Convert Q3O to FITS

Q3O to FITS with consistent quality. reaConverter handles 3D files in batch — perfect for collaboration across different software.

Got a folder full of Q3O files? reaConverter batch converts them to FITS in minutes, not hours. Local processing means instant results, even with thousands of files. 3D artists rely on it when clients need different file formats.

Download
reaConverter
Convert
Q3O to FITS
Online
Q3OFITS

How to Convert Multiple Q3O Files to FITS?

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.

reaConverter logo
Install reaConverter

2. Load your Q3O files

Add your Q3O files to reaConverter. Whether it's a handful or an entire archive, the batch engine processes them efficiently.

Browse for files, drag them in, or add entire folders at once. reaConverter queues everything automatically.

Load your Q3O files into reaConverter

3. Select FITS as output format

Pick FITS as the output format. Set the destination folder and optionally configure resolution, quality, or file naming.

Select FITS as output format

4. Start Q3O to FITS conversion

Start the conversion with one click. reaConverter handles everything and notifies you when it's done.

Start Conversion

When the batch finishes, your FITS files are ready in the destination folder you chose earlier.

Q3O to FITS Converter

reaConverter offers the fastest, simplest solution for converting your Q3O 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 Q3O 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 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.
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
Joseph Wilson
Satisfied Customer
"An ultra-fast solution for minimizing file sizes. The entire conversion process takes just 3 minutes!"
Logan B.
Logan B.
Satisfied Customer
"I use the online converter — it’s quick and hassle-free!"
Jian Wong
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
Helen Evans
Satisfied Customer
"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.
David R.
IT Solutions Architect

Q3O to FITS Conversion: FAQ

What are Q3O files?

The Q3O extension is attached to "object" files created with Quick3D, a program specialized in 3D modelling. Q3O is also known as a "Model file format" and it is currently considered old and obsolete. Similar formats associated with Quick3D include Q3S and Q3C.

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 Q3O to FITS?

Yes! reaConverter instantly converts .q3o 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 Q3O to FITS online?

If you only need to convert a few Q3O files to FITS format, feel free to try our free online free online Q3O to FITS converter — perfect for small batches with no installation needed!

How can I turn Q3O files into FITS on my computer?

The best way to change Q3Os 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 Q3O to FITS.

How can I automate Q3O 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 Q3O 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 q3o to fits converter for batch processing.

What else can I do with reaConverter?

Convert DICOM imagesResize pictureConvert RAW filesConvert Gerber imagesCrop pictures

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