Quilt Mods for Minecraft 1.21
Browse 37 free Quilt mods for Minecraft 1.21 — popular picks include Cardinal Components API, Alloy Forgery, BoxLib.
Updated daily
Cardinal Components API
API for data-driven content
Alloy Forgery
Forge some alloys
BoxLib
A client-side library mod with tons of features to do all the heavy lifting for all client-side mod developers.
Factory API
An API that supports different mod loaders and is the basis of mods like Factocrafty
Craft Slabs Back into Blocks [Fabric/Forge/NeoForge]
A fully configurable mod that lets you craft slabs back into blocks
Smelting Sand in a Blast Furnace [Fabric/Forge/NeoForge]
As the name says
Cooldown Coordinator
Library to help mods coordinate item movement cooldowns
Smelt All Stone Blocks in Blast Furnaces [Fabric/Forge/NeoForge]
Blast all types of stone including Netherrack or Quartz, fully configurable
Blasting Raw Metal Blocks [Fabric/Forge/NeoForge]
Blast whole raw metal blocks, fully configurable
WunderLib: New Dawn
An unofficially maintained continuation of WunderLib for Fabric and NeoForge, providing automated configuration screens, grid-based UI layouts, simplified networking, and other utilities used by BetterX mods
Better Crafting [Fabric/Forge/NeoForge]
This mod changes and adds few recipes

TNT Timer
Adds a timer above tnt which displays the time until it explodes.
Craft 6 Stairs Instead of 4 [Fabric/Forge/NeoForge]
makes it so that you get the same amount of stairs from crafting as you get from the stonecutter
BankSystem
BankSystem is a Minecraft mod that brings money in to the game. Used as a dependency for other mods
Lib Multipart
A Multipart API for fabric, used by SimplePipes and (soon) buildcraft.
Lib Network Stack
Pure library mod: used by other mods (namely LibMultiPart and thus SimplePipes)
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!
Craftable Totem of undying tweak
This is mod witch adds craft to Totem of undying
Luish's Guns Crafting Add-on
Add-on for Luish's Guns that adds crafting recipes
SQLib
The easiest way to store data for all your minecraft needs!
craftable Sponge Tweak
Allows players to craft sponges instead of only finding them in ocean monuments. Mod
Nexa AI Chat
The Mod/Plugin Introduces Nexa Ai Agent into the Minecraft. Your sidekick in minecraft! Accessible from the chat. You can talk to it anytime, even ask it to do actions. it has all context of you and environment so when it talks, you better listen.

Nixienaut
A common code Library.
Craftable Hourse iteams
this mod allows to craft saddle and armors for horse
Easy Model Entities
Turn Blockbench models into simple Minecraft entities without writing Java code.
Virtual Motion Capture for Minecraft
Gives your Minecraft client the power to send VMC protocol data for vtuber models.
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.
Quill Notifications
A small Library mod to handle sending notifications to players both online and offline with style!
smartbuildLib
Library for Improved construction system (Now supports Create Aero)
Biscuit!
A simple API for working with 1.20.5 cookies and transfers in an easy and secure way!
cyanspeech
Text-to-speech with SimpleVoiceChat!
Aeonis
Take control. Command anything. Master the game.
Polyenergy
A dead-simple energy mod for Fabric.
Tom's Loot
This modpack adds a variety of loot tables and can be used by other mod developers for structure mods and other mods with loot tables as a basis.
AI Crafter
Minecraft AI Assistant brings the power of Google Gemini AI directly into your Minecraft world! Get instant help, answers, and even execute commands through natural language all powered by cutting-edge AI technology.
Sculk Vault
Adds some sculky features to make the ancient cities more enticing