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BIL Converter
Batch convert BIL files with the same settings across a whole project, from a handful of layers to an archive of tiles.
How to Convert .bil Files in Bulk
1. Install reaConverter
2. Select BIL Files
3. Start Conversion
Step by step
See It in Action
For quick and effortless BIL file handling on your PC, reaConverter offers powerful conversion tools with batch processing. Best of all, it works entirely offline — ensuring your sensitive data never leaves your computer.
GIS Toolkit
Do more with your GIS data
Need BIL data as something anyone can open? reaConverter renders imagery and elevation grids into standard images and documents without QGIS or ArcGIS, and works through whole folders in one pass.
- Render imagery, elevation grids and scanned charts to TIFF, PNG, JPG or PDF
- Resize, crop and set DPI on the output in the same run
- Bring tiles, scenes and grids from many sources into one consistent format
- Convert incoming survey and field data automatically with Watch Folders
- Script GIS conversions from the command line for pipelines and scheduled jobs
- Keep cadastral, utility and client data on your PC: nothing is uploaded
User reviews
From those who tried it
Average User Rating:Last updated on July 28, 2026
Questions & Answers
BIL files: Frequently Asked Questions
What are BIL files?
BIL (ESRI Band Interleaved by Line) is a raw raster format for multi-band geospatial data, in which the first row of every spectral band is written in sequence, followed by the second row of every band, and so on. This layout is a compromise between the BSQ and BIP structures and suits row-by-row processing of imagery and terrain datasets. The file is a flat binary matrix of integer, unsigned integer, or floating-point values in big-endian or little-endian order, described by the mandatory text-based .hdr file, which supplies the row, column, and band counts needed to rebuild an image. A single-band BIL, typically a DEM, becomes a grayscale or color-ramped picture, a three-band file maps directly to RGB, and values above 8 bits are rescaled for PNG or JPEG output. It is read by ArcGIS, QGIS, Global Mapper, and ENVI, and conversion to Cloud Optimized GeoTIFF (COG) embeds the georeferencing that BIL keeps in sidecar files.
Can reaConverter open BIL files?
reaConverter fully supports the BIL file format – open, edit, and export BIL files to any other popular file format with ease.
Do I need QGIS or ArcGIS to convert BIL files?
No. reaConverter reads BIL files on its own, so the conversion needs no GIS installation and no licence. It handles whole folders at once, which suits survey archives, tile sets and data deliveries that have to reach people working in other software.
How do I change BIL to another format?
reaConverter is a user-friendly tool for converting BIL files. Once installed on your computer, it allows you to convert all your .bil files at once with just a few clicks. You can even convert bil images directly from Windows Explorer using the right-click menu — fast and convenient.
Why choose offline conversion with reaConverter?
Keep your sensitive data 100% private with offline processing that never exposes files to cloud risks. Our software meets strict compliance standards (GDPR, HIPAA, CCPA) while handling confidential documents for legal, healthcare and financial sectors.
Can I convert BIL online?
If you only want to convert a few BIL files, you are welcome to try our free online BIL converter.
How can I turn BIL files on my computer to another format?
The best way to convert BIL files on your PC is to get a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from BIL.
How can I automate BIL files conversion?
reaConverter supports all the essential automation features, such as right-click сonversion and Watch Folders, for the most efficient automated file conversion in any software of its kind.
Can I convert BIL files using scripts or the command-line interface?
reaConverter provides full access to all its features from the Windows command-line shell, including the command-line bil converter.
What else can I do with reaConverter?
Trace images to vectorChange bit depthConvert vector filesChange picture DPIConvert GIS files
What formats can I convert a BIL file to?
Discover More
Beyond BIL conversion
Convert .bil files in batches of any size, with editing and processing applied along the way. The same tool also handles 800+ other formats, including CAD, medical imaging, and GIS.
