Minecraft Java 1.21 Mods
Browse 126,829 free mods for Minecraft Java 1.21 — popular picks include ⭕ Orion [1.8-1.21+] ➡️ Free anticrasher, blocks exploits instantly, Stem Fix, Primity Flint Tools Reskin.
Step by step: How to install Minecraft Java mods & modpacks
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⭕ Orion [1.8-1.21+] ➡️ Free anticrasher, blocks exploits instantly
⚡ Blocks every crash exploit before it hits — free, zero setup hassle
Stem Fix
The melon stem isn't normally attached to the melon when it grows, but this resource pack fixes that!

Primity Flint Tools Reskin
A Primity flint tools reskin to match the Excalibur resource pack
Loconautics-SNR hullsteel parity pack
A resource pack to rename all locometal blocks in Steam N Rail 1.21.1 to parity the hullsteel blocks in the upcoming loconautics mod
Sandstone break to sand
This project let player get sand from sandstone

Dusted
You can now crush your favorite ores into dust. Very exciting, I know.
AdvancedChatFormatter
Ultra-lightweight, high-performance chat formatting plugin built for Paper servers running Minecraft 1.21 up to 26+, supporting Java 21 through Java 25.
[BodyHealthAddon] SkriptAddon
Relays BodyHealth's API to Skript
Much Better Raids
This datapack or mod makes raids much better.
Tweakie
Adds lots of Quality of Life texture tweaks to make your gameplay better.
Huntermark
This project adds custom swords and the ability to put bounties on people! (ALPHA version)
Oxidation in the Cauldron
Speed up copper oxidation using a cauldron — no more waiting years.

multiaxisrot
Backports 25w46a multi axis block/item model element rotation to 1.21.1, so resource packs built for newer Minecraft versions.
Octaves of the One
A Fabric tech mod for Minecraft 1.21.4 themed on Walter Russell's two-way universe of rhythmic balanced interchange. Draw Light from the still centre, wind it through the octaves, and spend it across a wired and wireless grid.
BedrockMenuForms
Create native Bedrock form menus from YAML for Paper/Purpur servers using Floodgate.
Manhunt-1.21.X
Advanced Minecraft Manhunt plugin
Harpy Express RU
Это русификатор Harpy Express Extended сборки

Broken Redstone Lamp Mod
This project adds a broken redstone lamp. It adds another redstone lamp that doesn't work and doesn't do anything.
Frick the Deep Dark - 1.18.2ify your game
trims the lower-quality microsoft content from after 1.18.2
SimpleTrashCommand
A simple trash command that allows you to put items into an inventory to delete them.
ProxyLogger
lightweight Discord logging plugin for Velocity networks. It tracks player activity like chat, commands, joins, leaves, and server switches, then sends clean, organized logs to per-server Discord channels.

SnurfTech's Emerald Update
This mod adds emerald tools and armor to Minecraft 1.21.8.
Copper To Netherite!
Turns your copper items to netherite! perfect for trolling!
UUUHHHMMM, its hardcore??
just changes survival hearts to hardcore hearts
Compressed Chests
Organised and compressed chests
SkripyTpa
A high-performance teleportation suite designed with aesthetic configs.
Fleshy Anvils & Inventories!
An animated fleshy reskin for the inventory, recipe book, and anvil! In order to use this resource pack, you must also have optifine or animatica!
NEXADMİN
NexAdmin adds an in-game administration panel for Minecraft servers, allowing staff to manage players, moderation actions, and reports through a graphical interface.
+1 Visible Ores
This resource pack adds visible ores, but better! Not many ores are supported, but more coming soon! (Also hides annoying glow Lichen!)
Warmaker's Better grass
makes grass look better and a new model
Progression Enchained
This mod completely changes progression in attempt to make progression more difficult but balanced, enjoyable, and most of all non-skippable. It is highly likely to conflict with mods that require things like diamond, iron, gold, netherite, and villagers.
Demiflux Pride Flag Hearts (7-Color)
Changes the Minecraft Hearts to a Demiflux Pride Flag (7-Color) – Part of the Pride Hearts collection.
LiarsLounge - Bluff, Betray & Survive
Deceive friends, expose liars, and survive the ultimate mind game in Minecraft.
OrbitUtils
Orbit is a all-in-one Paper 1.21 server utility plugin featuring homes, warps, TPA, kits, mail, nicknames, vanish, fly, god mode, and more

OptiMix
HUD & utility mod for Minecraft that gives you control of your screen.
Entity Controller Blocks
Control any entity's movement, rotation, and actions with just a few simple blocks.