Convert ST5 to IFF

Why upload sensitive ST5 files to online converters? reaConverter processes everything locally — convert to IFF with zero cloud risk.

ST5 to IFF conversion is faster with the right tool. reaConverter handles everything from a few files to thousands in one batch. Processes files consistently every time, with full control over quality and output settings.

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ST5 to IFF
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How to Convert Multiple ST5 Files to IFF?

1. Download and Install reaConverter

reaConverter is a standalone Windows app — download, install, and start converting ST5 files in under two minutes.

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Install reaConverter

2. Load your ST5 files

Open reaConverter and import your .st5 files. No file limits, no slowdowns. Add as many as you need.

Drag files into the window, use the Add Files button, or select entire folders.

Load your ST5 files into reaConverter

3. Select IFF as output format

Select IFF as target format and pick where to save results. You can keep default settings or fine-tune the output.

Select IFF as output format

4. Start ST5 to IFF conversion

Hit Convert to process your files. The log window shows progress, timing, and status for every file.

Start Conversion

Conversion complete? Your IFF files are saved to the destination folder, ready to use.

ST5 to IFF Converter

reaConverter offers the fastest, simplest solution for converting your ST5 files into IFF in seconds - all files processed on your PC for maximum privacy and speed.

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Do more with your files

Converting ST5 files for use in a workflow? 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.

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User Reviews

Average User Rating:
Last updated on January 25, 2026
"Finally an app that actually opens my weird files! Saves me from format frustration daily."
Kyle Brooks
Kyle Brooks
Happy User
"This converter delivers exceptionally quick format conversions with reliable results every time."
Brian White
Brian White
Happy User
"Security was our top concern when evaluating file conversion tools. reaConverter’s offline mode and role-based access controls let us lock it down for sensitive environments. No unexpected network calls or bloat — just clean, fast conversions. Even passed our pen-testing scans without a hitch."
Marcus White
Marcus White
Healthcare IT
"Your solution was buried deeper in search results than it should be. After struggling with unclear alternatives, I found your guides — finally, instructions that made sense for a first-time user like me. Excellent work!"
Richard E. Miller
Richard E. Miller
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"Converts files in seconds! Finally a tool that's both fast and simple to use."
Wei Chen
Wei Chen
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"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

ST5 to IFF Conversion: FAQ

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.

What are IFF files?

IFF is an old image format associated with Amiga computers — a brand connected to Commodore, which used to be popular in the 1980s and 1990s. Commodore was one of the first types of personal computers to gain wide popularity among home users. An IFF file most likely contains an image that was created or edited using an image handling program on an Amiga computer. IFF files are currently considered obsolete and uncommon, so opening them with regular image viewers might be difficult.

Can reaConverter convert ST5 to IFF?

Yes! reaConverter instantly converts .st5 to .iff with perfect quality preservation. With its batch processing feature, you can convert multiple files at once in just a few clicks. You can even convert images directly from Windows Explorer using the right-click menu — fast and convenient.

Can I convert ST5 to IFF online?

If you only need to convert a few ST5 files to IFF format, feel free to try our free online free online ST5 to IFF converter — perfect for small batches with no installation needed!

How can I turn ST5 files into IFF on my computer?

The best way to change ST5s to IFFs on your PC is to install 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 to IFF.

How can I automate ST5 to IFF files conversion?

reaConverter supports all the most useful automation features such as right-click сonversion and Watch Folders for the most efficient automated files conversion in any software of this type.

Is there a way to convert ST5 files to IFF using the command prompt?

reaConverter provides full access to all its features via Windows command line, including a high-performance command-line st5 to iff converter for batch processing.

What else can I do with reaConverter?

Convert vector imagesConvert picture color spaceConvert Gerber imagesCrop pictureChange file date

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