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STX Converter
Stop converting STX files one by one. reaConverter processes entire folders in one run, with the same settings applied throughout.
How to Convert .stx Files in Bulk
1. Install reaConverter
2. Select STX Files
3. Start Conversion
Step by step
See It in Action
For quick and effortless STX 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 STX 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 25, 2026
Questions & Answers
STX files: Frequently Asked Questions
What are STX files?
STX files represent RAW images created with SBIG CCD cameras. They are part of a group of formats known as Santa Barbara Instruments Astronomical Images, also including ST5, ST6, ST7 and ST8. Apart from astronomy, SBIG cameras can also be used in medical imaging, color photometry and a few other scientific and industrial sectors. All formats in the group are considered specialized and rare, so opening STX files might be possible only after conversion to more widely available extensions.
Can reaConverter open STX files?
reaConverter fully supports the STX file format – open, edit, and export STX files to any other popular file format with ease.
How do I change STX to another format?
reaConverter is a user-friendly tool for converting STX files. Once installed on your computer, it allows you to convert all your .stx files at once with just a few clicks. You can even convert stx images directly from Windows Explorer using the right-click menu — fast and convenient.
Can I convert STX online?
If you only want to convert a few STX files, you are welcome to try our free online STX converter.
How can I turn STX files on my computer to another format?
The best way to convert STX 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 STX.
How can I automate STX 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 STX 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 stx converter.
What else can I do with reaConverter?
Change format settingsCopy metadata (EXIF, IPTC)Convert PDF filesWatermark pictureConvert RAW photos
What formats can I convert a STX file to?
Discover More
Beyond STX conversion
Convert .stx 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.
