Minecraft Java 1.21 Mods
Browse 108,823 free mods for Minecraft Java 1.21 — popular picks include Jonn's Trophies, BucketLib, Low On Fire.
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Jonn's Trophies
Adds highly customizable trophies to hand out as quest rewards.
BucketLib
Library mod for custom buckets (Forge, NeoForge, Fabric, Quilt)

Low On Fire
Low fire on your screen! Vanilla Friendly
Panda's Falling Trees
Make trees fall when cut down
Immersive Optimization
A lightweight entity-tick-scheduler for doubling your TPS.

Exposure
Camera mod with focus on process and aesthetics
Simply Houses
A simple mod that generates houses and similar structures to enhance your worlds
Cull Leaves
Adds culling to leaf blocks, providing a huge performance boost over vanilla.
Let Sleeping Dogs Lie (Forge)
Dogs should not be left sitting. They should be allowed to lie down. This lets 'em.
Fabric Seasons: Delight Compat
Farmer's Delight compatibility for Fabric Seasons
Luminax
Adds a bunch of simple glowing blocks to the game
YUNG's Extras (NeoForge) [1.20.4 - 1.21.1 ONLY]
Extra structures, features, and vanilla+ content suitable for any modpack
Cobblegen Galore
This mod lets you automatically generate essential blocks like cobblestone, basalt, and more
Longer Chat History [Forge/NeoForge/Fabric]
Makes chat history much longer

Bliss Shaders
A well performing fantasy styled shaderpack with emphasis on scene variation and customization.
Nameless Trinkets
Add powerful trinkets, which you will find when exploring the world.

Elytra Slot
Adds accessory support to the elytra so you can fly and wear chest armor at the same time. Formerly known as Curious Elytra and Elytra Trinket.
V-Tweaks
Adding New Mechanics without New Items!
Farsight [Fabric]
See far chunks on clientside, even if the server has low view distance, Fabric
Sussy Sniffers
Makes sniffers sniff suspicious sand and gravel, makes them rideable and adds more sniffer variants.
Farsighted Mobs (Forge & NeoForge)
Helping mobs see in the distance
Signpost
Signposts for teleportation and decoration
Better Ping Display [Fabric]
Adds a configurable numerical ping display to the player list
Frostiful
A Vanilla+ Snow & Frost Update Survival Experience for Minecraft - sister mod of Scorchful!

Bad Wither No Cookie - Reloaded
Localizes the wither and dragon death sounds.
Hey Berry! SHUT UP
Villagers will no longer take damage from berry bushes and berry bush thorns are no longer armor piercing
Oracle Index
A minecraft fabric / neoforge client-side documentation viewer mod, intended to be used with wikis alongside moddedmc.wiki
Monocle
An addon that allows Iris to run shaders using Embeddium

Particular ✨
Enhances Minecraft's ambience with hand-crafted visual effects like fireflies, falling leaves, and waterfall cascades
Pipe Connector
A tool that places pipes automatically along a selected route, with the option to set the depth. Useful for building organized networks without placing each pipe manually
Feature Recycler
A simple mod that prevents crashes between world generation mods caused by Minecraft's Feature Cycler.
Advanced Loot Info (ALI)
EMI/JEI/REI plugin for displaying advanced information about loot tables and villager trades
Item Borders [Fabric]
Add colored borders to inventory slots to make your rare items stand out!
Custom Villager Trades (Forge/NeoForge)
Create your own villager trades
APTweaks: Core (11.x Classic)
The core is required for all adaptive performance tweaks modules and provides a shared API, monitoring functionally, events and commands.
MineMenu
Mine Menu - Radial menu, 'nuff said