Convert HRU to FITS

HRU to FITS made simple. Add files or folders, pick your settings, click Convert. reaConverter handles the rest — even thousands of files.

Looking to change HRU 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 installs quickly on any Windows PC. No dependencies, no bloatware — just a clean setup that's ready to use immediately. Need edits? Resize, rotate, or add watermarks during conversion.

Install reaConverter

2. Load your HRU files

Start reaConverter and add your .hru 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 HRU 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.

HRU to FITS Converter

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

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Do more with your images

Converting HRU 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

"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

"An ultra-fast solution for minimizing file sizes. The entire conversion process takes just 3 minutes!"

Logan B.

Satisfied Customer

"I use the online converter — it’s quick and hassle-free!"

Jian Wong

Happy Online User

"Working in a print studio means constantly juggling obscure file formats. I used to waste hours Googling converters or installing random software — until reaConverter became my Swiss Army knife. Install it once, and you're set forever. No internet? No problem!"

Helen Evans

Satisfied Customer

"An efficient all-in-one solution for image conversion and light editing, designed for maximum user-friendliness."

Elena Anderson

Happy User

HRU to FITS Conversion: FAQ

Can reaConverter convert HRU to FITS?

Yes! reaConverter instantly converts .hru 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 HRU to FITS online?

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

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

The best way to change HRUs 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 HRU to FITS.

How can I automate HRU 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 HRU 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 hru to fits converter for batch processing.

What else can I do with reaConverter?

Convert DICOM images Resize picture Convert GIS files Convert RAW photo formats Convert vector images