1.21.3 mods

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

The fastest and most compatible rendering optimization mod for Minecraft. Now available for both NeoForge and Fabric!

Using async path-tracing to hide Block-/Entities that are not visible

Adds a mod menu to view the list of mods you have installed.

No-compromises game logic/server optimization mod

Memory usage optimizations

Speed up immediate mode rendering in Minecraft

Reduce resource usage while Minecraft is in the background or idle.

A working voice chat in Minecraft!

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

A Minecraft mod that provides realistic sound attenuation, reverberation, and absorption through blocks.

BetterF3 is a mod that replaces Minecraft's original debug HUD with a highly customizable, more human-readable HUD.

A Minecraft mod that improves the statistics screen and makes it more useful.

Open a LAN server to anyone, anywhere, anytime.

Reintroduces vanilla-like smooth lighting to non-full blocks (e.g. dirt paths and how they have dark shading when directly next to a full block) when using Sodium.

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

A mod for sharing game files like resource packs, shaders, saves and more between separate Minecraft instances.

Decorate, organize & display your books with colour! Works with Lecterns, Chiseled Bookshelves & Enchanting Tables!

Allows you to access every item in the bundle beyond the vanilla 12 item limit in 1.21.2+.