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SUL Converter
Need SUL files in a different format? reaConverter batch converts to JPG, PNG, PDF, TIFF and more.
How to Convert .sul Files in Bulk
1. Install reaConverter
2. Select SUL Files
3. Start Conversion
Step by step
See It in Action
For quick and effortless SUL 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 SUL 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 27, 2026
Questions & Answers
SUL files: Frequently Asked Questions
What are SUL files?
SUL is an old and obsolete image format file associated with GFA RayTrace — a program designed for Atari ST computers. The software was released in the late 1980s and allowed users to operate with 3D objects in an incipient stage, usually implying a lot of time for required calculations. SUL files are now considered rare, so opening them probably requires conversion.
Can reaConverter open SUL files?
reaConverter fully supports the SUL file format – open, edit, and export SUL files to any other popular file format with ease.
How do I change SUL to another format?
reaConverter is a user-friendly tool for converting SUL files. Once installed on your computer, it allows you to convert all your .sul files at once with just a few clicks. You can even convert sul images directly from Windows Explorer using the right-click menu — fast and convenient.
Can I convert SUL online?
If you only want to convert a few SUL files, you are welcome to try our free online SUL converter.
How can I turn SUL files on my computer to another format?
The best way to convert SUL 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 SUL.
How can I automate SUL 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 SUL 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 sul converter.
What else can I do with reaConverter?
Convert vector filesChange image DPIConvert whole-slide imagesResize photoTrace images to vector
What formats can I convert a SUL file to?
Discover More
Beyond SUL conversion
Convert .sul 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.
