BiomePainter is a runtime biome editing tool that lets you change biomes in existing worlds without regenerating terrain.

It allows you to replace biomes in an area, store those changes as persistent regions, and reapply them later if needed. Regions are saved automatically and survive restarts, making it easier to manage large-scale biome projects without having to repeat the same work.

The mod includes commands for painting, converting, inspecting, deleting, and restoring biome regions, along with undo support because people make mistakes and sometimes turn half the world into a desert by accident.

Changes are synchronized between the server and connected players, and a lightweight API is available for developers who want to build on top of BiomePainter.

Commands

Paint a biome region

Replace one biome with another around your current position and save it as a persistent region.

/biomepaint start <from> <to> <radius>

Example:

/biomepaint start minecraft:plains minecraft:desert 128

List available biomes

Displays all registered biome IDs.

/biomepaint list

View nearby biome information

Shows nearby biome samples.

/biomepaint nearby

View current region

Displays information about the region you are currently inside.

/biomepaint current

Repaint all regions

Reapplies all saved biome regions.

/biomepaint repaintall

Convert all regions

Converts all saved regions to a new biome.

/biomepaint convertall <to> <radius>

Undo changes

Undo the most recently created region.

/biomepaint undo

Undo a specific region.

/biomepaint undo <id>

Delete regions

Delete the region you are currently standing in.

/biomepaint delete here

List all saved regions with clickable delete actions.

/biomepaint delete list

Delete a specific region.

/biomepaint delete id <id>

Help

Display the built-in help menu.

/biomepaint help

Biome Painter