1.21 Creation Utilities

Lightweight and modular API providing common hooks and intercompatibility measures utilized by mods using the Fabric toolchain.

Emissive, Random & Custom texture support for entities in resourcepacks just like Optifine but for Fabric

EMF is an, OptiFine format, Custom Entity Model replacement mod available for Fabric and Forge.

Adds resourcepack features and a GUI to configure OptiFine alternatives more conveniently.

Customize Map Color, Block Colors, Colormaps and Block Sounds, Biome Colors, Dye Colors. Supports Optifine format. For Resource Packs

Take full control over your vanilla game

Formations adds utilities for structure datapacks!

Advanced Villager configuration with data driven trades

Allows for entity sound variation using OptiFine format property rules

Extra Features for Carpet Mod

This mod allows Minecraft's data commands (/data, /execute store, etc.) to modify player data

Tools to aid in datapack creation

Fabric mod that allows resource pack creators to overwrite the models for held items just like the spyglass and trident

Data driven Items, Blocks, Decorations and Mobs for Fabric based servers. No client mods required!

Pose and modify your armor stand with ease!

Adds copy button for the "/data get" command output

Create custom portals using CustomPortalApi with datapacks

Allows data/resource packs and mods to modify parts of json files instead of completely replacing them.

Library mod providing data driven in-world crafting with support for data generation.

Data driven entity model library

This mod adds a simple /uuid command that shows the UUID of any entity currently loaded, and allows you to copy the UUID string or the NBT data representation of the UUID.

Define what happens when an anvil lands on blocks or entities. Data driven.

Client-Side mod allowing you to adjust arm positions in item JSON models. Ported to 1.21