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ST8 Converter
Convert ST8 files on your own machine instead of an upload form. reaConverter processes everything locally, with no size limits.
How to Convert .st8 Files in Bulk
1. Install reaConverter
2. Select ST8 Files
3. Start Conversion
Step by step
See It in Action
For quick and effortless ST8 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 ST8 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 June 29, 2026
Questions & Answers
ST8 files: Frequently Asked Questions
What are ST8 files?
An ST8 file most likely contains an astronomical image shot with an SBIG CCD camera, model ST-X. Such cameras specialize in astronomical imaging, but can be used in a few other scientific and industrial sectors as well, including medical imaging and color photometry. ST8 is included in a group of formats known as Santa Barbara Instruments Astronomical Images, together with ST7, ST6, ST5 and STX.
Can reaConverter open ST8 files?
reaConverter fully supports the ST8 file format – open, edit, and export ST8 files to any other popular file format with ease.
How do I change ST8 to another format?
reaConverter is a user-friendly tool for converting ST8 files. Once installed on your computer, it allows you to convert all your .st8 files at once with just a few clicks. You can even convert st8 images directly from Windows Explorer using the right-click menu — fast and convenient.
Can I convert ST8 online?
If you only want to convert a few ST8 files, you are welcome to try our free online ST8 converter.
How can I turn ST8 files on my computer to another format?
The best way to convert ST8 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 ST8.
How can I automate ST8 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 ST8 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 st8 converter.
What else can I do with reaConverter?
Convert medical imagesResize picturesConvert Gerber filesConvert RGB to CMYKConvert RAW files
What formats can I convert a ST8 file to?
Discover More
Beyond ST8 conversion
Convert .st8 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.
