1File Selection
Click to select a FIT or CSV file or drag and drop
Supports .fit and .csv files up to 50MB — or an exported settings .json / .zip bundle
Elevation Source
AWS Terrain Tiles are downloaded automatically to provide accurate elevation data.
Supported DEM Formats & Help
Supported Formats:
- GeoTIFF (.tif, .tiff) - uncompressed, LZW, or Deflate compression
- World files (.tfw, .tifw) for coordinate information
- Projection files (.prj) for coordinate system
- Data types: 8-bit, 16-bit, 32-bit integer or float
Not Supported (requires conversion):
- LERC, JPEG2000, or WebP compression
- HFA (.img), ASCII Grid (.asc), HGT (SRTM) formats
gdal_translate -co COMPRESS=NONE input.tif output.tif
Click to select DEM file(s) or drag and drop
Select .tif + optional .tfw (world) + .prj (projection) files
Processing FIT file...