Minecraft Java 1.21 Mods
Browse 109,392 free mods for Minecraft Java 1.21 — popular picks include Stackable127, [TaCZ] Curios For Ammo Box, Croakma-keys.
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Stackable127
Stackable is a mod that increases all block stacking limits to any value less than 127 for Minecraft 1.20-1.19.4.
[TaCZ] Curios For Ammo Box
Allows tacz ammo box to be placed in curios slots

Croakma-keys
Croakma-keys replaces Froglights with different types of Chroma-key Colors so you can effectively make Green Screens in Minecraft!

CursorCentered Fix
A Minecraft mod that fixes the cursor centering issue that occasionally happens when opening a GUI.
Piggyback
Allow player riding each other and replace the default player sitting mechanic with a piggyback-style ride. Carry your friends on your back for fun, teamwork, or pure chaos!
Enhanced Snowmen
Finally, your snow golem army is not completely useless anymore.
Any Lanterns!
Add more lanterns with special models for decoration in vanilla style.
Cyanide
Reduces data pack world generation pain by providing useful, informative error messages.

3D Armor
Renders the player and entity equipped armor in 3D and is compatible with most modded armor, dyes, and trims with support for 16x resource packs.

OverflowParticles
Advanced particles mod for 1.8.9, made with OneConfig.
Ecliptic Seasons: MultiMod Patch
Improves compatibility between other mods and Ecliptic Seasons by adding seasonal and weather behavior.
More Animals [FORGE] - 1.21 UPDATE!
A vanilla+ modpack ideal for animal lovers!
GeForceLegend's 3D Default
A default-look resource pack with 3D models
Default-Style Halloween Pack
A Halloween Themed revamp of the Default Experience!
More Craftings of Runes [More Magic Series]
More way to obtain your favorite Rune!
Macaw's Quark
A multiple compability for Quark with Macaw's Mods like Bridges/Roofs/or Fences.

Berserker (More RPG Classes)
Enter a wild, relentless battle trance as a Berserker! Spell Engine Add-On

Create: LazyTick
A commitment to optimizing Create lag in large quantities!

(Bee's) Blockier Goat Horn
A blocky model for the goat horn item
Jake's Build Tools
Adds a bunch of craftable tools that help make building easier!

Fantasy Texture Pack
Transport yourselves to a time where knights were heroes. A port from Legacy Console Edition.
Toms Storage Star Optimized
Lightweight optimization mod for Tom's Storage.
Abes Hutt's Cobblemon
This is a modified fork of the Cobblemon mod for use in the Cobblemon Academy modpack to better integrate with the rest of it's features.

Witcher (More RPG Classes)
Slay monsters like a Witcher! Spell Engine Add-On
Not Enough Trinket Slots (NETS)
A Trinket add-on that enables more slots than you'll ever need!
Better Library
This is just a simple lib for config, 1st join message and live message
Drodi's Illagers
Reimagined Illagers with new models, textures, and unique features!
Legacies and Legends
A complete and highly immersive exploration, loot and lore expansion, with new structures, artifacts and more to discover.
Modded Coffee GUI
An addon to Dark Coffee GUI to add mod support

Roundista - LabPBR
A PBR resource pack which changes the Pixel-Art style and makes it Round.
Soul of Cinder Standalone 1.21
Standalone Version of the Soul of Cinder Boss and Abyss Watchers Boss for 1.20.1 and 1.21.0-1.
LeafRTP | Paper, Folia, Velocity
The only Async RTP benchmarked (so far) to run without stalling Folia servers • Paper & Velocity
Better Runtime Resource Pack (BRRP)
A library mod to generated resource at runtime. Based on and made enhancements on ARRP mod.

Festive Mash-up
Wander through a winter wonderland! A port from Legacy Console Edition.

caramelChat
Provides an enhanced CJK(Chinese, Japanese, Korean) IME input experience in Minecraft.
Tax' Village Architect
Village Architect is a Minecraft Forge modification aims to upgrade villages.