Tileset Autotile Viewer

Paint a small map, see which 4-bit (16-tile) or 8-bit (47-tile) autotile index each cell resolves to, and export the index table as JSON.

Map Editor

Click / drag to paint. Fill = solid block, Erase = empty. Invert flips every cell. The map is a boolean grid (1 = tile present, 0 = empty).
Filled cells: 0 Distinct indices used: 0

Resolved Autotile Indices 4-bit

Each cell shows the resolved autotile index (0–15 for 4-bit, 0–46 for 8-bit). Hover a cell to see its bitmask. Color is deterministic per index.
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