Convert FITS to FAX

The quick and simple way to change your FITS into FAX files is to use a quality piece of software, such as reaConverter.

reaConverter is a standalone software designed for bulk FITS to FAX conversion. reaConverter also includes features for resizing, cropping, and editing images, as well as batch processing capabilities that allow users to automate repetitive tasks.

1. Download and Install reaConverter

reaConverter is quick to download, install and launch. This standalone software is extremely efficient in managing a wide range of batch conversions. At the same time, it will allow you to apply image editing options during conversion.

Install reaConverter

2. Load your FITS files

Start reaConverter and load all the .fits files you intend to convert into .fax. The software supports multiple FITS conversion and processes all files locally on your computer.

Select FITSs from a folder or by drag-and-dropping them directly into the reaConverter window.

3. Select FAX as output format

Pick the FAX as output format and choose the destination folder where you want to save new .fax files.

4. Start FITS to FAX conversion

Then simply press Convert button and your conversion will begin in no time!

Once the conversion is complete, you can find your FAX files in the destination folder you selected.

FITS to FAX offline

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

Download Free Trial

Do more with your images

Converting FITS 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 tools

User Reviews

Average User Rating:
Last updated on April 24, 2025

"reaConverter makes FITS conversion incredibly easy. We batch convert astronomical images to standard formats for presentations and analysis, all automated through the command-line. It’s fast, reliable, and handles large datasets without issues."

Laura N.

Astrophysics Research Assistant

"Essential for our astroimaging pipeline! reaConverter perfectly handles FITS files from our research telescope, preserving all WCS coordinates and photometric data during batch conversion to TIFF. Now we process 100+ deep-sky exposures nightly without losing critical metadata for our exoplanet studies!"

Joseph Wilson

Satisfied Customer

"5/5★ Finally! Does what it promises—converts AND tweaks images without complicated menus. Perfect for quick jobs."

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

Satisfied Customer

"I was skeptical at first, but reaConverter exceeded my expectations. The interface is intuitive, and the advanced settings let me tweak outputs perfectly. Plus, the customer support is fantastic!"

Sarah L.

Satisfied Customer

"The step-by-step video makes conversion foolproof. I'd recommend this to my grandma - it's that well-explained!"

DeShawn M. Thompson

Happy User

FITS to FAX Conversion: FAQ

Can reaConverter convert FITS to FAX?

Yes! reaConverter instantly converts .fits to .fax 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 FITS to FAX online?

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

How can I turn FITS files into FAX on my computer?

The best way to change FITSs to FAXs 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 FITS to FAX.

How can I automate FITS to FAX 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 FITS files to FAX using the command prompt?

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

What else can I do with reaConverter?

Copy EXIF data Convert CAD formats Set picture bit depth Convert GIS files Convert PDF