Convert FI to FITS

The quick and simple way to convert FI to FITS files is to use a quality batch conversion software, such as reaConverter.

reaConverter - the leading solution for bulk FI to FITS conversion. Process thousands of files in seconds with perfect quality.

Download
reaConverter
Convert
FI to FITS
Online
Convert

How to Convert Multiple FI Files to FITS?

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. reaConverter is incredibly powerful and boasts an extensive variety of features.

reaConverter logo
Install reaConverter

2. Load your FI files

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

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

Load your FI files into reaConverter

3. Select FITS as output format

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

Select FITS as output format

4. Start FI to FITS conversion

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

Screenshot

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

FI to FITS Converter

reaConverter offers the fastest, simplest solution for converting your FI 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 FI 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
Image editing

User Reviews

Average User Rating:
Last updated on May 24, 2025
"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
"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
Happy User
"Rare software that actually does it all! Converts anything, beautiful interface, and never lets me down. A must-have!"
⭐⭐⭐⭐⭐
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
Happy User
"We deployed reaConverter across our department to standardize file formats for our archives. The command-line support and automation features integrated perfectly into our systems. Stellar performance and zero crashes—it just works."
⭐⭐⭐⭐⭐
David R.
IT Solutions Architect

FI to FITS Conversion: FAQ

What are FI files?

FI is a rare and obsolete file format associated with Flash Image, an image handling program which is not very well known at the moment. For easier storing and transferring, FI images can be converted to more popular and widely accessible image formats, such as JPG, PNG or TIF.

What are FITS files?

The FITS (Flexible Image Transport System) format is a standard format used particularly for storing, transferring and processing scientific images from fields such as astronomy. FITS was first launched as an open standard in the early 1980s and has gone through several subsequent upgrades. FITS files contain not just images, but also data related to photometry and spatial calibration, and information about the origin of the image. Similar formats include FIT and FTS.

Can reaConverter convert FI to FITS?

Yes! reaConverter instantly converts .fi 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 FI to FITS online?

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

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

The best way to change FIs 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 FI to FITS.

How can I automate FI 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 FI 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 fi to fits converter for batch processing.

What else can I do with reaConverter?

Change format settingsChange DPIConvert RAW photosConvert DICOM filesChange photo size

Find out more

Get advanced software for file conversion, processing, and editing, giving you complete, precise control over your work.
Download
reaConverter
Buy Now
reaConverter software