Quilt Mods for Minecraft 1.21
Browse 23 free Quilt mods for Minecraft 1.21 — popular picks include Data API, TNT Timer, Inventory Tabs.
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Data API
Tools to aid in datapack creation

TNT Timer
Adds a timer above tnt which displays the time until it explodes.
Inventory Tabs
Allows swapping to other in-world screens (blocks, entities, etc) via tabs. A fourth-generation rewrite of CakeWhip's InventoryTabs.
Custom Guns
A fully customizable datapack & mod for Minecraft 1.20.5+ that features custom guns that fully integrate with the surrounding world. Anyone can make their own gun with a straightforward command setup.
Break My Fall
Adds configurable features related to falling and fall damage like breaking snow on impact or taking fall damage in different water depths!
Piglin Conservatory v3.0
Adds a news structure to the Nether, The Piglin Conservatory, along with a new Obsidian Apple, Dragon Fruit, Toxic Mushrooms, Hoglins' Fossils, Corrupted Emerald and a New Music Discs!
Proximity
A simple Proximity Text chat mod/API
Health Enchantment
New enchantment that, when applied to armor, lets you get more health.
env.json
A small FabricMC library allowing to convert an `env.json` file into a Java Object. It is mostly used by Environment Driven Assets and Environment Driven Data.
Environment Driven Assets
Environment Driven Assets is a FabricMC mod which implements the env.json library in order to apply it on vanilla asset types.
Datamancer
The must have tool for datapack developers and command block enthusiasts! This mod will accelerate your development process.
Villager Job Tools
Client-only. Reroll any villager's trades (break/place their job site block) until wanted offers appear. Trades Finder, Auto Buy, Auto Sell. Keybinds: K = menu, R = start/stop.
Jump Enchantment
New enchantment that, when applied to boots, increases your jump height!
Fabridash Resurrected
A dash mod (and a library) for Fabric! Resurrected for newer (and older) versions of Minecraft!
Polyenergy
A dead-simple energy mod for Fabric.
Extra Entity Attributes
This mod adds new attributes, which serve as an API for other mods.
Juix Resources (mod version)
Mod enabling Juix datapacks' custom textures
Spell Lib
Adds a bunch of spells for other projects to use, with customization. Makes projects that want to add spells easier to make, with any casting system.
riamphur
A Minecraft mod that provides various utility items and code for other mods to build upon. Helper mod for getting souls from entities.
Kiwi Customization
a tool for creating game content from Excel/Google Sheets/YAML.
Sculk Vault
Adds some sculky features to make the ancient cities more enticing
Entity Block
Adds the Entity Block to make creating custom structures easier
Silver's Ray Cast Library | RCL
Yet another Ray Cast library! with even more functions?