Convert JTF to FITS

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

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

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JTF to FITS
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How to Convert Multiple JTF Files to FITS?

1. Download and Install reaConverter

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

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Install reaConverter

2. Load your JTF files

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

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

Load your JTF files into reaConverter

3. Select FITS as output format

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

Select FITS as output format

4. Start JTF to FITS 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 FITS files in the output folder. Click 'Show converted files' to open it directly.

JTF to FITS Converter

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

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Do more with your files

Converting JTF 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 January 22, 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
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.
Laura N.
Astrophysics Research Assistant
"An efficient all-in-one solution for image conversion and light editing, designed for maximum user-friendliness."
Elena Anderson
Elena Anderson
Happy User
"Enable shell integration for lightning-fast file conversions directly from Windows Explorer."
R. Lewis
R. Lewis
Happy User
"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
Satisfied Customer
"Finally an app that actually opens my weird files! Saves me from format frustration daily."
Kyle Brooks
Kyle Brooks
Happy User

JTF to FITS Conversion: FAQ

What are JTF files?

JTF is an image format associated with Hayes fax machines. Hayes Microcomputer Products was an American company popular in the 1980s and early 1990s for its modems and fax-modem machines. The company was not able to adapt to technology changes related to the introduction of cable modems and ADSL, and was liquidated in 1999. JTF images are currently considered rare and obsolete.

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 JTF to FITS?

Yes! reaConverter instantly converts .jtf 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 JTF to FITS online?

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

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

The best way to change JTFs 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 JTF to FITS.

How can I automate JTF 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 JTF 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 jtf to fits converter for batch processing.

What else can I do with reaConverter?

Convert GIS filesConvert vector filesConvert picture color spaceChange format settingsChange image DPI

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