ST5 Converter

Convert ST5 files fast and easy with reaConverter - batch process all your files at once with just a few clicks.

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ST5 Files
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How to Convert .st5 Files in Bulk

1. Install reaConverter

Download reliable ST5 conversion software to convert multiple .st5 files and folders in one go.
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Install reaConverter

2. Select ST5 Files

Select ST5s from a folder or drag and drop them into reaConverter, then choose the desired output format.
reaConverter - Load ST5 files

3. Start Conversion

Click Convert to start the bulk conversion of all selected ST5 files. The process will begin right away.
reaConverter - Start ST5 conversion

Convert ST5 on your PC

For quick and effortless ST5 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.

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Do more with your files

Converting ST5 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 August 31, 2025
"After 200+ conversions on my budget laptop (i3-1115G4/4GB RAM/Win11), reaConverter outperforms heavyweight tools. Zero crashes, low CPU usage during batch processing, and no internet dependency - exactly what professionals need."
Walter Morgan
Walter Morgan
Satisfied Customer
"This program is incredibly simple and user-friendly, even beginners can use it with ease. It supports batch processing, works offline, and runs smoothly on my aging Acer Aspire laptop. Best of all, the output quality is outstanding!"
Kevin Harris
Kevin Harris
Happy User
"Converts files in seconds! Finally a tool that's both fast and simple to use."
Wei Chen
Wei Chen
Happy User
"I use the online converter — it’s quick and hassle-free!"
Jian Wong
Jian Wong
Happy Online User
"Working in a print studio means constantly juggling obscure file formats. I used to waste hours Googling converters or installing random software — until reaConverter became my Swiss Army knife. Install it once, and you're set forever. No internet? No problem!"
Helen Evans
Helen Evans
Satisfied Customer
"Before reaConverter, I was the ‘File Conversion Guy’ at work — a title I never asked for and definitely didn’t want. Then I found the Watch Folders feature, and suddenly I was free! Now, files convert themselves while I sip coffee and pretend I'm still working hard. My coworkers think I'm a wizard. Thanks reaConverter, for saving my sanity and boosting my fake productivity!"
Ben H.
Ben H.
Overwhelmed Office Hero

ST5 files: Frequently Asked Questions

What are ST5 files?

The ST5 extension is attached to RAW images shot with the ST-X model of SBIG CCD cameras. The format is also known as Santa Barbara Instruments Astronomical Image and SBIG represents a brand of specialized imaging cameras, mostly used in astronomy, color photometry, medical imaging and a few other scientific and industrial sectors. As part of these niche uses, ST5 images are considered rare and are probably difficult to open using regular image viewers.

Can reaConverter open ST5 files?

reaConverter fully supports the ST5 file format – open, edit, and export ST5 files to any other popular file format with ease.

How do I change ST5 to another format?

reaConverter is a user-friendly tool for converting ST5 files. Once installed on your computer, it allows you to convert all your .st5 files at once with just a few clicks. You can even convert st5 images directly from Windows Explorer using the right-click menu — fast and convenient.

Can I convert ST5 online?

If you only want to convert a few ST5 files, you are welcome to try our free online ST5 converter.

How can I turn ST5 files on my computer to another format?

The best way to convert ST5 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 ST5.

How can I automate ST5 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 ST5 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 st5 converter.

What else can I do with reaConverter?

Set manual file dateChange format settingsChange DPIConvert GIS filesConvert CAD formats

What formats can I convert a ST5 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 

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Explore our efficient ST5 file converter that saves you time and effort by converting multiple .st5 files into different formats.
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