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Fabric Mods for Minecraft 1.21

Browse 17 free Fabric mods for Minecraft 1.21 — popular picks include Despawn Tweaks, Mob AI Tweaks, MojoLauncher FPS | Butterium Mobile.

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Despawn Tweaks
1.20.1fabric

Despawn Tweaks

Optimization mod that fixes cases where mobs will be prevented from despawning.

18Mdownloads
Mob AI Tweaks
1.21.11fabric

Mob AI Tweaks

Tweaks certain mob AIs, major or minor. Reworks the Wither and Ender Dragon boss fights!

1.4Mdownloads
MojoLauncher FPS | Butterium Mobile
1.21.8fabric

MojoLauncher FPS | Butterium Mobile

Optimization/FPS and quality of life. A client-like performance pack with custom menus/in-game HUD - now for mobile phones

51kdownloads
Essential PVP Utilities
1.21.11fabric

Essential PVP Utilities

This mod contains many features to give you an advantage when fighting. Contains Fast Block Placements, Wind Charge Optimizer, [Beta] Crystal Optimizer, Faster Strafing and much more.

11kdownloads
FlareFryze PvP+FPS Modpack
1.21.4fabric

FlareFryze PvP+FPS Modpack

A clean PvP-focused modpack with performance optimizations and essential utilities for competitive gameplay (1.21+).

9.4kdownloads
Old school mc+
1.21fabric

Old school mc+

"Old School MC+" is a modpack combining classic Minecraft with the alpha and beta era. It features elements like non-stacking food, a hunger bar, and mobs dropping items from the old days. It introduces new features such as a minimap, and shaders.

2.0kdownloads
Ka1denz Pvp Optimization Tweaks
1.21.11fabric

Ka1denz Pvp Optimization Tweaks

The ultimate 1.21.11 PvP suite: small culling for FPS, persistent totem counters, and quality-of-life tweaks for competitive play.

1.8kdownloads
Simply Modded
1.21.1fabric

Simply Modded

Adventure | Dungeons | Overhauled Structures | Additional Biomes | Additional Dimension | Mob and Entity Tweaks |

1.4kdownloads
AngelSkar Vanilla+
1.21fabric

AngelSkar Vanilla+

This is a modpack created to optimize the vanilla experience without adding any new blocks, mobs or anything, simply optimizing the game and adding simple Qol mods like Journeymap or Mousetweaks

1.4kdownloads
PerfPlusMob
1.21.4fabric

PerfPlusMob

PerfPlusMob brings performance boosts and essential QoL tweaks to Minecraft for Pojavlauncher players.

1.2kdownloads
Basic Reach
1.21.10fabric

Basic Reach

Basic Reach is a compact singleplayer-focused utility mod that adds a straightforward Reach enchantment (I–II) Reach increases both your melee hit distance and block interaction range letting you poke mobs from afar.

985downloads
Moepack
1.21.10fabric

Moepack

Lightweight modpack with minimap, enhanced mob AI, and high performance

373downloads
PP SMP
1.21.4fabric

PP SMP

Official modpack for PP SMP, a private vanilla 1.21.4 server consisting of 2 main teams competing against each other. Contains shaders, optimizations, and quality of life mods.

290downloads
Ali's PvP (Phone)
1.21.11fabric

Ali's PvP (Phone)

Fully optimized for Android with, performance tweaks, and seamless mobile PvP gameplay.

132downloads
Gavin's Extensible Client Mod (1.21.5, 1.20.1) – Utility With X-Ray, ESP, And Combat Tools
1.21.5fabric

Gavin's Extensible Client Mod (1.21.5, 1.20.1) – Utility With X-Ray, ESP, And Combat Tools

Gavin's Extensible Client Mod is a powerful client-side utility mod packed with performance tweaks, visual aids, and automation tools for Minecraft. It includes features like X-Ray, ESP (for mobs, items, chests), Kill Aura, NoClip, and more. Features: X-Ray, Full Bright, and multiple ESP types (mob, item, chest, block) Combat tools: Kill Aura, Auto Crit, Wall […]

Tick Tweaks Mod (1.21.5, 1.20.1) – Smarter Tick Management
1.21.5fabric

Tick Tweaks Mod (1.21.5, 1.20.1) – Smarter Tick Management

Tick Tweaks Mod is a performance mod that dynamically adjusts the tick rates of entities and block entities based on current server TPS (ticks per second). Features: Dynamically adjusts tick rates for item entities, block entities, and mobs. Lower server TPS = slower tick rates, reducing lag. Fully server-side; no client installation needed. Includes additional […]

Despawn Tweaks Mod (1.21.1, 1.20.1) – Smarter Despawning
1.21.1fabric

Despawn Tweaks Mod (1.21.1, 1.20.1) – Smarter Despawning

Despawn Tweaks Mod fixes cases where mobs will be prevented from despawning. Features: Allows mobs that pick up items or gear to despawn naturally. Drops held loot properly when mobs despawn. Allows mobs that spawn from spawners to bypass this rule, optionally only in specific structures. Improves performance on both dedicated servers and in singleplayer. […]