Minecraft Java 1.21 Mods
Browse 70 free mods for Minecraft Java 1.21 — popular picks include Profundis: Nine New Quality Cave Biomes, Click Villagers, No Man's Land.
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Profundis: Nine New Quality Cave Biomes
A world generation mod adding in nine new cave biomes, to make the underground more varied.
Click Villagers
Click to pick up villagers, reset their trades, change their biomes, claim them and much more!
No Man's Land
An uncompromising Overworld Overhaul, Enhancing world generation in every biome and environment.
Custom Biome Saplings
Allows Terralith and Blooming Biosphere trees to be regrown using vanilla saplings
Foggy Pale Garden (FPG)
A mod that adds fog to the Pale Garden biome. But you can customize any kind of fog anywhere you like!
Cavernous
Cavernous is a datapack that brings many new biomes and features to the caves of Minecraft while maintaining a vanilla like feeling.
RPGTitles
Small, cosmetic datapack that adds titles to small things in the game! See the dimension name when you switch dimension, see the current biome you are in and maybe get something when you kill a powerful foe..
Classic Beta Biomes
Brings back the nostalgic feel of old Minecraft with a classic Beta-style biome!
[1.21.11 UPDATE] Better Biomes
Adds many different cool and amazing biomes, blocks, items, trees, and features to Minecraft.
Archaeological_Research:Exploration
Archaeological research is an adventure mod that studies civilization and nature.
Better Birch Forest
Better Birch Forest adds new vegetation and more Saturatet colors to the Birch Forest. Also it adds Fireflys

More Tools N' Stuff
MTNS adds in brand new biomes, blocks, items and more into Minecraft!
Outer End Wilds
Adds Two New End Biomes inspired by Minecraft Dungeons
Biome Shader Switch
🗸 Switches shaders based on the player's current biome. Supports Iris & Oculus shader packs with per-biome, per-height, and fallback shader rules. Auto-detects all biomes including modded ones — zero manual config needed.
Structure nature(Alpha)
we add everything we think is fun anything that will enhance the minecraft experience
Global Emeralds
Unlocks Emerald Ore to spawn in all biomes.
More Little Decorations
Adds details in the form of different stones from different materials to each biome. In the future I plan to add more details such as sticks flowers fallen leaves and the like.
More Biome Coloured Blocks
Moss, Azaleas and more made biome coloured!
Terraspread - Spread Biomes
Spread biomes across biome borders with a new craftable item
Salinity
A New Cave Biome, a New Armor, a New Mob, and more.
Cool End
This mod adds new biomes, structures, mobs and resources to the End and Overworld, expanding exploration and improving gameplay and visuals.
Corrupted Nether
Adds a Corrupted Forest biome to The Nether
Make It Rain!
Client-side mod that adds rain to normally dry Overworld biomes
Biome Spreader
Adds recipes for potions that can spread biomes
Mo Flowers
MoFlowers is a Minecraft mod that adds new flowers, shrubs and decorative blocks, with associated mechanics, biome generation, flower management API, custom rendering and localisation support.
World Expansion
This mod upgraded vanilla biomes and adds new ones for a more interesting journey around the world! Update 1.0.0 - Savanna and Dark Forest
Distant Lands
Discover immersive biomes inspired by Brazilian flora, 500+ blocks, Carpenter Table, Hollow Logs, and Crawl for hidden adventures!
RoseBackport
Adds rare classic red and blue roses to specific biomes in your world!
Procedural Trees
This allows a builder to create a forest with custom trees in seconds by spawning a spawn egg, each tree different from one another.
Jungle Update
Mod has been merged! - https://modrinth.com/mod/jaizmod This is to keep the work load down for myself, and keep updates coming! Adds new jungle related features
OraxenNature
OraxenNature introduces a simple way to populate your world with your Oraxen blocks.
Desolate Pale Garden
A datapack which removes all hostile mob spawns in the Pale Garden except the Creaking, which adds to the ambiance of the biome!
Canopy
Adds rainforests to Minecraft including 3 new biomes, rainforest mobs and more!
Arts & Crafts x Nature's Spirit
This mod adds integration features for Arts & Crafts and Nature's Spirit for a smooth gameplay experience!
NitroPlots
The Best & Newest Plotsquared Addon with Borders ✔️ Walls✔️ Member Settings✔️Flags✔️ Biomes & more!
Desolation: Reburn
Adds the charred forest, a spoooooooky biome to the Overworld!