Minecraft Java 1.21 Mods
Browse 129,818 free mods for Minecraft Java 1.21 — popular picks include Blastingcraft, ScaleRays, Pale Garden Trader.
Step by step: How to install Minecraft Java mods & modpacks
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Blastingcraft
Time to get explosive
ScaleRays
A small mod that adds ScaleRays that work with pehkui
Pale Garden Trader
Adds a Pale Garden Villager and Creaking Armor to the Game
Hollow Allay
Change the texture of the Allay to a cute Hollow Knight!
MC Earth for 1.21.5(1.21)
This resource pack will add textures of mobs from Minecraft Earth with new models from snapshots (tested on 1.21)
Mob head to Player head
Using this datapack, you can turn any mob head into a player head simply by using a Book and Quill along with any mob head in the game, such as a zombie head, a dragon head, or even a Carved Pumpkin.

Purposeful
A simple mod which adds purposes to underused/unused vanilla features.
King George Want No Smoke (VPB)
Vic's Point Blank, Founding fathers intended classic (survival friendly). Fires 4 shots per minute for 4 ruffians out and away!
Nether Islands
Overrides the Nether's generation. Datapack version of the Nether Islands mod.
GänsestollenVonFraser
Experience an adventure
Anti Boss Grief
Prevents the Ender Dragon and the Wither from giving your world a makeover.
AnimeCraft(shader)
Anime cel-shading shader for Minecraft, Iris only, no OptiFine required. Lightweight, crisp outlines, cartoon look, runs on low-end PCs.
Cu Again
Mix of Create6.0/0.5 Copper
Better Crafts: Sculk Catalyst
Better Crafts: Sculk Catalyst is a data pack that allows you to craft sculk catalyst [1.19.x - 26.2]
Leather Recipe
Adds leather recipe to your game
Dino Nugget 3D Food
Turn meats into dino nuggets, and more !
InventoryExchange
InventoryExchange is a Minecraft mod that extends player inventory management and integrates with ProjectE’s EMC & knowledge systems to provide a creative-like experience while in survival mode.
Emage
High-performance image and GIF renderer for item frames.
Creeper Cutwater
Welcome to the 4th Iceberg Modded Minecraft Server! 🎉 Massive update adds new biomes, furniture, blocks, and mobs, plus returning favorites like hats, aircraft, and waystones. With revamped dimensions, festive decorations, and expanded cooking mods.
CU later
My take on a datapack that replaces redstone component's iron with copper (and some other tweaks)
re;Tensura
🧬 ᴿᵉ;tensura — A TTIGRAAS Minecraft SMP featuring factions, PvP, skills, nations, bosses, dungeons, and constant progression. Active staff, balanced gameplay, events, and a custom 1.21.1 modpack. Join: https://discord.gg/Ya6BA38uUY
StorageSystem
A simplified plugin version of Applied Energestics 2's ME storage networks
Romanus Numerus
Adds Roman Numerals for very high level enchants

Simple Kill Command
Configurable self-kill command for Bukkit, Paper, Folia, Fabric, Forge, and NeoForge.
Strawberry hearts
Inspired by strawberries from Celeste and CollabUtils2. Replaces hp bar
Highland Cow
A remodel of Minecraft's cow mob.
Cardboard Packed
A lightweight and beautiful create-like experience
Fabulously Survivalized
Various mods fit in a small package to add some QoL features, and still *feel* vanilla
ZerverCraft
ModPack for ZerverCraft Server
[TACZ]CS2 to MC
A gun pack with different varieties of CS2 weapons(Mesh models)in TaCZ mod
Blizzard Weapons
God weapons and divine crowns for Ice, Wind, Water & Fire — a server-synced elemental arsenal for Fabric 1.21.11.
Complete And Total Terrain Overhaul (CATTO)
Overhauls vanilla terrain to make it much larger and more realistic
No Distractions
Minecraft mod to remove distractions from the building aspect of Minecraft.
BlockProt Reloaded
An advanced Bukkit protection plugin for chests, furnaces, and more, built with a modern GUI and packed with powerful features and extended functionality.
Super Mario World Texture Pack
This is the Super Mario World Texture Pack.
Alt Look
Rust-style alt look in Minecraft!