Data / Resource Pack Dev Mods

Adds a full screen world map which shows you what you have explored in the world. Works great together with Xaero's Minimap.

Optimises worldgen performance for a better gameplay experience.

Library mod with new configurability and compatibility enhancements for worldgen

Take full control over your vanilla game

A Minecraft Map Editor... that runs in-game! With selections, schematics, copy and paste, brushes, and scripting. Use it in creative, or use it temporarily in survival.

The all-in-one tool for editing Minecraft Worlds.

Allows you to preview a map / seed in the new world screen

Adds suggestions for NBT tags in commands

Allows simple control over water, nether and terrain fog.

WorldEdit CUI is a graphical user interface for WorldEdit, designed to assist in using WorldEdit and prevent accidental errors.

Enables resourcepacks to be able to replace sodium's shaders, similar to resourcepacks being able to replace vanilla's core shaders.

Paste, share & analyse your Minecraft logs

Utility mod to add more density functions for world generation datapacks.

A mod which substantially improves Minecraft's data driven world generation error detection, reporting, and recovery mechanisms.

A mod that aids in the development of world generation data packs and mods. Allows reloading worldgen data packs in-game and resetting chunks. Colors jigsaw blocks by name and target.

Shows components of ItemStacks in their tooltips