Minecraft Java 1.21 Mods
Browse 126,829 free mods for Minecraft Java 1.21 — popular picks include Debris Outline, Wynncraft FPS, Theosis — RPG Progression Plugin (Loot, Gems, Bosses, Perks).
Step by step: How to install Minecraft Java mods & modpacks
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Debris Outline
added outline to ancient debris
Wynncraft FPS
A lightweight, performance-optimized modpack built for Wynncraft players. Boost your FPS, reduce lag, and enjoy clearer visuals with glowing mythic boxes and clean client-side tweaks. Perfect for smooth gameplay on any PC.
Theosis — RPG Progression Plugin (Loot, Gems, Bosses, Perks)
Apotheosis-inspired RPG progression! Modular loot, sockets, gems, custom towers & scaling bosses.
Blastingcraft
Time to get explosive
Backpack Bundles!
A resource pack that replaces bundle texture to look like a backpack. Now comes with custom sounds (optional) and dyeing support.
Pale Garden Trader
Adds a Pale Garden Villager and Creaking Armor to the Game
More Ores N' Tools
a simple mod that adds more ores, and the ores Armour and Tool counterparts
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.
Exline's Copper Equipment X Golden Days
This is a recourse pack the re-textures Exline's Copper Equipment to fit with Golden Days recourse pack
Miss Circle Enderman + Oreo Ender Pearl
Turns Endermen into Miss Circle from FPE Also turns enderpearls into Oreos

Copper Armor/Tools
Datapack that adds craftable Copper Armor and Tools.
Nether Islands
Overrides the Nether's generation. Datapack version of the Nether Islands mod.
Counter Mod
Do a countdown in the chat
Reef
Library that extends vanilla worldgen by providing alternatives to unmodifiable features
GänsestollenVonFraser
Experience an adventure
Seafloor Gardening
Makes Spreadable Blocks like Grass Blocks, ignore water.
Expritan Collection
Main modpack used by Nonno - Contains the suggested mods for the expritan server + some additions.
ProxyUtils
Utility commands and features for Minecraft proxies.
UnstableOrbital
A server-side mod turning fishing rods and tridents into orbital weapons. 7 weapon types, 11 exploit commands, admin tools. Fabric + NeoForge 1.21.1. RU Серверный мод, превращающий удочки и трезубцы в оружие орбитального поражения.
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]
Hit Accuracy Tracker
shows ur hit accuracy while pvping
Voidds PvP & Utils
A Netherite-Focused pack that keeps the Vanilla 16x16 feel
Leather Recipe
Adds leather recipe to your game
Vanilla Weapon Expansion
A resource pack that adds new weapon textures
Achievement & Quest Tab
Comprehensive progress tracking system that displays achievements (advancements) and quests in player tab list with full FTB integration.
Aesthetic Grass
Improving grass & making it look more dynamic! Only works with Continuity or Optifine.
Rocket Redux
Rocket riding and other auxiliary features
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

BetterTeamsClaim
This plugin serves as an addon for the BetterTeams plugin and is used to create regions for teams.
AngleTracker
AngleTracker is a mod that helps players precisely track and save their viewing angles (yaw and pitch), making navigation and building in Minecraft easier!
Bucket Hues
Different hues of water in the fish buckets to be more in line with the tadpole bucket.
Mobo's Structures
Pirate Ships! Castles! Dungeons! Towers and More! If you're an explorer, this datapack is for YOU!
Simple, Informative Redstone
Simpler textures for redstone, while providing valuable information.
ZerverCraft
ModPack for ZerverCraft Server
Idle Generators
Place a generator and let it work, even offline. Craftable block-generators that produce resources passively over real time, with a live HUD and full Cloth Config support.