Fabric Mods for Minecraft 1.21
Browse 24,896 free Fabric mods for Minecraft 1.21 — popular picks include Modern Industrialization, Ad Astra: Giselle Addon, Time in a Bottle.
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Modern Industrialization
Modern Industrialization is a standalone tech mod, where the ultimate objective is total automation.
Ad Astra: Giselle Addon
Add things be more convenience, compatibility for Ad Astra!
Time in a Bottle
A fork of Time in a bottle standalone
When Dungeons Arise - Fabric!
Adds various elegant -and likely hostile- roguelike dungeons and structures that generate on your worlds!
Mindful Darkness
Turning all the lights off! Automatic dark mode for guis; as configurable as possible.
Ash API
An abstraction layer between Fabric, Forge, and Quilt's APIs.
Pollution of the Realms
Adds environmental pollution mechanics with real consequences for the world around you
MixinTrace
Adds a list of mixins in the stack trace to crash reports
CraterLib
A library mod for First Dark Development and HypherionSA's mods
YUNG's Better Ocean Monuments (Fabric)
A complete redesign of Minecraft's ocean monuments!
Shield Expansion
Adds tiers and parrying to shields for more interesting combat!
Universal Grid
Adds a Universal Grid for Refined Storage
Useful Backpacks
Need more slots? Try these backpacks
Additional Lanterns
Additional Lanterns adds many new lanterns with different colors and materials!
Distant Horizons: A Level of Detail mod
Massively increase render distance without harming performance.
Lootr (Fabric)
A mod that makes it so nobody misses out on Loot! All loot chests are instanced per player and visually unique.
Accelerated Decay
Speeds up the leaf decaying process
Grass Overhaul (Sod)
More grass approaches. Patches, slabs, stairs, you name it. Neo/Forge/Fabric/QuiltMC
Stylish Effects
Status effect display overhaul: Display them in any menu! And way more compact.
Create: New Age
Create: New Age is an addon for the Create mod that adds integration with electricity.
playerAnimator
animate the player
NetherEx
NetherEx is a nether content mod.
Configured Defaults
Allows for providing defaults for files absent in .minecraft like configs. A quintessential modpack utility.

Supplementaries
Vanilla+ additions: Jars, signposts, faucets, weather vanes spring launchers, sconces, planters, lights, decoration and automation
More Axolotl Variants Mod
Adds more axolotl variants!
Tesseract
Tesseract allows you to transport Items, Fluid and Energy
Hearths
A handful of additions to vanilla Nether biomes

Enhanced Block Entities
Reduce block entity FPS lag with almost no compromises, and improve their visuals

Euphoria Patches
Euphoria Patches is an add-on for Complementary Shaders, extending it with more optional features and settings.
Quests Kill Task Tweaks
Improves kill contribution tracking for FTB Quests
YUNG's Better Nether Fortresses (Fabric)
A complete redesign of Minecraft's Nether fortresses!
Icarus
Adds a bunch of colourful and unique wings that can be worn in the Trinkets/Curios Cape slot.
Create: Bells & Whistles
Utilities, adornments and decorations for the aesthetically concerned engineer
Animal Feeding Trough [Fabric | Forge | Quilt | NeoForge]
Mobs self feed with feeding trough

Handcrafted
Make your house a home!
More Mob Variants
Adds new variants to existing mobs.