Minecraft Flatworld Generator

Create Minecraft flat world presets with custom block layers, biome selection, and copyable server.properties output.

Biome

World summary

Layers3

Height4

Layers

Layers are ordered from bottom to top, the same way Minecraft flat presets are written.

Height

Layer 1 block

Height

Layer 2 block

Height

Layer 3 block

Preview

A quick stack preview of the generated flat world layers.

Grass Block1

Dirt2

Bedrock1

Top layer: Grass Block4 blocks tall

Generated output

Copy the preset into your server setup, or use the JSON-style settings for versions/tools that expect it.

server.properties

Useful when editing server.properties directly.

level-type=minecraft:flat
generator-settings=minecraft:bedrock,2*minecraft:dirt,minecraft:grass_block;minecraft:plains

Flat preset

Compact layer;biome preset string.

minecraft:bedrock,2*minecraft:dirt,minecraft:grass_block;minecraft:plains

JSON settings

Readable generator settings with layers and biome.

{
  "layers": [
    {
      "block": "minecraft:bedrock",
      "height": 1
    },
    {
      "block": "minecraft:dirt",
      "height": 2
    },
    {
      "block": "minecraft:grass_block",
      "height": 1
    }
  ],
  "biome": "minecraft:plains"
}

For servers, set level-type=minecraft:flat. Flat world generation details can vary between Minecraft versions, so keep the preset with your server version notes.