STX Converter

Our fast and easy STX file converter will help you avoid spending countless hours trying to figure out how to convert multiple .stx files at once.

Download
reaConverter
Convert
STX Files
Online

How to Convert .stx Files in Bulk

1. Install reaConverter

Download reliable STX conversion software to convert multiple .stx files and folders in one go.
reaConverter logo
Install reaConverter

2. Select STX Files

Select STXs from a folder or drag and drop them into reaConverter, then choose the desired output format.
reaConverter - Load STX files

3. Start Conversion

Click Convert to start the bulk conversion of all selected STX files. The process will begin right away.
reaConverter - Start STX conversion

Convert STX on your PC

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.

Download reaConverter

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.

Conversion features
Image editing

User Reviews

Average User Rating:
Last updated on September 29, 2025
"Creating marketing materials for various platforms requires multiple file versions from single sources. reaConverter's workflow automation lets us generate PNG, JPEG, and SVG variants from AI and PSD files simultaneously. The color profile management ensures brand consistency across all outputs, and the processing speed allows for last-minute changes without delaying deadlines."
Rebecca Turner
Rebecca Turner
Marketing Agency CEO
"reaConverter's automation tools have completely changed how I manage my projects. I often work with large batches of illustrations and used to spend hours converting and organizing them. Now, with Watch Folders, I just set the rules once and everything is handled automatically, exactly how I need it. This is pro-level automation made simple."
Chloe M.
Chloe M.
Freelance Illustrator
"I'd been searching for reliable conversion software forever — reaConverter has everything I need! After installing and watching the tutorial, I had my files converted to the perfect format in minutes. Flawless experience!"
Sanjay Mehta
Sanjay Mehta
Satisfied Customer
"Converts files in seconds! Finally a tool that's both fast and simple to use."
Wei Chen
Wei Chen
Happy User
"Tried a few image tools before, but this one is by far the easiest. Drag, drop, convert — done in seconds. It saved me a ton of time when organizing my image folders."
Lisa K.
Lisa K.
Happy User
"Exactly what I needed! Simple, fast, and no bloat. I use reaConverter Lite to resize and convert batches of images for documents. The presets make it super easy, and everything works smoothly."
Mark Jones
Mark Jones
Happy User

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 settingsChange DPIConvert RAW photosSet manual file dateCopy metadata (EXIF, IPTC)

What formats can I convert a STX file to?
ai  apng  avif  bmp  bpg  cal  cg4  cgm  cin  dcx  dds  dgn  dis  drw  dwf  dwg  dxf  emf  epi  eps  fax  fits  flif  gbr  gif  hpg  hru  ico  iff  iges  igs  jp2  jpeg  jpg  jxl  jxr  mif  mtv  pcl  pct  pcx  pdf  pgm  pic  plt  png  ppm  prc  ps  psd  qoi  qrt  rad  rla  sgi  shp  svg  svgz  tga  tif  tiff  webp  webpll  wmf  wmz  wpg  wrl  xbm  xpm 

Discover more

Explore our efficient STX file converter that saves you time and effort by converting multiple .stx files into different formats.
Download
reaConverter
Buy Now
reaConverter software