Minecraft Builder How it works Free tier Open the app

Describe it. Claude builds it. Then Claude checks its own work.

Text to Minecraft structure: Claude writes the build as a script, renders it in your browser, looks at screenshots of the render, fixes what is off and exports a .schem or .litematic for WorldEdit and Litematica.

No account, nothing to install. Java 1.21.11 blocks and textures.

  • Premium builds

    State-of-the-art AI with your own instructions: style, palette, scale, what to keep and what to change.

  • Easy preview

    Fly around the render, look from every angle and step through it layer by layer before you place a block.

  • Easy build

    Full material list and .schem or .litematic export, ready for WorldEdit and Litematica.

A pagoda garden, built from one prompt

These are the exact three views Claude receives after every build round, so it sees what you see.

Elevated render of a five-storey Japanese pagoda in a temple garden, built in Minecraft blocks
1 · elevated view from the south-west
Front elevation of the pagoda render, torii gate in front
2 · front elevation
Side elevation of the pagoda render with the pond and cherry trees
3 · side elevation

How it works

  1. You describe the structure, or attach a reference image.
  2. Claude writes a builder-DSL script, the browser renders it with vanilla textures, Claude reviews the views and iterates.
  3. Export the result as a .schem (WorldEdit) or .litematic (Litematica) and paste it into your world.

Free tier

Up to 30 build rounds or $1.00 of model usage per day and IP address, on Claude Opus 5 or Sonnet 5. Three or four rounds make a typical build. Runs on the site owner's API key: there is no key to paste.