Minecraft Java 1.21 Mods
Browse 43 free mods for Minecraft Java 1.21 — popular picks include Dye Depot, The Copperier Age: Copperier Copper, Mechanical equation GUI Add-on for Shulker Box Tooltip mod.
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Dye Depot
Enhances your Minecraft experience with 16 vibrant new dyes and various other tweaks
The Copperier Age: Copperier Copper
Expends and enhances the theme of The Copper Age drop. New blocks and mechanics, many tweaks, and awesome optional retextures!
Mechanical equation GUI Add-on for Shulker Box Tooltip mod
This is an add-on for Mechanical Equation GUI pack,It made unique textures for most of the GUI images of Shulker Box Tooltip mod.
Psittacine
Breedable parrots, 35 new parrot skins, colorful feather blocks, transport cages, and functionality tweaks.
Desire
A mod that focuses on building and simple gameplay tweaks to expand the classic experience to the max!!
Item Frame Tweaks
A simple mod to rid yourself of those pesky item frame nametags and remove the invisible item frame offset
More Colorful
More Colorful is a mod that aims for expanding vanilla, improving players' quality of life and making Minecraft world more colorful.
Leaves Tweaks
Adds the ability to craft and crossbread for leaves
Improper's 3D Minimap
Minimap but with 3D terrain. Enhance your survival caving experience with this radar!
Better Nametags
A mod that adds a few quality of life improvements to the rendering of nametags.

CreativeUtilities
Collection of a lot of tiny features that help with building
Routes
Physical roads generated in world-gen that connect your world's structures - named routes, towns and areas, with waypoints and full Xaero map integration.

Player Locator Settings
A datapack that gives players control over their locator waypoint
Halloween Tweaks
Small and minor halloween-related tweaks to make your game spookier!
CU later
My take on a datapack that replaces redstone component's iron with copper (and some other tweaks)
Cauldron Concrete
Powder into a cauldron gets you concrete! Vanilla friendly and perfect for servers wanting a survival experience of the cauldron concrete functionality from Vanilla tweaks.
Bare Bones - Stained Glass Fix
This resource pack changes the stained glass blocks and panes in the "Bare Bones" resource pack by RobotPants to look more vanilla by adding borders and lowering their opacity.
Easy Bee
A completly new way to trasport bees with extra tweaks
⚙️Create: Kinetic Waypoints
A Create addon that adds kinetic-powered waypoints and a mechanical fast travel network.
Longuint's Vanilla Tweaks
This mod changes the vanilla experience in a way that aligns in how I like to play the game.
Way(More)Points
Tired of lodestone compasses taking up inventory space? Repurpose them as lodestone waypoints and see important locations on your HUD! Customize each waypoint with over 50 million combinations.
BalancedVanilla
Balanced Vanilla is a Minecraft mod that aims at balancing some vanilla concepts, while adding a few quality of life changes and machanics to the game, without being too invasive or non-vanilla friendly.
Goddess UI
An UI resource pack that adds new features, tweaks and UI designs to make your Minecraft gameplay better!
Arcatweaks
Various tweaks for the Arcamere modpack that did not fit into their own mod.
Crafting Changes
Tweaks crafting recipes as a data pack to add more ways to craft things that feel they should be able to be crafted that way.
StellarCraft Tweaks
Ever wondered where the extra wood goes when crafting stairs? Apparently, it disappears into the void—but not anymore! With this datapack, you can reclaim it. and more!
Creatively Expressed
Fabric Minecraft Mod which adds utilities for Admins and Creative Players
Waypoint Marks
Make your mark on your worlds with Waypoint Marks. The Locator Bar can show the way to places you mark

Glance
GUI Tweaks for Minecraft
Wildborne - Worldgen & Data Tweaks
This is a specially designed Modded DATA pack to implement worldgen/tag/data tweaks for the upcoming Wildborne Modpack!
Rusty Robots
A resource pack that turns Copper Golems into retro style toy robots! The robots still oxidize over time and have emissive lights on top of their head that turn off when deactivated.
recobbled
Tweaks the stonecutter to make switching block variants easier! Also adds a tuff recipe.
Dye Recipe Tweaks
Modifies dyed item recipes from mods to be more consistent with vanilla crafting.
Configurable Client Tweaks [CCT]
Adds Extra client options for utility and cosmetics
Area Selector V1
A client-side utility mod for visualizing large-scale farm and mining areas by generating customizable 3D highlight boxes between two diagonal coordinates.
AmavyaDecoration
AmavyaDecoration is a plugin that provides additional ways to decorate your Minecraft worlds and builds and adds some quality of life features.