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Tools / Minecraft

Minecraft Flat World Generator

Stack the superflat layers you want, pick a biome, and copy both the in-game preset string and the exact server.properties lines (generator-settings JSON + level-type=minecraft:flat) to run it on your server. Layers go bottom to top. Runs in your browser.

Presets:
  Total height: 0 blocks 

    
  

  

    
    

    
    
  


  

    
How to apply it to your server

    
    
      
  1. Build your layers bottom to top - bedrock usually first. Use a preset as a starting point, then tweak blocks and thickness.
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  2. In server.properties, set level-type=minecraft:flat and paste the generator-settings line above.
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  3. Generation only applies to a new world. Stop the server, move or delete the world folder, then restart so it regenerates flat.
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On 1.16+ the generator-settings JSON is the authoritative form; the comma preset string is what you paste into the in-game Superflat Customize box for single-player or a quick copy. Both describe the same stack.


    
Running a creative, redstone, or minigame server?

    
Superflat worlds are the standard canvas for redstone, building practice, and minigames - and those are multiplayer by nature. The tool is free and needs no account; if you need somewhere to host it, Supercraft is one option among many.