Convert REC to FITS

Bulk REC to FITS conversion with consistent results. Set it up once, process thousands of files with the same quality every time.

Looking to change REC files to FITS format? reaConverter makes it simple — add your files, select output format, and convert entire folders in one click. Runs entirely on your hardware for maximum speed — no waiting for uploads or server queues.

1. Download and Install reaConverter

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

Install reaConverter

2. Load your REC files

Start reaConverter and add your .rec files. The software processes everything locally, so your files never leave your computer.

Use drag-and-drop, folder browser, or right-click conversion from Explorer.

3. Select FITS as output format

Select FITS from 700+ supported output formats. Choose your destination folder and adjust settings to match your needs.

4. Start REC to FITS conversion

Click Convert to start the batch. reaConverter processes files quickly and shows you the status of each one.

Once done, reaConverter shows a summary. Click 'Show converted files' to jump straight to your FITS output.

REC to FITS Converter

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

Download Free Trial

Do more with your files

Converting REC 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.

Conversion features

User Reviews

Average User Rating:
Last updated on January 25, 2026

"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

"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

"Finally an app that actually opens my weird files! Saves me from format frustration daily."

Kyle Brooks

Happy User

"This converter delivers exceptionally quick format conversions with reliable results every time."

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

Healthcare IT

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

J. Mitchell

Satisfied Customer

REC to FITS Conversion: FAQ

Can reaConverter convert REC to FITS?

Yes! reaConverter instantly converts .rec to .fits 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 REC to FITS online?

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

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

The best way to change RECs to FITSs 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 REC to FITS.

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

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

What else can I do with reaConverter?

Convert vector files Convert picture color space Copy IPTC data Change format settings Change image DPI