Minecraft Java 1.21 Mods
Browse 124,287 free mods for Minecraft Java 1.21 — popular picks include PlayerAbilityLib, Quilt Kotlin Libraries (QKL), Inv View.
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PlayerAbilityLib
Your good pal, fixing ability incompatibilities
Quilt Kotlin Libraries (QKL)
Quilt's official Kotlin libraries
Inv View
Allows you to open and manipulate the inventories and ender chests of online and offline players. Server Side
AL's Zombies Revamped
A pack that revamps Zombies and adds more variants!
Tiled Cauldron
Connect pipe to Cauldron
Solar Cooker
Solar Cooker / Furnace - Cooking without fuel (Forge, NeoForge, Fabric, Quilt)
Synesthesia: Sound Visualizer
Addon to Extreme Sound Muffler that allows you to locate sound sources (or a standalone keybind)
Default HD 512x
The classic Minecraft experience but in amazing 512x HD!
Immersive Overlays
Overlays useful info like coordinates and the time onto your HUD - as long as you have the right item in your inventory (or bundle!)
Better Fullbright
Adds Fullbright for Vanilla, Optifine, and Sodium. For version 1.20.X and 1.21.X
Respect My Trims
Makes golden armor trims pacify piglins
Xaero's Minimap & World Map - Waystones Compatibility
Creates a Waypoint in Xaero's Minimap & World Map when activate a Waystone

Simple Datapacks
Simplifying the use of datapacks
Time Changer
Allows you to change the time completely clientside!
HoloSigns
Adds the ability to turn not render signs and add glass signs
Dynmap-Forge/Fabric
Dynamically updated web based maps for Minecraft servers running Forge or Fabric
Better Leaves
Adds bushy leaves without any mods. Make trees beautiful again.
Fresh Buckets
A Minecraft resource pack that adds 3D bucket models!
Reinforced Shulker Boxes
Fabric mod to add reinforced shulker boxes

I'm Fast
A mod to remove minecraft moved too quickly! and moved wrongly (speed limits)
Hit Feedback
Add blood and gore as hit feedback
Spells Gone Wrong (Iron's Spells N Spellbooks)
This mod allows you to take damage from your own cast spells and configure new spell features. Only works on spells added by Iron's Spells N Spellbooks [Configurable]
Tensura: Mysticism - Tensura: Reincarnated
Tensura: Mysticism is an add-on for Tensura: Reincarnated, featuring new races and skills to enhance your overall experience!
Display Case
Decorative block for beautiful storage of one item
Excalibur | Traveler's Backpack Support
Excalibur Support for Traveler's Backpack Mod
Lexicon
This mod adds a lexicon that explains almost every aspect of Minecraft ingame!
ExtraButtons
Adds additional button and switch-like blocks.
Insomnia Charm
PHANTOMS BE GONE!
LootBag Patches
Patching Some Bags
Create: Wrapped
Build your own holiday workshop, automate production, and surprise your friends with festive presents... or sneaky pranks!
Ancient Structures: Cultural buildings
Adds handcrafted structures from ancient civilizations (Mayan, Roman, Japanese, Germanic) with custom loot, mobs, and secrets.
Immersive Vehicles Trin Part Pack
Trin Part Pack - the full part collection
Crops Need Water
Crops need water, right? Forces crops to be waterlogged for them to grow.
Create Style Tom's Simple Storage
Tom's Simple Storage blocks and items remade in Create's aesthetics.
Water Balloon
Adds Water Balloons to Minecraft so you can have some summer fun with your friends!
More Functional Storage
Did you ever want... more functional storage? This Functional Storage addon adds breaker upgrades, placer upgrades and more