Convert QTK to FITS

QTK to FITS with professional color control. reaConverter batch converts RAW files with options for color balance and output quality.

Batch QTK to FITS conversion doesn't have to be complicated. reaConverter processes entire folders with consistent quality settings. Works offline with no internet required — convert anywhere, anytime. RAW files convert with full color and quality control — no degradation.

1. Download and Install reaConverter

Install reaConverter for fast QTK conversion. Quick setup, then you're ready to process entire photo shoots. Built-in editing tools let you resize, crop, or watermark as you convert.

Install reaConverter

2. Load your QTK files

Launch reaConverter and load the QTK files you want to convert. Add a few files or thousands, batch processing handles them all.

Drag files into the window, use the Add Files button, or select entire folders.

3. Select FITS as output format

Select FITS from the output format list and set your destination folder. You can also adjust quality and compression settings.

4. Start QTK to FITS conversion

Hit Convert to process your files. The log window shows progress, timing, and status for every file.

Conversion complete? Your FITS files are saved to the destination folder, ready to use.

QTK to FITS Converter

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

Download Free Trial

Do more with your images

Converting QTK 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 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

"Creating marketing materials for various platforms requires multiple file versions from single sources. reaConverter's workflow automation lets us generate PNG, JPEG, and SVG variants from AI and PSD files simultaneously. The color profile management ensures brand consistency across all outputs, and the processing speed allows for last-minute changes without delaying deadlines."

Rebecca Turner

Marketing Agency CEO

"I was drowning in mismatched file formats until I found reaConverter. The one-click conversion and editing tools simplified everything, and the pricing is reasonable for small businesses. Now I spend less time troubleshooting and more time growing my brand!"

Emily K.

E-commerce Entrepreneur

"This program is incredibly simple and user-friendly, even beginners can use it with ease. It supports batch processing, works offline, and runs smoothly on my aging Acer Aspire laptop. Best of all, the output quality is outstanding!"

Kevin Harris

Happy User

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

J. Mitchell

Satisfied Customer

QTK to FITS Conversion: FAQ

Can reaConverter convert QTK to FITS?

Yes! reaConverter instantly converts .qtk 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.

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 QTK to FITS online?

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

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

The best way to change QTKs 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 QTK to FITS.

How can I automate QTK 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 QTK 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 qtk to fits converter for batch processing.

What else can I do with reaConverter?

Convert PDF files Watermark photos Copy metadata (EXIF, IPTC)Convert GIS files Set manual file date