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BW Converter
Convert BW files right in your browser, with no upload and no size limit. reaConverter for Windows adds 700+ file formats and batch mode.
How to Convert .bw Files in Bulk
1. Install reaConverter
2. Select BW Files
3. Start Conversion
Step by step
See It in Action
For quick and effortless BW 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.
Extra Tools
Do more with your files
Converting BW files for use in a larger project? reaConverter offers many ways to process files, so you can customize them according to your requirements.
Our range of editing options includes auto-processing options such as auto-rotate, auto-crop, watermarking and more. Change Color Space, copy Metadata, set DPI, manage ICC Profile, control Bit Depth.
User reviews
From those who tried it
Average User Rating:Last updated on July 28, 2026
Questions & Answers
BW files: Frequently Asked Questions
What are BW files?
The BW format represents the black-and-white version of SGI (Silicon Graphics Image), a raster format created using Silicon Graphics workstation. Similar formats include RGB and RGBA. SGI and its related file extensions were first developed by Paul Haeberli and wereinitially released in mid-1990s. They are currently considered obsolete and difficult to open with regular image viewers.
Can reaConverter open BW files?
reaConverter fully supports the BW file format – open, edit, and export BW files to any other popular file format with ease.
How do I change BW to another format?
reaConverter is a user-friendly tool for converting BW files. Once installed on your computer, it allows you to convert all your .bw files at once with just a few clicks. You can even convert bw images directly from Windows Explorer using the right-click menu — fast and convenient.
Can I convert BW online?
If you only want to convert a few BW files, you are welcome to try our free online BW converter.
How can I turn BW files on my computer to another format?
The best way to convert BW 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 BW.
How can I automate BW 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 BW 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 bw converter.
What else can I do with reaConverter?
Convert DICOM imagesCrop photoConvert CAD formatsSet file dateConvert vector images
What formats can I convert a BW file to?
Discover More
Beyond BW conversion
Convert .bw files in batches of any size, with editing and processing applied along the way. The same tool also handles 700+ other formats, including CAD, medical imaging, and GIS.
