Design editor ​

Write your own design as JSON. Completion (Ctrl+Space) and hover help come from design.schema.json; the diagnostics come from the package's own validation, so the editor reports exactly what validateDesign, toDesignText and the CLI report. Generate stays disabled while there are problems. The text is kept in your browser's local storage.

Got a design file from DungeonMaker 2.05? Import legacy text turns it into JSON. Downloads include design.json, and the copied CLI command reads it from the current directory.