Convert FITS to HRU

Tired of slow online converters? reaConverter transforms FITS to HRU instantly — right on your desktop, no upload needed.

Online converters too slow for your FITS files? reaConverter works locally and handles unlimited batches. All processing runs locally on your PC, so your files stay private and secure.

1. Download and Install reaConverter

First, grab reaConverter from the download button below. Installation is fast, and the software runs offline — no account or signup needed. Need edits? Resize, rotate, or add watermarks during conversion.

Install reaConverter

2. Load your FITS files

Add FITS files to reaConverter. One file or a thousand, the process is the same. Everything runs locally on your machine.

You can drag-and-drop files, browse to a folder, or add entire directory trees including subfolders.

3. Select HRU as output format

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

4. Start FITS to HRU conversion

Click the Convert button to start. reaConverter will process all your files with the settings you selected.

When finished, your new .hru files will be waiting in the destination folder.

FITS to HRU Converter

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

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Do more with your images

Converting FITS 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 15, 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

"The step-by-step video makes conversion foolproof. I'd recommend this to my grandma - it's that well-explained!"

DeShawn M. Thompson

Happy User

"I'm really impressed with this software - it converts files between formats incredibly fast!"

Lin Zhang

Happy User

"I firmly believe working with JPEG — the universal format supported by all devices and apps—is the wisest choice. reaConverter handles these conversions flawlessly."

Ava Thomas

Happy User

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

Elena Anderson

Happy User

FITS to HRU Conversion: FAQ

Can reaConverter convert FITS to HRU?

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

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

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

The best way to change FITSs to HRUs 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 FITS to HRU.

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

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

What else can I do with reaConverter?

Convert CAD formats Set picture bit depth Convert GIS files Convert PDF Watermark image