Tile Viewer
Variable-entry (0x0)
MVT vector tiles served via QBTiles index + Range Request. Administrative boundaries of South Korea.
Population Grid
Fixed columnar (0x3)
931K cells in 1.75 MB. Korea 100m population grid with 3 values per cell at 1.97 Byte/cell.
Range Request
Fixed row (0x1)
Split-screen comparison: QBTiles cell-level vs COG block-level Range Request on WorldPop 1km global population.
File Viewer
Drag & drop any .qbt
Drop a .qbt or .qbt.gz file to inspect its contents, grid, and cell values. Supports all three modes.