Convert ST4 to IFF

Need to convert hundreds of ST4 files to IFF? reaConverter does it in one click. No file limits, no watermarks, no internet required.

Need to convert ST4 to IFF? reaConverter handles batch conversion with ease, processing hundreds of files at once while preserving quality. Your files never leave your machine. No third-party servers, no privacy concerns.

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ST4 to IFF
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How to Convert Multiple ST4 Files to IFF?

1. Download and Install reaConverter

reaConverter is a standalone Windows app — download, install, and start converting ST4 files in under two minutes.

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Install reaConverter

2. Load your ST4 files

Launch reaConverter and load the ST4 files you want to convert. Add a few files or thousands, batch processing handles them all.

Drag-and-drop ST4s directly into reaConverter or use the folder browser to load entire directories.

Load your ST4 files into reaConverter

3. Select IFF as output format

Set IFF as output format and select where to save your converted files. Customize quality settings if needed.

Select IFF as output format

4. Start ST4 to IFF conversion

Press Convert to begin processing. You can watch the progress or minimize and let it run in the background.

Start Conversion

Your converted IFF files will appear in the destination folder as soon as processing completes.

ST4 to IFF Converter

reaConverter offers the fastest, simplest solution for converting your ST4 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 ST4 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
"An efficient all-in-one solution for image conversion and light editing, designed for maximum user-friendliness."
Elena Anderson
Elena Anderson
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"Enable shell integration for lightning-fast file conversions directly from Windows Explorer."
R. Lewis
R. Lewis
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"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
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"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!"
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ST4 to IFF Conversion: FAQ

What are ST4 files?

An ST4 file represents a RAW image taken with an SBIG CCD camera. SBIG is a producer of astronomical instruments and ST4s most likely contain images related to some type of scientific or industrial application. They 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 ST4 to IFF?

Yes! reaConverter instantly converts .st4 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 ST4 to IFF online?

If you only need to convert a few ST4 files to IFF format, feel free to try our free online free online ST4 to IFF converter — perfect for small batches with no installation needed!

How can I turn ST4 files into IFF on my computer?

The best way to change ST4s 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 ST4 to IFF.

How can I automate ST4 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 ST4 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 st4 to iff converter for batch processing.

What else can I do with reaConverter?

Convert GIS filesConvert Gerber filesCrop photosConvert RAW filesCopy IPTC data

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