Useful

A library all about color! Provides lots of color-related functionality for dependent mods.

Keep the Resource Pack loaded even after leaving the server.

Adds particles to more interactions in the game, such as placing blocks or stripping logs. Fully configurable and client side!

Adds an elytra HUD for maintaining optimal pitch.

Fancy Effekseer particles, in the Minecraft world!

Mod for visualizing 3D shapes like cubes and spheres in Minecraft to aid in building.

An extremely radical and experimental optimization for Minecraft server performances.

An easy to use library for rendering content

This mod brings back the beacon from the 1.4.2 snapshot 12w36a. This mod also adds different effects that can be applied to the beacon by placing a block next to it.

Enables servers to render debug shapes on the client.

Use the hidden debug renderers from vanilla!