How to open a .BIL file online
From file to map in seconds.
Open your .BIL file
Drag it onto the box or click to choose it from your device. It opens on your computer.
See it on the map
Points, lines and areas from your .BIL file appear on an interactive map. Click any feature to read its details.
Read the stats
Check distance, elevation gain and loss, the bounding box and a height profile linked to the map.
What is a .BIL file?
The common language of GPS devices.
A BIL file is a raw binary raster image in Band Interleaved by Line format, used in GIS and remote sensing for satellite imagery, elevation data, and land cover maps. Open it with QGIS (free) or ArcGIS Pro. The file always comes paired with a companion .hdr header - keep both files together or the BIL cannot be read.
Programs that open .BIL files
| Full name | Band Interleaved by Line Raster Image |
|---|---|
| Developer | ESRI (popularized format); origin in remote sensing industry |
| First released | circa 1980s (remote sensing industry); popularized by ESRI ArcView in early 1990s |
| Category | Maps & GIS |
| MIME type | application/octet-stream |
Related viewers
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Is my .BIL file uploaded anywhere?
No. Your .BIL file is read by your browser and never sent to us. Only the background map tiles are loaded from OpenStreetMap, which sees which map area you're looking at, not your data.
How is the elevation gain calculated?
We add up every climb between track points, ignoring tiny wiggles of less than 3 metres that come from GPS noise. That's close to what Strava and Garmin report; barometric devices may differ slightly.
How do I open a Shapefile?
A Shapefile is several files. Drop the whole .zip, or select the .shp, .dbf and .prj files together. With only the .shp you'll see the shapes but no attributes.
Can I convert GPX to KML or GeoJSON?
Use Export GeoJSON to save everything you see. GPX ↔ KML conversion is part of our upcoming converter.
My CSV has coordinates. Will it work?
Yes, if it has columns named like lat/latitude/y and lon/lng/longitude/x. Every row becomes a point with the other columns as properties.
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