Fabric Mods for Minecraft 1.21
Browse 33 free Fabric mods for Minecraft 1.21 — popular picks include GottschCore, DungeonZ, Ledger Databases.
Updated daily
GottschCore
This is a new base library of code that is used in all of my other mods.
DungeonZ
Base mod to add new dungeons with one default dungeon
Ledger Databases
Adds support for additional database types to Ledger
Unnamed Framework
The base framework for my datapacks, providing an API of common functions and easy compatibility between modules.
Timefall Coin (Themed Currency Base)
This mod adds the Timefall Coin and Timefall Coin Pile, used in the TSMP, but is a base that can be changed to fit a Modpack's Theme
More Stick Variants (MStV)
Sticks for every kind of wood. A base mod for other Variant Mods using Sticks as crafting ingredients.
Villager Fletcher House
Adds a villager fletcher house to the plains biome
The Mighty Architectury
Architectury port of The Mighty Architect. Design elaborate buildings within a minute!
Virtual Library
Virtual Library is a collection and api for building mods. it comes with mixins, a shader plugin, a keybind library, a config loader, a command library, an in memory plugin loader and a rendering library.
Keystone Expansion Pufferfish's Skills
MMO-style skill tree expansion for Puffish Skills, adding new progression categories like Combat, Mining, Exploration, Farming, Crafting, Building, Magic and Taming.
CobbleLibs
CobbleLibs es una librería base para mods de Minecraft (Fabric) diseñada para facilitar el desarrollo de sistemas avanzados
FrogiLib
A small collection of blocks for my building needs
Twigonometry
A lib for building trees in-code
More Variants Core
Base mod for More Variants Add-ons
Fabric Database H2
Fabric database module for H2.
Cauldron API
this mod is an api that allows mod creators to create multiple type of recipe that base on cauldron!
Gelatin UI
A library that provides easy dynamic UI building tools.
Give me More Slab (GMS)
GMS is a simple and practical Minecraft mod that expands building possibilities by adding slabs for many more blocks.
Packdev Toolkit
A collection of developer tools for building modpacks and datapacks. Pull textures/models out of resource packs, dump lang entries, search datapacks, and copy item IDs: all without leaving the game!
BBS Addon Engine
The BBS Addon Engine is an essential compatibility layer that allows you to run BBS CML addons directly on the base BBS mod and BBS FS.
Statsreader (Bedwars GommeHD.net)
StatsReader shows BedWars player stats directly in the TAB list on GommeHD.net using a community-updated database that syncs via /stats.

Slashbridge
serverside utility mod aiming to add in minecraft commands that I think the base game lacks, bridging datapack and mod function.
Networked
[BETA] A simple library for building cable-like networks server-side.
Mansion D RPC
Easy to configure to make your Discord Rich Presence better.
Jake's Economy
A dynamic player-driven economy mod with a live market, coin currency, real-time price trends, and an Auction House.
SecondDawnRP
SecondDawnRP is a sci-fi roleplay framework mod for Minecraft that adds advanced building systems, functional ship components, and interactive tools to support immersive crew-based starship gameplay and custom events.
HueFinder
HueFinder adds a clean in-game menu to browse and search color palettes for creative building.
BetterSlabPlacement
Allows placing full blocks on top of bottom slabs, greatly improves building flexibility. Requires Fabric API.
Cobblemon Tim Core Mod (1.21.1, 1.21) – Essential Library For Pokemon Modding
Cobblemon Tim Core Mod serves as a shared codebase to reduce code duplication across the developer's Cobblemon-related mods, providing common utilities, fixes, and extensions. It's essential for modpacks using multiple "Tim" Cobblemon addons, ensuring consistent behavior and performance. Features: Base classes for mod structure and config handling. Simplified config creation with overridable settings. Tools for […]
Tweakeroo Update Port Mod (1.21.11, 1.21.1) – More Control, Better Building
Tweakeroo Update Port Mod is a versatile client-side mod packed with quality-of-life tweaks. From Accurate Block Placement to Free Camera and Gamma Override, this mod gives you fine-grained control over your gameplay. Features: Popular tweaks include: Hand Restock. Flexible/Accurate Block Placement. Fast Click (left/right) Gamma Override (see in the dark) Free Camera mode. Fully client-side; […]
Dark Matter Mod (1.21.1, 1.20.1) – Provides a Base Framework Required By Other Modules
Dark Matter Mod offers a collection of miscellaneous tools and patches. It provides developers and potentially advanced users such as enum extension capabilities, content creation tools, and access to unsafe hacks. It is structured into several modules, each addressing specific areas like content registration, crash handling, on-screen particle effects, and recipe book enhancements. Features: Provides […]
Structurized Reborn Mod (1.21.1, 1.20.1) – Allows Adding Custom Structures
Structurized Reborn lets you add custom structures to villages and other jigsaw pools in Minecraft. This library provides tools to register new buildings, set their spawn weights, and control how they fit into the terrain. You can also apply generation processors to add details like random mossy cobblestone. Features: Adds custom structures to existing village […]
Adventure Item Stats
Gaussian variation on base stats of naturally-spawned items — every found sword and armor piece rolls a little different.