, shiny hunting methods, and more! (Required for full access to the CobbleCubs server)
Astruct
Async Structure Generator: build jigsaw structures far beyond vanilla limits with off-thread planning to reduce server lag.
PolarConverter
The Fabric Mod will Convert your Worlds into Polar
Better MC : Hunter's Edition
A lightweight yet immersive survival modpack that transforms Minecraft into a rugged hunter’s journey — no magic, no fluff, just exploration, danger, and the thrill of the hunt.
Kelly's Origins+
Simply contains Origins and optimization. Nothing unnecessary.
CobbleSpawnRegions
This mod adds region based custom cobblemon spawning
COBBLEMON DEFINITIVE
COBBLEMON definitive on 1.21.1 (Fabric). Optimized pack with +70 QoL and performance mods (High FPS). Includes mounts, legendary Pokémon, and new challenges. The smoothest, most stable, and immersive Pokémon adventure. Multiplayer ready!
Terratec
A Vanilla+ pack with a stunning new world generation!
![Unofficial Cobblemon [Fabric]](https://pub-2ae937f770284535a96c3330f91236aa.r2.dev/thumb/curseforge/462815.webp)
Unofficial Cobblemon [Fabric]
The unofficial version of Cobblemon Modpack with tons of extra features and performance mods!
![TERRA [Wild Adventures]](https://pub-2ae937f770284535a96c3330f91236aa.r2.dev/thumb/modrinth/111966.webp)
TERRA [Wild Adventures]
A Minecraft modpack designed for realism and adventure, featuring custom world generation, immersive dungeons, new mobs, weather and catastrophes, along with enhanced sounds and visuals.
Wicked Witch of the West
Master forbidden spells, travel through dimensions, and claim your magical destiny...
tomocraft
A Vanilla+ experience with subtle enhancements. Improved animations, better terrain, new structures, QoL tweaks, a minimap, and even a few custom bosses. Perfect for players who love vanilla Minecraft but want a smoother, richer, and slightly expanded adve