Convert FIT to IFF

Convert FIT to IFF without uploading files anywhere. reaConverter works entirely on your PC — fast, private, and handles thousands of files at once.

Manual FIT to IFF conversion wastes hours. reaConverter automates the process — just add files and click Convert. Everything happens offline on your computer — no uploads, no cloud risks.

FITIFF

How to Convert Multiple FIT Images to IFF?

1. Download and Install reaConverter

reaConverter installs quickly on any Windows PC. No dependencies, no bloatware — just a clean setup that's ready to use immediately. Built-in editing tools let you resize, crop, or watermark as you convert.

2. Load your FIT files

Open reaConverter and add your FIT files. You can load individual files, entire folders, or even nested subfolders.

Drop your FIT files into the window or use File menu to browse and select folders.

Load your FIT files into reaConverter

3. Select IFF as output format

Choose IFF as the target format. Pick a destination folder or let reaConverter save files alongside the originals.

Select IFF as output format

4. Start FIT to IFF conversion

Hit Convert and let reaConverter do the work. The progress window shows status for each file in real time.

Start Conversion

After conversion, find your IFF files in the output folder. Click 'Show converted files' to open it directly.

FIT to IFF Converter

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

Do more with your images

Converting FIT images for use in a larger project? With reaConverter, you can convert, edit, and enhance your images in one streamlined process.

Our range of editing options includes such image processing actions as Resize, Rotate, Crop, Color Replace, Watermarks and more. Adjust actions include RGB, HLS, HSV, Brightness and Contrast. Auto-processing options are also available, such as auto-rotate and auto-crop.

Image editing

User Reviews

Average User Rating:
Last updated on January 25, 2026
"reaConverter perfectly processes FIT files from our observatory telescopes into TIFFs while preserving all celestial metadata and sensor calibration data. Finally, we can batch-convert night-sky captures without losing a single photon of data fidelity!"
Prof. William S. Davis
Prof. William S. Davis
Satisfied Customer
"This software just works! My old laptop can’t handle Photoshop, but reaConverter flies through conversions without breaking a sweat. Wi-Fi gone? Still strong!"
Robert Williams
Robert Williams
Happy User
"Rare software that actually does it all! Converts anything, beautiful interface, and never lets me down. A must-have!"
Henry R.
Henry R.
Happy User
"For cross-platform compatibility, JPEG remains the gold standard. reaConverter’s precision conversions ensure perfect results every time, whether for presentations, websites, or client deliverables."
Paul Baker
Paul Baker
Happy User
"5/5⭐ Finally! Does what it promises - converts AND tweaks images without complicated menus. Perfect for quick jobs."
J. Mitchell
J. Mitchell
Satisfied Customer
"reaConverter is pure gold! Rock-solid performance with zero crashes. No internet needed—perfect for travel or low-connectivity work. The ultimate offline alternative to sketchy web converters. Plus, the desktop version keeps sensitive files secure since nothing ever gets uploaded to the cloud."
Malik T. Martin
Malik T. Martin
Satisfied Customer

FIT to IFF Conversion: FAQ

Can reaConverter convert FIT to IFF?

Yes! reaConverter instantly converts .fit 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.

What is reaConverter used for?

reaConverter is a software program used for converting images and other types of files from one format to another. It supports a wide range of file formats and allows users to convert multiple files at once, making it a valuable tool for graphic designers, photographers, and other professionals who work with digital images. reaConverter also includes features for resizing, cropping, and editing images, along with batch processing capabilities that help automate repetitive tasks.

Can I convert FIT to IFF online?

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

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

The best way to change FITs 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 FIT to IFF.

How can I automate FIT 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 FIT 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 fit to iff converter for batch processing.

What else can I do with reaConverter?

Change format settingsChange DPICopy metadata (EXIF, IPTC)Convert Gerber filesCrop image

Find out more

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