Minecraft Java 1.21 Mods
Browse 333 free mods for Minecraft Java 1.21 — popular picks include Biome Advance, Jungle Sapling Fix, Advanced ore generation.
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Biome Advance
Add Biome Advancement

Jungle Sapling Fix
fixes the jungle leaves loot table to be consistent with other sapling drops
Advanced ore generation
This datapack changes ore generation to improve the progression in minecraft. Better ores now generate deeper than before and all ores have their specific biome where they generate more abundantly.
Japancraft
This mod adds new japanese-style features like a new mob from princess mononoke, structures, a new biome, a new dimension, armor, weapons and more!
Disable Zombie Sieges
Disable Zombie Sieges from spawning and messing up your village in all overworld biomes.
Feningland
A Mod Aiming to Revive the feeling of classic 1.12.2 mods by including lots of Dimensions,Biomes,Entites,Weapons and a whole lot more.
Cobblenormals - Cobblemon + Abnormals Compatibility
A datapack that adds Cobblemon compatibility to the Abnormals suite of mods. Includes spawn additions, drop changes, and block/biome tagging.
wandering explorers
wandering traders trade biome explorer maps
Biome Scanner
Adds a new item that can be used to locate biomes.
BiomeLimits
Add Biome limitations for crops, saplings and other blocks.
Colorfull Biomes
This datapack adds a collection of colorful biomes, for creative worlds or builders! Applicable with the /fillbiome vanilla command and compatible with world Edit.
Nether's Paradise (Hell's Paradise)
Adds Biome, Powers, Mobs, Weapons ect... from Hell's Paradise !

Sweetymod
A sweet mod that adds a new candy-themed dimension, complete with new blocks, items, and a biome to explore.
Custom Biome Downloader
A mod used to save all biomes from a server, including custom ones! Can be used together with a world downloader to get a more accurate world!
To Adventure
Explore new custom biomes, upgrade your skills, and battle unique monsters in your journey — your adventure begins here!
Genshin Impact Lunar Expansion
It is a massive expansion that brings the magic, weaponry, and currencies of Teyvat into Minecraft, while completely overhauling your end-game exploration with breathtaking new biomes, mystical abilities, and custom entities.
ConvenientCrafting
This mod adds ways to un- craft things, oasis, greenhouses, and more to come! Surviving in desert biomes becomes much easier with this mod, adding ways to craft essential resources like wood with sticks.
Biznesmod
This mod adds new biomes, a new villager proffesion, new mechanics (upgradable abilities, collecting iron dust to make iron ingots, etc...), new custom structures (10+), a TNT cannon which shoots tnt where you look and some new redstone components.
Aran's Discord Presence
A lightweight, customizable Discord Rich Presence mod for Fabric. Features a built-in settings menu to toggle Server IP, biomes, dimensions, and player heads on your Discord status.
Wilderness Wayfinder
A Natures Compass like Datapack to find your favourite Biomes
CobblemonSuperflat
It's like superflat but the Nether is also flat and biomes can change. Works on the Cobblemon 1.6 snapshots
Better Reimagined
Enjoy this survival experience in an epic and immersive adventure. It introduces new mechanics that enrich gameplay with dynamic combat, while vibrant new biomes and impressive structures encourage exploration with unique and challenging mobs
Slimes Everywhere
Allows Slimes to spawn at night in any biome

Lavastone Biome
BOOM! Explosion!! Lava!!! Yeaah!!
Heroic Biome Compass
Craft a special compass to track any biome with a price
Okil6's biome dimensions
Every Biome In Minecraft Is A Dimension!
Uniform Grass Color
This mod makes it so all grass looks the same! Sometimes when you find the perfect building spot you just cannot build there because of how badly the mix of biomes is, but when installing this mod, it allows you to easily fix this!
Pixelmon: No More Ultra Space
No More Ultra Space [Pixelmon Sidemod] removes Ultra Space and wormholes for good, relocating every Ultra Beast into matching overworld biomes with beast chests, horde battles, and ultra terrain blocks all aquirable from the overworld.
Everything Refined II
Take the game to the next level with stunning visuals, new gameplay mechanics, and a plethora of structures and biomes to explore!
Sweet Apocalypse Biome
Dive into a world transformed by confectionery chaos with the Sweet Apocalypse Biome mod!
WWOO Islands Dimension
WWOO Islands Dimension is an addon for William Wythers Overhauled Overworld, which add a new dimension of floating islands, using the WWOO biomes.

Pixelmon PokeStats
Lightweight pixelmon mod that displays a Pokémon's IVs and Nature in chat the moment you catch it.
BiomeTitles
Configurable announcement plugin for travel between biomes!
Beyond The Clouds
Discover clusters of floating islands mirroring familiar biomes and bridge the gaps as you gather resources above the clouds.
Nations Odyssey Stone-like
A datapack/mod that allows Andesite, Diorite, Granite to be used to create Stone tools! It also has compatibility with Deeper and Darker, and Oh The Biomes We've Gone!
Acatar
Mod created by Phax709 that improves the basic content of Minecraft by adding new biome, ore and blocks, this mod is more based on exploration with plants and trees different from what Minecraft offers.